Benchmark Overview

Costco’s E-Commerce UX

This is a case study of Costco’s e-commerce user experience (UX) performance. It’s based on a full-performance review of more than 550 design elements. 59 other sites have also been benchmarked for a complete picture of the e-commerce UX landscape

Costco’s overall e-commerce UX performance is poor. This is mainly due to broken Cart & Checkout, poor Accounts & Self-Service, and poor On-Site Search performances.

Costco’s Homepage & Category performance is decent. For instance, Costco’s category experience has state of the art Site-Wide Layout and good Intermediary Category Pages yet suffers from mediocre Main Navigation.

Costco’s On-Site Search performance is poor. Some of Costco’s biggest on-site search usability issues are due to broken Search Form & Logic and Results Layout & Filtering. That said, their search experience performs well within Search Autocomplete.

Costco’s Product Lists & Filtering performance is poor. Costco’s product listings are particularly thwarted by usability issues related to mediocre Loading Products, Filtering: Available Filters, and Filtering: Scope & Logic.

Costco’s Product Page performance is mediocre. Notably, Costco’s product page performance is hampered by mediocre Product Descriptions and User Reviews, although this is helped somewhat by state of the art Product Page Layout.

Costco’s Cart & Checkout performance is broken. Some of Costco’s biggest checkout usability issues are due to mediocre User Interactions & Distractions, Field Labels & Microcopy, and Payment Flow & Methods (Incl. Third-Party). That said, their checkout performs well within Form & Page Design.

Costco’s Accounts & Self-Service performance is poor. Some of Costco’s biggest account usability issues are due to poor Account-Wide Navigation, Structure, & Information, poor ‘Your Account’: Addresses, Payments, & Newsletters, and broken Order Returns. That said, their account experience performs great within Account Drop-Down.

Costco’s Mobile E-Commerce performance is poor. Costco’s mobile design is particularly thwarted by usability issues related to mediocre Touch Keyboards, poor Mobile Filtering & Sorting, and broken Mobile Form Field Usability. That said, their mobile design performs great within Mobile Product Lists.

Rank: 60 of 60

Usability Score: 169

URL: costco.com


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Acceptable
Good

Costco's E-Commerce UX: 647 guidelines · Comparative score: 168.9

Homepage & Category: 63 guidelines · Score: 740.0

Homepage: 15 guidelines · Score: 104.0

These 15 ‘Homepage’ guidelines are only available in Baymard Premium — they are based on our large-scale Homepage & Category UX research study, and outline the 15 elements necessary to create a high-performing ‘Homepage’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #237 Adhered High · Score: 33.1

Guideline #240 Neutral · Score: 0.0

Guideline #242 Adhered High · Score: 23.6

Guideline #248 Violated Low · Score: -11.8

Guideline #235 Adhered High · Score: 14.2

Guideline #238 Neutral · Score: 0.0

Guideline #236 Not Applicable · Score: 0.0

Guideline #246 Not Applicable · Score: 0.0

Guideline #249 Neutral · Score: 0.0

Guideline #245 Issue Resolved · Score: 23.6

Guideline #241 Adhered Low · Score: 7.1

Guideline #247 Not Applicable · Score: 0.0

Guideline #239 Not Applicable · Score: 0.0

Guideline #264 Neutral · Score: 0.0

Guideline #257 Adhered High · Score: 14.2

Category Taxonomy: 15 guidelines · Score: 179.7

These 15 ‘Category Taxonomy’ guidelines are only available in Baymard Premium — they are based on our large-scale Homepage & Category UX research study, and outline the 15 elements necessary to create a high-performing ‘Category Taxonomy’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #253 Violated High · Score: -33.1

Guideline #261 Adhered High · Score: 23.6

Guideline #263 Adhered High · Score: 33.1

Guideline #266 Adhered High · Score: 23.6

Guideline #267 Violated High · Score: -33.1

Guideline #268 Adhered High · Score: 28.4

Guideline #259 Issue Resolved · Score: 37.8

Guideline #282 Adhered High · Score: 23.6

Guideline #286 Adhered High · Score: 23.6

Guideline #274 Not Applicable · Score: 0.0

Guideline #251 Not Applicable · Score: 0.0

Guideline #278 Adhered High · Score: 18.9

Guideline #277 Issue Resolved · Score: 18.9

Guideline #318 Adhered High · Score: 14.2

Guideline #1008 Not Applicable · Score: 0.0

Main Navigation: 16 guidelines · Score: 163.1

These 16 ‘Main Navigation’ guidelines are only available in Baymard Premium — they are based on our large-scale Homepage & Category UX research study, and outline the 16 elements necessary to create a high-performing ‘Main Navigation’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #287 Violated High · Score: -33.1

Guideline #294 Adhered High · Score: 37.8

Guideline #302 Adhered Low · Score: 16.5

Guideline #289 Adhered Low · Score: 11.8

Guideline #288 Violated Low · Score: -14.2

Guideline #303 Not Applicable · Score: 0.0

Guideline #298 Issue Resolved · Score: 28.4

Guideline #291 Adhered High · Score: 23.6

Guideline #297 Not Applicable · Score: 0.0

Guideline #256 Issue Resolved · Score: 23.6

Guideline #304 Issue Resolved · Score: 23.6

Guideline #305 Adhered High · Score: 18.9

Guideline #296 Adhered High · Score: 18.9

Guideline #299 Violated Low · Score: -7.1

Guideline #306 Adhered High · Score: 14.2

Guideline #300 Not Applicable · Score: 0.0

Intermediary Category Pages: 6 guidelines · Score: 118.2

These 6 ‘Intermediary Category Pages’ guidelines are only available in Baymard Premium — they are based on our large-scale Homepage & Category UX research study, and outline the 6 elements necessary to create a high-performing ‘Intermediary Category Pages’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #307 Adhered High · Score: 37.8

Guideline #309 Adhered High · Score: 33.1

Guideline #308 Issue Resolved · Score: 23.6

Guideline #311 Not Applicable · Score: 0.0

Guideline #312 Issue Resolved · Score: 23.6

Guideline #310 Not Applicable · Score: 0.0

Site-Wide Layout: 11 guidelines · Score: 174.9

‘State of the Art’

These 11 ‘Site-Wide Layout’ guidelines are only available in Baymard Premium — they are based on our large-scale Homepage & Category UX research study, and outline the 11 elements necessary to create a high-performing ‘Site-Wide Layout’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #279 Adhered High · Score: 23.6

Guideline #258 Issue Resolved · Score: 37.8

Guideline #252 Adhered High · Score: 23.6

Guideline #250 Adhered High · Score: 18.9

Guideline #293 Adhered High · Score: 18.9

Guideline #290 Adhered High · Score: 14.2

Guideline #284 Issue Resolved · Score: 14.2

Guideline #260 Adhered High · Score: 14.2

Guideline #255 Adhered High · Score: 9.5

Guideline #273 Not Applicable · Score: 0.0

Guideline #940 Not Applicable · Score: 0.0

On-Site Search: 50 guidelines · Score: 107.2

Search Query Types: 12 guidelines · Score: 23.4

These 12 ‘Search Query Types’ guidelines are only available in Baymard Premium — they are based on our large-scale On-Site Search UX research study, and outline the 12 elements necessary to create a high-performing ‘Search Query Types’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #333 Adhered High · Score: 53.6

Guideline #334 Violated Low · Score: -26.8

Guideline #340 Violated Low · Score: -16.7

Guideline #335 Violated High · Score: -33.5

Guideline #337 Not Applicable · Score: 0.0

Guideline #341 Not Applicable · Score: 0.0

Guideline #344 Adhered High · Score: 46.9

Guideline #399 Violated High · Score: -33.5

Guideline #338 Not Applicable · Score: 0.0

Guideline #347 Not Applicable · Score: 0.0

Guideline #342 Adhered High · Score: 33.5

Guideline #398 Not Applicable · Score: 0.0

Search Form & Logic: 10 guidelines · Score: -26.8

These 10 ‘Search Form & Logic’ guidelines are only available in Baymard Premium — they are based on our large-scale On-Site Search UX research study, and outline the 10 elements necessary to create a high-performing ‘Search Form & Logic’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #336 Not Applicable · Score: 0.0

Guideline #346 Violated High · Score: -40.2

Guideline #349 Issue Resolved · Score: 33.5

Guideline #407 Violated High · Score: -46.9

Guideline #339 Issue Resolved · Score: 33.5

Guideline #343 Not Applicable · Score: 0.0

Guideline #351 Violated High · Score: -33.5

Guideline #348 Adhered High · Score: 26.8

Guideline #350 Not Applicable · Score: 0.0

Guideline #352 Not Applicable · Score: 0.0

Search Autocomplete: 8 guidelines · Score: 214.4

These 8 ‘Search Autocomplete’ guidelines are only available in Baymard Premium — they are based on our large-scale On-Site Search UX research study, and outline the 8 elements necessary to create a high-performing ‘Search Autocomplete’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #359 Adhered High · Score: 40.2

Guideline #404 Adhered Low · Score: 20.1

Guideline #361 Adhered High · Score: 20.1

Guideline #356 Issue Resolved · Score: 33.5

Guideline #369 Adhered High · Score: 40.2

Guideline #368 Adhered High · Score: 33.5

Guideline #363 Adhered High · Score: 26.8

Guideline #1001 Not Applicable · Score: 0.0

Results Logic & Guidance: 8 guidelines · Score: 80.4

These 8 ‘Results Logic & Guidance’ guidelines are only available in Baymard Premium — they are based on our large-scale On-Site Search UX research study, and outline the 8 elements necessary to create a high-performing ‘Results Logic & Guidance’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #358 Violated High · Score: -46.9

Guideline #362 Neutral · Score: 0.0

Guideline #370 Adhered High · Score: 40.2

Guideline #367 Not Applicable · Score: 0.0

Guideline #355 Adhered High · Score: 20.1

Guideline #394 Issue Resolved · Score: 33.5

Guideline #365 Issue Resolved · Score: 33.5

Guideline #371 Not Applicable · Score: 0.0

Results Layout & Filtering: 12 guidelines · Score: -184.2

These 12 ‘Results Layout & Filtering’ guidelines are only available in Baymard Premium — they are based on our large-scale On-Site Search UX research study, and outline the 12 elements necessary to create a high-performing ‘Results Layout & Filtering’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #382 Violated High · Score: -33.5

Guideline #379 Violated High · Score: -53.6

Guideline #386 Adhered High · Score: 46.9

Guideline #381 Neutral · Score: 0.0

Guideline #377 Violated Low · Score: -16.7

Guideline #376 Adhered Low · Score: 26.8

Guideline #403 Violated High · Score: -46.9

Guideline #393 Violated High · Score: -33.5

Guideline #406 Violated High · Score: -33.5

Guideline #378 Neutral · Score: 0.0

Guideline #401 Neutral · Score: 0.0

Guideline #402 Violated High · Score: -40.2

Product Lists & Filtering: 96 guidelines · Score: 57.2

List Layout: 7 guidelines · Score: 62.6

These 7 ‘List Layout’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 7 elements necessary to create a high-performing ‘List Layout’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #541 Not Applicable · Score: 0.0

Guideline #533 Violated Low · Score: -16.3

Guideline #531 Adhered Low · Score: 13.6

Guideline #537 Adhered High · Score: 27.2

Guideline #535 Not Applicable · Score: 0.0

Guideline #536 Not Applicable · Score: 0.0

Guideline #862 Adhered High · Score: 38.1

Loading Products: 6 guidelines · Score: -16.3

These 6 ‘Loading Products’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 6 elements necessary to create a high-performing ‘Loading Products’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #501 Violated High · Score: -32.7

Guideline #502 Violated Low · Score: -16.3

Guideline #503 Adhered High · Score: 16.3

Guideline #504 Adhered Low · Score: 16.3

Guideline #505 Not Applicable · Score: 0.0

Guideline #1024 Not Applicable · Score: 0.0

List Items: Product Info & Thumbnails: 16 guidelines · Score: 138.8

These 16 ‘List Items: Product Info & Thumbnails’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 16 elements necessary to create a high-performing ‘List Items: Product Info & Thumbnails’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #440 Adhered High · Score: 43.5

Guideline #421 Not Applicable · Score: 0.0

Guideline #443 Adhered High · Score: 38.1

Guideline #446 Violated High · Score: -32.7

Guideline #422 Adhered High · Score: 32.7

Guideline #441 Adhered High · Score: 27.2

Guideline #447 Not Applicable · Score: 0.0

Guideline #444 Not Applicable · Score: 0.0

Guideline #455 Not Applicable · Score: 0.0

Guideline #445 Adhered High · Score: 38.1

Guideline #457 Not Applicable · Score: 0.0

Guideline #463 Not Applicable · Score: 0.0

Guideline #456 Adhered Low · Score: 13.6

Guideline #458 Not Applicable · Score: 0.0

Guideline #459 Violated High · Score: -21.8

Guideline #462 Not Applicable · Score: 0.0

List Items: Interface & Hit Areas: 10 guidelines · Score: -54.4

These 10 ‘List Items: Interface & Hit Areas’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 10 elements necessary to create a high-performing ‘List Items: Interface & Hit Areas’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #448 Violated High · Score: -38.1

Guideline #528 Not Applicable · Score: 0.0

Guideline #452 Violated High · Score: -27.2

Guideline #450 Neutral · Score: 0.0

Guideline #449 Adhered High · Score: 27.2

Guideline #525 Violated Low · Score: -13.6

Guideline #527 Violated High · Score: -27.2

Guideline #529 Issue Resolved · Score: 32.7

Guideline #530 Violated Low · Score: -8.2

Guideline #526 Not Applicable · Score: 0.0

List Items: Personalization: 5 guidelines · Score: 16.3

These 5 ‘List Items: Personalization’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 5 elements necessary to create a high-performing ‘List Items: Personalization’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #480 Adhered High · Score: 38.1

Guideline #482 Not Applicable · Score: 0.0

Guideline #483 Not Applicable · Score: 0.0

Guideline #485 Not Applicable · Score: 0.0

Guideline #484 Violated High · Score: -21.8

Filtering: Available Filters: 10 guidelines · Score: -29.9

These 10 ‘Filtering: Available Filters’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 10 elements necessary to create a high-performing ‘Filtering: Available Filters’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #409 Adhered High · Score: 43.5

Guideline #413 Adhered High · Score: 38.1

Guideline #418 Not Applicable · Score: 0.0

Guideline #408 Violated High · Score: -38.1

Guideline #417 Not Applicable · Score: 0.0

Guideline #540 Not Applicable · Score: 0.0

Guideline #410 Violated High · Score: -32.7

Guideline #414 Violated High · Score: -27.2

Guideline #416 Violated High · Score: -27.2

Guideline #415 Adhered Low · Score: 13.6

Filtering: Scope & Logic: 14 guidelines · Score: 38.1

These 14 ‘Filtering: Scope & Logic’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 14 elements necessary to create a high-performing ‘Filtering: Scope & Logic’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #424 Adhered High · Score: 38.1

Guideline #427 Adhered High · Score: 38.1

Guideline #433 Violated High · Score: -38.1

Guideline #423 Not Applicable · Score: 0.0

Guideline #430 Not Applicable · Score: 0.0

Guideline #428 Violated Low · Score: -10.9

Guideline #432 Not Applicable · Score: 0.0

Guideline #429 Adhered High · Score: 10.9

Guideline #436 Not Applicable · Score: 0.0

Guideline #439 Not Applicable · Score: 0.0

Guideline #488 Violated High · Score: -27.2

Guideline #492 Adhered High · Score: 27.2

Guideline #493 Adhered High · Score: 27.2

Guideline #486 Violated High · Score: -27.2

Filtering: Interface & Layout: 11 guidelines · Score: 70.8

These 11 ‘Filtering: Interface & Layout’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 11 elements necessary to create a high-performing ‘Filtering: Interface & Layout’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #468 Not Applicable · Score: 0.0

Guideline #474 Adhered High · Score: 32.7

Guideline #470 Adhered High · Score: 38.1

Guideline #464 Violated Low · Score: -13.6

Guideline #467 Adhered High · Score: 27.2

Guideline #475 Violated High · Score: -27.2

Guideline #479 Adhered Low · Score: 13.6

Guideline #476 Not Applicable · Score: 0.0

Guideline #465 Issue Resolved · Score: 27.2

Guideline #471 Violated High · Score: -27.2

Guideline #472 Not Applicable · Score: 0.0

Sorting: 11 guidelines · Score: -27.2

These 11 ‘Sorting’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 11 elements necessary to create a high-performing ‘Sorting’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #510 Violated High · Score: -43.5

Guideline #511 Violated High · Score: -38.1

Guideline #539 Adhered High · Score: 21.8

Guideline #514 Adhered High · Score: 27.2

Guideline #513 Adhered High · Score: 27.2

Guideline #509 Violated High · Score: -27.2

Guideline #521 Adhered High · Score: 27.2

Guideline #517 Violated High · Score: -21.8

Guideline #515 Not Applicable · Score: 0.0

Guideline #516 Not Applicable · Score: 0.0

Guideline #523 Not Applicable · Score: 0.0

Comparison Tool: 5 guidelines · Score: -141.5

These 5 ‘Comparison Tool’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Lists & Filtering UX research study, and outline the 5 elements necessary to create a high-performing ‘Comparison Tool’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #495 Violated High · Score: -38.1

Guideline #496 Violated High · Score: -27.2

Guideline #497 Violated High · Score: -38.1

Guideline #499 Violated High · Score: -16.3

Guideline #498 Violated High · Score: -21.8

Product Page: 95 guidelines · Score: 381.4

Product Page Layout: 8 guidelines · Score: 79.4

‘State of the Art’

These 8 ‘Product Page Layout’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 8 elements necessary to create a high-performing ‘Product Page Layout’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #751 Adhered High · Score: 24.2

Guideline #753 Not Applicable · Score: 0.0

Guideline #758 Not Applicable · Score: 0.0

Guideline #757 Not Applicable · Score: 0.0

Guideline #784 Not Applicable · Score: 0.0

Guideline #738 Adhered High · Score: 20.7

Guideline #766 Adhered High · Score: 17.3

Guideline #846 Adhered High · Score: 17.3

Product Images: 9 guidelines · Score: 75.9

These 9 ‘Product Images’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 9 elements necessary to create a high-performing ‘Product Images’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #740 Adhered High · Score: 27.6

Guideline #741 Adhered High · Score: 24.2

Guideline #747 Adhered High · Score: 24.2

Guideline #755 Adhered High · Score: 17.3

Guideline #744 Not Applicable · Score: 0.0

Guideline #745 Violated High · Score: -17.3

Guideline #752 Adhered High · Score: 17.3

Guideline #854 Not Applicable · Score: 0.0

Guideline #756 Violated High · Score: -17.3

Image Gallery UI: 10 guidelines · Score: 82.8

These 10 ‘Image Gallery UI’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 10 elements necessary to create a high-performing ‘Image Gallery UI’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #774 Adhered High · Score: 24.2

Guideline #771 Not Applicable · Score: 0.0

Guideline #776 Violated Low · Score: -12.1

Guideline #775 Adhered High · Score: 20.7

Guideline #779 Adhered High · Score: 17.3

Guideline #783 Issue Resolved · Score: 17.3

Guideline #781 Neutral · Score: 0.0

Guideline #773 Adhered Low · Score: 5.2

Guideline #778 Not Applicable · Score: 0.0

Guideline #777 Adhered High · Score: 10.4

Product Video & 360-View: 4 guidelines · Score: -17.3

These 4 ‘Product Video & 360-View’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 4 elements necessary to create a high-performing ‘Product Video & 360-View’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #759 Violated High · Score: -17.3

Guideline #770 Not Applicable · Score: 0.0

Guideline #760 Not Applicable · Score: 0.0

Guideline #761 Not Applicable · Score: 0.0

The 'Buy' Section: 9 guidelines · Score: -10.4

These 9 ‘The 'Buy' Section’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 9 elements necessary to create a high-performing ‘The 'Buy' Section’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #791 Adhered High · Score: 17.3

Guideline #795 Violated High · Score: -24.2

Guideline #820 Not Applicable · Score: 0.0

Guideline #798 Violated High · Score: -17.3

Guideline #817 Violated High · Score: -17.3

Guideline #792 Adhered High · Score: 17.3

Guideline #816 Issue Resolved · Score: 17.3

Guideline #793 Not Applicable · Score: 0.0

Guideline #789 Violated Low · Score: -3.5

Shipping, Returns, and Gifting: 7 guidelines · Score: 31.1

These 7 ‘Shipping, Returns, and Gifting’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 7 elements necessary to create a high-performing ‘Shipping, Returns, and Gifting’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #825 Adhered High · Score: 17.3

Guideline #826 Not Applicable · Score: 0.0

Guideline #803 Adhered High · Score: 24.2

Guideline #836 Neutral · Score: 0.0

Guideline #804 Not Applicable · Score: 0.0

Guideline #802 Violated High · Score: -10.4

Guideline #805 Not Applicable · Score: 0.0

Product Variations: 9 guidelines · Score: 13.8

These 9 ‘Product Variations’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 9 elements necessary to create a high-performing ‘Product Variations’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #848 Adhered High · Score: 24.2

Guideline #853 Adhered High · Score: 17.3

Guideline #849 Violated High · Score: -17.3

Guideline #837 Violated High · Score: -17.3

Guideline #851 Not Applicable · Score: 0.0

Guideline #800 Not Applicable · Score: 0.0

Guideline #850 Neutral · Score: 0.0

Guideline #852 Not Applicable · Score: 0.0

Guideline #856 Adhered High · Score: 6.9

Product Descriptions: 7 guidelines · Score: 51.8

These 7 ‘Product Descriptions’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 7 elements necessary to create a high-performing ‘Product Descriptions’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #841 Adhered High · Score: 24.2

Guideline #843 Violated High · Score: -24.2

Guideline #861 Adhered Low · Score: 8.6

Guideline #860 Adhered High · Score: 17.3

Guideline #845 Adhered High · Score: 17.3

Guideline #844 Adhered High · Score: 17.3

Guideline #847 Violated Low · Score: -8.6

Specifications Sheet: 5 guidelines · Score: 17.3

These 5 ‘Specifications Sheet’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 5 elements necessary to create a high-performing ‘Specifications Sheet’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #858 Adhered High · Score: 24.2

Guideline #840 Violated High · Score: -17.3

Guideline #835 Adhered High · Score: 17.3

Guideline #839 Violated High · Score: -17.3

Guideline #857 Adhered High · Score: 10.4

User Reviews: 13 guidelines · Score: 5.2

These 13 ‘User Reviews’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 13 elements necessary to create a high-performing ‘User Reviews’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #739 Adhered High · Score: 24.2

Guideline #743 Violated High · Score: -24.2

Guideline #750 Adhered Low · Score: 13.8

Guideline #749 Adhered High · Score: 20.7

Guideline #768 Violated Low · Score: -8.6

Guideline #742 Violated High · Score: -17.3

Guideline #748 Violated High · Score: -17.3

Guideline #785 Violated High · Score: -17.3

Guideline #767 Violated High · Score: -17.3

Guideline #765 Adhered Low · Score: 8.6

Guideline #746 Adhered High · Score: 17.3

Guideline #763 Adhered Low · Score: 5.2

Guideline #786 Adhered High · Score: 17.3

Auxiliary Content: 5 guidelines · Score: 20.7

These 5 ‘Auxiliary Content’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 5 elements necessary to create a high-performing ‘Auxiliary Content’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #807 Adhered High · Score: 24.2

Guideline #788 Adhered High · Score: 13.8

Guideline #787 Violated High · Score: -17.3

Guideline #806 Not Applicable · Score: 0.0

Guideline #769 Not Applicable · Score: 0.0

Cross-Sells & Cross-Navigation: 9 guidelines · Score: 31.1

These 9 ‘Cross-Sells & Cross-Navigation’ guidelines are only available in Baymard Premium — they are based on our large-scale Product Page UX research study, and outline the 9 elements necessary to create a high-performing ‘Cross-Sells & Cross-Navigation’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #810 Adhered High · Score: 17.3

Guideline #811 Violated High · Score: -24.2

Guideline #828 Neutral · Score: 0.0

Guideline #813 Adhered High · Score: 17.3

Guideline #814 Adhered High · Score: 17.3

Guideline #812 Violated High · Score: -17.3

Guideline #821 Neutral · Score: 0.0

Guideline #819 Issue Resolved · Score: 20.7

Guideline #827 Not Applicable · Score: 0.0

Cart & Checkout: 134 guidelines · Score: -9.6

Shopping Cart & “Added to Cart” Behavior: 10 guidelines · Score: 27.3

These 10 ‘Shopping Cart & “Added to Cart” Behavior’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 10 elements necessary to create a high-performing ‘Shopping Cart & “Added to Cart” Behavior’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #601 Issue Resolved · Score: 13.7

Guideline #600 Adhered High · Score: 13.7

Guideline #602 Issue Resolved · Score: 13.7

Guideline #603 Issue Resolved · Score: 13.7

Guideline #732 Neutral · Score: 0.0

Guideline #620 Violated Low · Score: -6.8

Guideline #623 Violated High · Score: -13.7

Guideline #622 Violated Low · Score: -6.8

Guideline #673 Not Applicable · Score: 0.0

Guideline #624 Neutral · Score: 0.0

Account Selection & Creation: 9 guidelines · Score: -32.8

These 9 ‘Account Selection & Creation’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 9 elements necessary to create a high-performing ‘Account Selection & Creation’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #637 Violated High · Score: -19.1

Guideline #652 Not Applicable · Score: 0.0

Guideline #639 Not Applicable · Score: 0.0

Guideline #677 Neutral · Score: 0.0

Guideline #638 Violated High · Score: -13.7

Guideline #653 Not Applicable · Score: 0.0

Guideline #676 Adhered High · Score: 13.7

Guideline #665 Violated High · Score: -13.7

Guideline #640 Not Applicable · Score: 0.0

Customer & Address Information: 12 guidelines · Score: 19.1

These 12 ‘Customer & Address Information’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 12 elements necessary to create a high-performing ‘Customer & Address Information’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #731 Violated Low · Score: -9.6

Guideline #566 Violated High · Score: -21.8

Guideline #567 Not Applicable · Score: 0.0

Guideline #565 Issue Resolved · Score: 19.1

Guideline #736 Adhered High · Score: 19.1

Guideline #561 Adhered High · Score: 13.7

Guideline #558 Adhered High · Score: 13.7

Guideline #557 Violated Low · Score: -6.8

Guideline #560 Not Applicable · Score: 0.0

Guideline #573 Not Applicable · Score: 0.0

Guideline #562 Not Applicable · Score: 0.0

Guideline #564 Violated High · Score: -8.2

Gifting Flow & Features: 5 guidelines · Score: -13.7

These 5 ‘Gifting Flow & Features’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 5 elements necessary to create a high-performing ‘Gifting Flow & Features’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #647 Not Applicable · Score: 0.0

Guideline #650 Violated High · Score: -13.7

Guideline #646 Not Applicable · Score: 0.0

Guideline #649 Not Applicable · Score: 0.0

Guideline #645 Not Applicable · Score: 0.0

Shipping & Store Pickup: 11 guidelines · Score: -38.2

These 11 ‘Shipping & Store Pickup’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 11 elements necessary to create a high-performing ‘Shipping & Store Pickup’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #544 Violated High · Score: -19.1

Guideline #547 Violated Low · Score: -8.2

Guideline #550 Adhered High · Score: 13.7

Guideline #543 Violated High · Score: -13.7

Guideline #548 Violated High · Score: -10.9

Guideline #549 Not Applicable · Score: 0.0

Guideline #632 Not Applicable · Score: 0.0

Guideline #633 Not Applicable · Score: 0.0

Guideline #631 Not Applicable · Score: 0.0

Guideline #634 Not Applicable · Score: 0.0

Guideline #635 Not Applicable · Score: 0.0

Payment Flow & Methods (Incl. Third-Party): 8 guidelines · Score: 1.4

These 8 ‘Payment Flow & Methods (Incl. Third-Party)’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 8 elements necessary to create a high-performing ‘Payment Flow & Methods (Incl. Third-Party)’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #590 Violated Low · Score: -6.8

Guideline #671 Neutral · Score: 0.0

Guideline #617 Not Applicable · Score: 0.0

Guideline #615 Violated High · Score: -13.7

Guideline #616 Not Applicable · Score: 0.0

Guideline #672 Adhered High · Score: 10.9

Guideline #586 Adhered High · Score: 10.9

Guideline #589 Not Applicable · Score: 0.0

Credit Card Form: 10 guidelines · Score: -15.0

These 10 ‘Credit Card Form’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 10 elements necessary to create a high-performing ‘Credit Card Form’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #582 Violated High · Score: -19.1

Guideline #594 Adhered High · Score: 19.1

Guideline #587 Violated Low · Score: -9.6

Guideline #583 Issue Resolved · Score: 13.7

Guideline #588 Violated High · Score: -13.7

Guideline #577 Adhered High · Score: 13.7

Guideline #584 Violated High · Score: -13.7

Guideline #591 Adhered Low · Score: 5.5

Guideline #585 Violated High · Score: -8.2

Guideline #664 Violated Low · Score: -2.7

Order Review: 5 guidelines · Score: -15.0

These 5 ‘Order Review’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 5 elements necessary to create a high-performing ‘Order Review’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #552 Adhered High · Score: 19.1

Guideline #556 Violated High · Score: -16.4

Guideline #545 Violated High · Score: -13.7

Guideline #551 Adhered Low · Score: 6.8

Guideline #553 Violated High · Score: -10.9

Order Confirmation & E-Mail: 4 guidelines · Score: -1.4

These 4 ‘Order Confirmation & E-Mail’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 4 elements necessary to create a high-performing ‘Order Confirmation & E-Mail’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #599 Violated High · Score: -13.7

Guideline #596 Neutral · Score: 0.0

Guideline #598 Adhered High · Score: 8.2

Guideline #597 Adhered Low · Score: 4.1

Form & Page Design: 10 guidelines · Score: 87.4

These 10 ‘Form & Page Design’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 10 elements necessary to create a high-performing ‘Form & Page Design’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #606 Adhered High · Score: 13.7

Guideline #611 Violated High · Score: -13.7

Guideline #687 Adhered High · Score: 10.9

Guideline #613 Adhered High · Score: 8.2

Guideline #607 Adhered High · Score: 8.2

Guideline #608 Adhered High · Score: 8.2

Guideline #730 Adhered High · Score: 19.1

Guideline #679 Issue Resolved · Score: 19.1

Guideline #668 Neutral · Score: 0.0

Guideline #733 Adhered High · Score: 13.7

User Interactions & Distractions: 10 guidelines · Score: 46.4

These 10 ‘User Interactions & Distractions’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 10 elements necessary to create a high-performing ‘User Interactions & Distractions’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #696 Issue Resolved · Score: 19.1

Guideline #707 Violated High · Score: -13.7

Guideline #609 Adhered High · Score: 13.7

Guideline #709 Not Applicable · Score: 0.0

Guideline #726 Issue Resolved · Score: 16.4

Guideline #714 Not Applicable · Score: 0.0

Guideline #727 Violated High · Score: -19.1

Guideline #713 Adhered High · Score: 16.4

Guideline #657 Adhered High · Score: 8.2

Guideline #699 Adhered High · Score: 5.5

Cross-Sells: 4 guidelines · Score: -9.6

These 4 ‘Cross-Sells’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 4 elements necessary to create a high-performing ‘Cross-Sells’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #581 Violated Low · Score: -9.6

Guideline #579 Issue Resolved · Score: 13.7

Guideline #580 Violated High · Score: -13.7

Guideline #578 Not Applicable · Score: 0.0

Validation Errors & Data Persistence: 10 guidelines · Score: -10.9

These 10 ‘Validation Errors & Data Persistence’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 10 elements necessary to create a high-performing ‘Validation Errors & Data Persistence’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #720 Violated High · Score: -21.8

Guideline #723 Violated High · Score: -21.8

Guideline #722 Violated High · Score: -19.1

Guideline #719 Adhered High · Score: 19.1

Guideline #721 Neutral · Score: 0.0

Guideline #718 Adhered Low · Score: 8.2

Guideline #625 Adhered High · Score: 16.4

Guideline #626 Adhered High · Score: 16.4

Guideline #627 Violated High · Score: -8.2

Guideline #629 Not Applicable · Score: 0.0

Field Labels & Microcopy: 7 guidelines · Score: 27.3

These 7 ‘Field Labels & Microcopy’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 7 elements necessary to create a high-performing ‘Field Labels & Microcopy’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #686 Violated Low · Score: -10.9

Guideline #683 Adhered High · Score: 19.1

Guideline #681 Adhered High · Score: 13.7

Guideline #685 Adhered High · Score: 10.9

Guideline #694 Violated High · Score: -13.7

Guideline #690 Not Applicable · Score: 0.0

Guideline #689 Adhered High · Score: 8.2

Field Design & Features: 8 guidelines · Score: -5.5

These 8 ‘Field Design & Features’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 8 elements necessary to create a high-performing ‘Field Design & Features’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #674 Violated High · Score: -19.1

Guideline #659 Violated High · Score: -13.7

Guideline #669 Issue Resolved · Score: 13.7

Guideline #660 Adhered High · Score: 13.7

Guideline #658 Violated High · Score: -8.2

Guideline #705 Not Applicable · Score: 0.0

Guideline #670 Neutral · Score: 0.0

Guideline #663 Issue Resolved · Score: 8.2

Default Values & Autocompletion: 8 guidelines · Score: -57.3

These 8 ‘Default Values & Autocompletion’ guidelines are only available in Baymard Premium — they are based on our large-scale Cart & Checkout UX research study, and outline the 8 elements necessary to create a high-performing ‘Default Values & Autocompletion’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #555 Violated High · Score: -19.1

Guideline #554 Violated High · Score: -16.4

Guideline #568 Violated High · Score: -16.4

Guideline #576 Violated High · Score: -13.7

Guideline #572 Not Applicable · Score: 0.0

Guideline #734 Not Applicable · Score: 0.0

Guideline #618 Not Applicable · Score: 0.0

Guideline #571 Adhered High · Score: 8.2

Accounts & Self-Service: 65 guidelines · Score: -272.9

Account Drop-Down: 7 guidelines · Score: 157.3

‘State of the Art’

These 7 ‘Account Drop-Down’ guidelines are only available in Baymard Premium — they are based on our large-scale Accounts & Self-Service UX research study, and outline the 7 elements necessary to create a high-performing ‘Account Drop-Down’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #871 Adhered High · Score: 46.3

Guideline #872 Adhered High · Score: 46.3

Guideline #876 Adhered Low · Score: 23.1

Guideline #877 Not Applicable · Score: 0.0

Guideline #886 Adhered High · Score: 55.5

Guideline #887 Neutral · Score: 0.0

Guideline #900 Violated Low · Score: -13.9

Account Dashboard: 6 guidelines · Score: -37.0

These 6 ‘Account Dashboard’ guidelines are only available in Baymard Premium — they are based on our large-scale Accounts & Self-Service UX research study, and outline the 6 elements necessary to create a high-performing ‘Account Dashboard’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #863 Not Applicable · Score: 0.0

Guideline #865 Adhered High · Score: 55.5

Guideline #866 Violated High · Score: -46.3

Guideline #870 Not Applicable · Score: 0.0

Guideline #873 Violated High · Score: -27.8

Guideline #874 Violated Low · Score: -18.5

Account Sign In: 6 guidelines · Score: 138.8

These 6 ‘Account Sign In’ guidelines are only available in Baymard Premium — they are based on our large-scale Accounts & Self-Service UX research study, and outline the 6 elements necessary to create a high-performing ‘Account Sign In’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #879 Adhered High · Score: 64.8

Guideline #882 Issue Resolved · Score: 46.3

Guideline #889 Violated High · Score: -55.5

Guideline #890 Issue Resolved · Score: 37.0

Guideline #903 Issue Resolved · Score: 46.3

Guideline #926 Not Applicable · Score: 0.0

'Your Account': Addresses, Payments, & Newsletters: 13 guidelines · Score: -120.3

These 13 ‘'Your Account': Addresses, Payments, & Newsletters’ guidelines are only available in Baymard Premium — they are based on our large-scale Accounts & Self-Service UX research study, and outline the 13 elements necessary to create a high-performing ‘'Your Account': Addresses, Payments, & Newsletters’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #864 Violated High · Score: -55.5

Guideline #888 Not Applicable · Score: 0.0

Guideline #891 Violated High · Score: -46.3

Guideline #893 Adhered Low · Score: 23.1

Guideline #896 Issue Resolved · Score: 27.8

Guideline #902 Adhered Low · Score: 13.9

Guideline #904 Adhered High · Score: 18.5

Guideline #908 Violated High · Score: -46.3

Guideline #911 Violated High · Score: -46.3

Guideline #916 Violated High · Score: -46.3

Guideline #917 Adhered High · Score: 18.5

Guideline #918 Violated High · Score: -27.8

Guideline #919 Adhered High · Score: 46.3

Orders & Order Tracking: 14 guidelines · Score: -208.1

These 14 ‘Orders & Order Tracking’ guidelines are only available in Baymard Premium — they are based on our large-scale Accounts & Self-Service UX research study, and outline the 14 elements necessary to create a high-performing ‘Orders & Order Tracking’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #878 Adhered High · Score: 37.0

Guideline #884 Violated High · Score: -18.5

Guideline #895 Not Applicable · Score: 0.0

Guideline #905 Not Applicable · Score: 0.0

Guideline #906 Violated Low · Score: -23.1

Guideline #907 Violated High · Score: -46.3

Guideline #909 Not Applicable · Score: 0.0

Guideline #910 Violated Low · Score: -9.3

Guideline #912 Not Applicable · Score: 0.0

Guideline #913 Not Applicable · Score: 0.0

Guideline #914 Violated High · Score: -46.3

Guideline #915 Violated High · Score: -27.8

Guideline #924 Violated High · Score: -46.3

Guideline #925 Violated High · Score: -27.8

Order Returns: 11 guidelines · Score: -148.0

These 11 ‘Order Returns’ guidelines are only available in Baymard Premium — they are based on our large-scale Accounts & Self-Service UX research study, and outline the 11 elements necessary to create a high-performing ‘Order Returns’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #867 Violated High · Score: -46.3

Guideline #868 Adhered High · Score: 46.3

Guideline #869 Violated Low · Score: -23.1

Guideline #894 Adhered Low · Score: 37.0

Guideline #897 Violated Low · Score: -23.1

Guideline #898 Adhered High · Score: 27.8

Guideline #899 Not Applicable · Score: 0.0

Guideline #920 Violated High · Score: -46.3

Guideline #921 Violated High · Score: -46.3

Guideline #922 Violated High · Score: -46.3

Guideline #927 Violated High · Score: -27.8

Account-Wide Navigation, Structure, & Information: 8 guidelines · Score: -55.5

These 8 ‘Account-Wide Navigation, Structure, & Information’ guidelines are only available in Baymard Premium — they are based on our large-scale Accounts & Self-Service UX research study, and outline the 8 elements necessary to create a high-performing ‘Account-Wide Navigation, Structure, & Information’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #875 Not Applicable · Score: 0.0

Guideline #880 Adhered Low · Score: 9.3

Guideline #881 Adhered High · Score: 46.3

Guideline #883 Violated High · Score: -64.8

Guideline #885 Not Applicable · Score: 0.0

Guideline #892 Violated Low · Score: -23.1

Guideline #901 Not Applicable · Score: 0.0

Guideline #923 Violated Low · Score: -23.1

Mobile E-Commerce: 144 guidelines · Score: 179.3

Mobile Homepage, Navigation, & Search: 12 guidelines · Score: -167.5

These 12 ‘Mobile Homepage, Navigation, & Search’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 12 elements necessary to create a high-performing ‘Mobile Homepage, Navigation, & Search’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #209 Neutral · Score: 0.0

Guideline #116 Violated High · Score: -31.5

Guideline #130 Violated High · Score: -23.6

Guideline #228 Violated High · Score: -19.7

Guideline #210 Neutral · Score: 0.0

Guideline #211 Violated High · Score: -31.5

Guideline #229 Adhered Low · Score: 13.8

Guideline #230 Violated High · Score: -27.6

Guideline #203 Violated High · Score: -23.6

Guideline #166 Violated High · Score: -27.6

Guideline #93 Violated High · Score: -15.8

Guideline #91 Adhered High · Score: 19.7

Mobile Product Lists: 15 guidelines · Score: 139.9

‘State of the Art’

These 15 ‘Mobile Product Lists’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 15 elements necessary to create a high-performing ‘Mobile Product Lists’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #90 Adhered High · Score: 31.5

Guideline #89 Adhered High · Score: 27.6

Guideline #79 Adhered High · Score: 23.6

Guideline #233 Adhered Low · Score: 9.9

Guideline #87 Adhered High · Score: 19.7

Guideline #76 Adhered High · Score: 23.6

Guideline #80 Violated High · Score: -19.7

Guideline #143 Neutral · Score: 0.0

Guideline #78 Not Applicable · Score: 0.0

Guideline #216 Not Applicable · Score: 0.0

Guideline #75 Neutral · Score: 0.0

Guideline #74 Violated High · Score: -7.9

Guideline #158 Issue Resolved · Score: 19.7

Guideline #162 Not Applicable · Score: 0.0

Guideline #102 Adhered High · Score: 11.8

Mobile Filtering & Sorting: 9 guidelines · Score: -17.7

These 9 ‘Mobile Filtering & Sorting’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 9 elements necessary to create a high-performing ‘Mobile Filtering & Sorting’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #212 Adhered High · Score: 27.6

Guideline #221 Violated High · Score: -27.6

Guideline #215 Violated Low · Score: -9.9

Guideline #222 Violated High · Score: -19.7

Guideline #68 Violated High · Score: -19.7

Guideline #232 Adhered High · Score: 19.7

Guideline #219 Adhered High · Score: 15.8

Guideline #213 Violated High · Score: -15.8

Guideline #142 Adhered High · Score: 11.8

Mobile Product Page Layouts: 6 guidelines · Score: 61.1

These 6 ‘Mobile Product Page Layouts’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 6 elements necessary to create a high-performing ‘Mobile Product Page Layouts’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #111 Adhered High · Score: 27.6

Guideline #144 Adhered High · Score: 23.6

Guideline #154 Violated Low · Score: -9.9

Guideline #149 Violated High · Score: -19.7

Guideline #234 Issue Resolved · Score: 19.7

Guideline #176 Adhered High · Score: 19.7

Mobile Product Descriptions, Specs, & Images: 13 guidelines · Score: 165.5

These 13 ‘Mobile Product Descriptions, Specs, & Images’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 13 elements necessary to create a high-performing ‘Mobile Product Descriptions, Specs, & Images’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #159 Violated High · Score: -23.6

Guideline #169 Violated High · Score: -15.8

Guideline #77 Adhered Low · Score: 5.9

Guideline #109 Adhered High · Score: 31.5

Guideline #110 Adhered High · Score: 27.6

Guideline #113 Adhered High · Score: 27.6

Guideline #112 Adhered High · Score: 15.8

Guideline #114 Adhered High · Score: 7.9

Guideline #148 Adhered High · Score: 27.6

Guideline #133 Adhered Low · Score: 9.9

Guideline #134 Not Applicable · Score: 0.0

Guideline #164 Adhered High · Score: 27.6

Guideline #163 Adhered High · Score: 23.6

Mobile Shopping Cart, Cost & Account: 10 guidelines · Score: 31.5

These 10 ‘Mobile Shopping Cart, Cost & Account’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 10 elements necessary to create a high-performing ‘Mobile Shopping Cart, Cost & Account’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #208 Adhered Low · Score: 9.9

Guideline #140 Violated High · Score: -11.8

Guideline #104 Adhered High · Score: 31.5

Guideline #103 Not Applicable · Score: 0.0

Guideline #107 Adhered High · Score: 23.6

Guideline #106 Adhered High · Score: 19.7

Guideline #127 Adhered High · Score: 19.7

Guideline #179 Violated High · Score: -27.6

Guideline #180 Violated Low · Score: -13.8

Guideline #185 Violated High · Score: -19.7

Mobile Checkout Information: 15 guidelines · Score: -43.3

These 15 ‘Mobile Checkout Information’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 15 elements necessary to create a high-performing ‘Mobile Checkout Information’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #120 Not Applicable · Score: 0.0

Guideline #108 Violated High · Score: -27.6

Guideline #168 Not Applicable · Score: 0.0

Guideline #167 Not Applicable · Score: 0.0

Guideline #139 Violated High · Score: -23.6

Guideline #150 Not Applicable · Score: 0.0

Guideline #205 Adhered High · Score: 19.7

Guideline #118 Adhered High · Score: 19.7

Guideline #194 Violated Low · Score: -9.9

Guideline #192 Adhered High · Score: 7.9

Guideline #196 Violated High · Score: -7.9

Guideline #182 Adhered High · Score: 11.8

Guideline #193 Violated High · Score: -11.8

Guideline #161 Violated High · Score: -15.8

Guideline #191 Violated Low · Score: -5.9

Mobile Form Field Usability: 18 guidelines · Score: -11.8

These 18 ‘Mobile Form Field Usability’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 18 elements necessary to create a high-performing ‘Mobile Form Field Usability’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #186 Violated High · Score: -27.6

Guideline #190 Violated High · Score: -23.6

Guideline #121 Violated Low · Score: -9.9

Guideline #183 Violated High · Score: -27.6

Guideline #189 Issue Resolved · Score: 19.7

Guideline #128 Violated High · Score: -15.8

Guideline #187 Adhered High · Score: 7.9

Guideline #165 Adhered High · Score: 7.9

Guideline #181 Not Applicable · Score: 0.0

Guideline #197 Not Applicable · Score: 0.0

Guideline #155 Violated High · Score: -31.5

Guideline #156 Adhered High · Score: 31.5

Guideline #160 Adhered Low · Score: 13.8

Guideline #157 Adhered Low · Score: 11.8

Guideline #145 Violated Low · Score: -11.8

Guideline #171 Adhered High · Score: 19.7

Guideline #184 Adhered High · Score: 15.8

Guideline #220 Adhered High · Score: 7.9

Touch Keyboards: 5 guidelines · Score: 0.0

These 5 ‘Touch Keyboards’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 5 elements necessary to create a high-performing ‘Touch Keyboards’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #71 Adhered High · Score: 23.6

Guideline #65 Violated High · Score: -23.6

Guideline #69 Adhered High · Score: 15.8

Guideline #70 Violated High · Score: -7.9

Guideline #66 Violated High · Score: -7.9

Mobile Validation Errors: 7 guidelines · Score: 21.7

These 7 ‘Mobile Validation Errors’ guidelines are only available in Baymard Premium — they are based on our large-scale Mobile E-Commerce UX research study, and outline the 7 elements necessary to create a high-performing ‘Mobile Validation Errors’ implementation.

Premium also shows you why Costco and 59 other top e-commerce sites perform as they do, and allow you to self-audit your own sites to see how your UX performance stacks up against theirs — learn more.

Guideline #119 Adhered High · Score: 27.6

Guideline #224 Violated High · Score: -31.5

Guideline #226 Adhered High · Score: 23.6

Guideline #225 Violated High · Score: -19.7

Guideline #223 Adhered High · Score: 15.8

Guideline #227 Adhered Low · Score: 5.9

Guideline #175 Not Applicable · Score: 0.0

All 60 sites were benchmarked across the 610 guidelines. During our evaluation, Costco’s e-commerce site adhered to 342 usability guidelines, violated 213, and scored neutral on 87 occasions, while a remaining 34 guidelines weren’t applicable.

See methodology to read up on the evaluation criteria and scoring algorithm.

To read each guideline and review your own sites, you’ll need to get full access.




Industry Comparison: Mass Merchant

Overall Costco ranks 60 when comparing their e-commerce UX performance against the 59 other major US e-commerce sites in the benchmark, and ranks 17 in the Mass Merchant industry.