• Each information-carrying image has no text alternative
• Each decorative image is not correctly ignored by assistive technologies
• Each frame has no title
• For each frame with a title, the title is not relevant
• Each prerecorded time-based media lacks a transcript or audio description when necessary
• Each synchronized prerecorded time-based media lacks captions when necessary
• Each prerecorded media lacks synchronized audio description when necessary
• Each time-based media is not clearly identifiable
• Each non-time-based media lacks an alternative when necessary
• Each time-based and non-time-based media is not compatible with assistive technologies
• For each data table, no technique is used to associate cells with their headers
• Each link is not explicit
• In each web page, each link has no label
• In each web page, status messages are not correctly conveyed by assistive technologies
• For each web page, the generated code is not valid according to the specified type
• In each web page, tags are used only for presentation
• In each web page, information is not structured using appropriate headings
• In each web page, document structure is not coherent
• In each web page, content is not understandable when styles are disabled
• In each web page, CSS declarations for background and font colors are not correctly used
• In each web page, non-obvious links are not visible compared to surrounding text
• In each web page, information is conveyed only by shape, size, or position
• In each web page, information conveyed by shape, size, or position is not implemented meaningfully
• For each web page, content cannot be presented without loss of information or functionality and requires scrolling
• In each web page, text spacing properties cannot be redefined without content or functionality loss
• In each web page, additional content on focus or hover is not controllable by the user
• In each web page, additional CSS-only content is not visible via keyboard or pointing device
• Each form field has no label
• Each label associated to a form field is not relevant
• In each form, input validation has no suggestions to correct errors
• The site map page is not relevant
• In each page set, the site map page is not accessed consistently
• In each page, functions needing complex gestures are not accessible via simple gestures

• For each information-carrying image with a text alternative, is this alternative relevant (excluding special cases)?
• Does each information-carrying image have a detailed description, if necessary?
• For each information-carrying image with a detailed description, is the description relevant?
• Is each text image carrying information replaced with styled text when possible (excluding special cases)?
• For each prerecorded time-based media with a transcript or an audio description, are they relevant (excluding special cases)?
• For each prerecorded synchronized time-based media with captions, are those captions relevant?
• For each prerecorded time-based media with a synchronized audio description, is it relevant?
• For each non-time-based media with an alternative, is this alternative relevant?
• Does each complex data table have a summary?
• For each complex data table with a summary, is the summary relevant?
• For each layout table, is the linearized content understandable?
• For each data table with a title, is the title correctly associated with the table?
• For each data table with a title, is the title relevant?
• Does each layout table avoid using data table elements? Is this rule respected?
• Is each script compatible with assistive technologies, if necessary?
• In each web page, is every language change indicated in the source code (excluding special cases)?
• In each web page, does every link have a label?
• In each web page, are direction changes indicated?
• In each web page, is every list correctly structured?
• For each web page, are hidden contents skipped by assistive technologies as intended?
• In each form, does each group of related fields have a legend?
• In each form, is each legend associated with a related group relevant?
• Can the purpose of form fields be inferred to facilitate autofill with user data?
• Can common content areas (header, main navigation, main content, footer, search) be reached or avoided consistently across pages?
• In each web page, is there a skip link or quick access link to the main content (excluding special cases)?
• In each web page, are single-key shortcuts (letters, numbers, punctuation, symbols) controllable by the user?
• In each web page, are additional contents triggered by hover, focus, or activation accessible via keyboard, if necessary?
• For each web page, does the user have control over time limits affecting content (excluding special cases)?
• In each web page, does each downloadable document have an accessible version, if necessary?
• For each accessible version of a document, does it provide the same information?
• In each web page, are sudden brightness changes or flashing effects correctly used?
• In each web page, is moving or blinking content controllable by the user?
• In each web page, can actions triggered by a single pointer on screen be undone (excluding special cases)?
• In each web page, are functions requiring device motion achievable in alternative ways (excluding special cases)?

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