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Accessibility checking

Rocket Validator looks for accesibility violations on your pages using the axe-core accessibility engine, hosted on our own servers and integrated into our web crawler. You don't need to buy an additional license, everything's already included in your Pro account at Rocket Validator.

List of accessibility rules checked

These are the rules that will be checked on every page of your sites. Click on each to get an extended description.

wcag2a   wcag211   accesskey attribute value must be unique
wcag2a   wcag111   section508   section508a   Active <area> elements must have alternate text
wcag2a   wcag411   ARIA attributes must conform to valid names
wcag2a   wcag411   ARIA attributes must conform to valid values
wcag2a   wcag411   ARIA roles used must conform to valid values
wcag2a   wcag122   section508   section508a   <audio> elements must have a captions track
wcag2a   wcag412   section508   section508a   Buttons must have discernible text
wcag2a   wcag411   Certain ARIA roles must be contained by particular parents
wcag2a   wcag411   Certain ARIA roles must contain particular children
wcag2a   wcag131   Checkbox inputs with the same name attribute value must be part of a group
wcag2a   wcag131   Data tables should be marked up properly
wcag2a   wcag131   <dl> elements must only directly contain properly-ordered <dt> and <dd> groups, <script> or <template> elements
wcag2a   wcag242   Documents must have <title> element to aid in navigation
wcag2a   wcag131   <dt> and <dd> elements must be contained by a <dl>
wcag2a   wcag411   Elements must only use allowed ARIA attributes
best-practice   Elements should not have tabindex greater than zero
wcag2a   wcag332   wcag131   section508   section508n   Form elements must have labels
wcag2a   wcag241   Frames must have unique title attribute
wcag2a   wcag131   Headings must not be empty
wcag2a   wcag311   <html> element must have a valid lang attribute
wcag2a   wcag411   id attribute value must be unique
wcag2a   wcag111   section508   section508a   Image buttons must have alternate text
wcag2a   wcag111   section508   section508a   Images must have alternate text
wcag2a   wcag131   <li> elements must be contained in a <ul> or <ol>
wcag2a   wcag111   wcag412   section508   section508a   Links must have discernible text
wcag2a   wcag111   <object> elements must have alternate text
wcag2a   wcag241   section508   section508o   Page must have means to bypass repeated blocks
wcag2a   wcag131   Radio inputs with the same name attribute value must be part of a group
wcag2a   wcag2aaa   wcag221   wcag224   wcag325   Timed refresh must not exist
wcag2a   wcag131   <ul> and <ol> must only directly contain <li>, <script> or <template> elements
wcag2aa   wcag125   section508   section508a   <video> elements must have an audio description track
wcag2a   wcag122   wcag123   section508   section508a   <video> elements must have captions
wcag2aa   wcag144   Zooming and scaling must not be disabled
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