| Critical | Use the lang attribute to identify the language of the page.
| WCAG 2.0 A 3.1.1
Section 508 (2017) A 3.1.1
| 1 |
| Critical | img elements must have an alt attribute.
| WCAG 2.0 A F65
Section 508 (2017) A F65
| 2705 |
| Critical | Removing the underline from links makes it hard for color-blind users to see them.
| WCAG 2.0 A F73
Section 508 (2017) A F73
| 2722 |
| Critical | Customized built-in elements using the is attribute are supported by very few browsers.
| Internet Explorer
Edge
Firefox
Safari
iPhone/iPad
Android
| 184 1360 1363 1366 1386 |
| Critical | HTML imports are only supported in a few browsers.
| Edge
Internet Explorer
Firefox
Safari
Android
iPhone/iPad
| 85 |
| Critical | SVG images are not supported by older browsers.
| Android ≤ 2
| 214 1416 1576 1809 2075
...
|
| Critical | The template element is not supported by older browsers.
| Internet Explorer
Safari ≤ 7
iPhone/iPad ≤ 7
| 1566 1804 1805 2654 2659
...
|
| Critical | Avoid doorway pages created just for search engines or other cookie cutter approaches such as affiliate programs with little or no original content. This page looks suspicious because it is full of text and keywords, but has very few on-site links.
| Google
Yahoo
| 1 |
| Critical | CSS Validation Error.
| CSS Validation
| 185 185 1367 1387 1387
...
|
| Critical | Element script must not have attribute
defer unless attribute src is
also specified.
| HTML5
| 2729 |
| Critical | Element script must not have attribute
async unless attribute src or type=module is
also specified.
| HTML5
| 2699 |
| Critical | The element link must not appear as a descendant of the body element
unless the link element has an
itemprop attribute or has a
rel attribute whose value is one of
dns-prefetch,
modulepreload,
pingback,
preconnect,
prefetch,
preload,
prerender, or
stylesheet.
| HTML5
| 85 2513 2514 2515 2516
...
|
| Critical | Attribute :by-polymer-bundler not allowed on element.
| HTML5
| 86 |
| Critical | Bad value for attribute href.
Bad value 'https://fonts.googleapis.com/css?family=Noto+Sans|'. Unexpected character |Noto+Serif in query string | HTML5
| 38 48 |
| Critical | Element style not allowed as child element in this context.
| HTML5
WCAG 2.0 A 4.1.1
Section 508 (2017) A 4.1.1
| 181 |
| Critical | Duplicate id - the same ID is used on more than one element.
`id=book`. | HTML5
WCAG 2.0 A 4.1.1
Section 508 (2017) A 4.1.1
| 305 372 1462 2066 2149
...
|
| Critical | Saw <!-- within a comment. Probable cause : Nested comment (not allowed).
| HTML5
| 83 |
| Critical | An img element must have an
alt attribute, except under certain
conditions. For details, consult guidance on
providing text alternatives for images.
| HTML5
| 2705 |
| Critical | Offer an HTML site map to your users with links that point to the important parts of your site. Links embedded in menus, list boxes, and similar elements are not accessible to web crawlers unless they appear in your site map. If the site map is larger than 100 or so links, you may want to break the site map into separate pages.
| Google
Bing
| 1 |
| Very Important | Ensure that text and background colors have enough contrast.
The text color to background color contrast ratio is:
2.78 with
color: rgb(206,132,0);background-color: rgb(245,245,245);font-size: 14.04pt;font-weight: 700.00;
2.78 with
color: rgb(206,132,0);background-color: rgb(245,245,245);font-size: 12.00pt;font-weight: 400.00;
2.78 with
color: rgb(206,132,0);background-color: rgb(245,245,245);font-size: 12.00pt;font-weight: 400.00;
2.78 with
color: rgb(206,132,0);background-color: rgb(245,245,245);font-size: 14.04pt;font-weight: 700.00;
2.78 with
color: rgb(206,132,0);background-color: rgb(245,245,245);font-size: 14.04pt;font-weight: 700.00; | WCAG 2.0 AA 1.4.3
Section 508 (2017) AA 1.4.3
| 2714 2714 2715 2722 2725
...
|
| Very Important | CSS custom properties are not supported by some browsers.
| Internet Explorer
| 185 1361 1364 1367 1387
...
|
| Very Important | The CSS transform: property is not supported by some older browsers.
| Safari ≤ 8
| 76 |
| Very Important | This page has no doctype which triggers quirks mode in IE, Firefox and most other browsers. This means pages may look different in different browsers.
| Internet Explorer
Edge
Firefox
Safari
Opera
Chrome
iPhone/iPad
Android
| 1 |
| Very Important | Avoid underlined text - people will click on it and think it's a broken link.
| Usability.gov 10:4
| 76 |
| Very Important | Omitting img width or height attributes means page text jumps about as images load.
| Usability.gov 14:3
| 2705 |
| Very Important | Provide a search option on each page of content-rich web sites.
| Usability.gov 17:4
| 1 |
| Very Important | Start tag seen without seeing a doctype first. Expected <!DOCTYPE html>.
| HTML5
| 1 1 |
| Information | Property or at-rule is vendor specific.
-webkit-font-smoothing -webkit-font-smoothing | CSS Validation
| 1387 1387 2642 |
| Information | Spell checking was not enabled for this scan.
|
| 1 |