| Critical | Elements with role=img must have an accessible name.
| WCAG 2.2 A F65
Section 508 (2017) A F65
| 2769 |
| Critical | Invalid value for CSS property.
background: from( background: to( background: from( background: from( background: to( | CSS Validation
| 1846 1846 1846 1870 1870
...
|
| Critical | Invalid CSS url() value.
background-image: data:image/svg+xml; | CSS Validation
| 1664 |
| Critical | Too many values for CSS property.
font-weight font-weight font-weight width width | CSS Validation
| 1420 1428 1436 1992 2003 |
| Critical | The header element must not appear as a
descendant of the header element.
| HTML5
| 2116 |
| Critical | A document must not include more than one visible main element.
| HTML5
| 2766 2812 2918 |
| Critical | The element header must not appear as a descendant of the header element.
| HTML5
| 2116 |
| Critical | Attribute attribution not allowed on element.
| HTML5
| 2598 |
| Critical | Element style not allowed as child element in this context.
| HTML5
| 2514 4240 |
| Very Important | Cannot use aria-label or aria-labelledby on elements and roles that prohibit naming.
Element role: generic Element role: generic | HTML5
ARIA 1.2
| 2129 2215 |
| Very Important | The button role is unnecessary for element button.
| HTML5
| 3257 3272 3308 3319 3330
...
|
| Very Important | Section lacks heading.
| HTML5
| 3513 |
| Important | Avoid specifying a new window as the target of a link with target=_blank.
| WCAG 2.2 AAA F22
| 2898 2901 2904 2913 2990
...
|
| Important | CSS flow relative margin-block- and margin-inline- properties are not supported by all browsers.
| Safari
iPhone/iPad
| 906 909 912 913 916
...
|
| Important | CSS flow relative padding-block- and padding-inline- properties are not supported by all browsers.
| Safari
iPhone/iPad
| 933 934 938 939 947
...
|
| Important | No meta description tag found. Use a description tag that accurately describes the contents of a web page.
| Yahoo
Google
Bing
| 1 |
| Important | Use at least a 12-point font on all web pages.
| Usability.gov 11:8
| 17 1674 1720 1788 1860
...
|
| Important | Use option groups when a drop down list has more than 10 items.
| Usability.gov 13:12
| 3473 |
| Least Important | Capitalize the first letter of the first word in lists.
| Usability.gov 12:9
| 3525 |