| 1 | 5 | www.skype.com | 1 | 16 | color-contrast | Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds |  |
| 2 | 7 | teams.microsoft.com | 2 | 1 | aria-progressbar-name | Ensure every ARIA progressbar node has an accessible name | |
| 1 | region | Ensure all page content is contained by landmarks |  |
| 3 | 10 | meet.google.com | 2 | 32 | color-contrast | Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds | |
| 6 | listitem | Ensure <li> elements are used semantically | |
| 4 | 6 | slack.com | 3 | 7 | color-contrast | Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds | |
| 1 | region | Ensure all page content is contained by landmarks | |
| 1 | skip-link | Ensure all skip links have a focusable target | |
| 5 | 9 | line.me | 3 | 6 | color-contrast | Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds | |
| 1 | empty-heading | Ensure headings have discernible text |  |
| 2 | link-name | Ensure links have discernible text | |
| 6 | 1 | web.whatsapp.com | 5 | 1 | document-title | Ensure each HTML document contains a non-empty <title> element | |
| 2 | image-alt | Ensure <img> elements have alternative text or a role of none or presentation |  |
| 1 | landmark-one-main | Ensure the document has a main landmark | |
| 1 | meta-viewport-large | Ensure <meta name="viewport"> can scale a significant amount | |
| 1 | region | Ensure all page content is contained by landmarks | |
| 7 | 3 | www.messenger.com | 5 | 3 | color-contrast | Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds | |
| 1 | landmark-banner-is-top-level | Ensure the banner landmark is at top level | |
| 1 | landmark-contentinfo-is-top-level | Ensure the contentinfo landmark is at top level | |
| 1 | landmark-no-duplicate-main | Ensure the document has at most one main landmark | |
| 1 | landmark-unique | Ensure landmarks are unique | |
| 8 | 8 | www.wechat.com | 6 | 1 | html-lang-valid | Ensure the lang attribute of the <html> element has a valid value | |
| 2 | image-alt | Ensure <img> elements have alternative text or a role of none or presentation | |
| 1 | landmark-one-main | Ensure the document has a main landmark | |
| 4 | link-name | Ensure links have discernible text | |
| 1 | page-has-heading-one | Ensure that the page, or at least one of its frames contains a level-one heading | |
| 8 | region | Ensure all page content is contained by landmarks | |
| 9 | 2 | telegram.org | 9 | 24 | color-contrast | Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds | |
| 1 | empty-heading | Ensure headings have discernible text | |
| 1 | heading-order | Ensure the order of headings is semantically correct | |
| 1 | html-has-lang | Ensure every HTML document has a lang attribute | |
| 11 | image-alt | Ensure <img> elements have alternative text or a role of none or presentation | |
| 1 | landmark-one-main | Ensure the document has a main landmark | |
| 1 | link-name | Ensure links have discernible text | |
| 1 | page-has-heading-one | Ensure that the page, or at least one of its frames contains a level-one heading | |
| 9 | region | Ensure all page content is contained by landmarks | |
| 10 | 4 | zoom.us | 9 | 1 | aria-allowed-attr | Ensure an element's role supports its ARIA attributes | |
| 21 | button-name | Ensure buttons have discernible text | |
| 29 | color-contrast | Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds | |
| 1 | heading-order | Ensure the order of headings is semantically correct | |
| 14 | image-alt | Ensure <img> elements have alternative text or a role of none or presentation | |
| 1 | landmark-one-main | Ensure the document has a main landmark | |
| 1 | landmark-unique | Ensure landmarks are unique | |
| 14 | link-name | Ensure links have discernible text | |
| 15 | region | Ensure all page content is contained by landmarks | |
