Web Accessibility Checklist
This web accessibility checklist is based on the WCAG 2.0 Level A and AA standard. Many of the items in the checklist apply to webpages and web-based applications including electronic documents such as Microsoft Word, Adobe PDF; and other formats, and other products and services that are not specifically web-based.
Make content and controls perceivable by all users.
- Do images have alternative text? Alt Image Best Practice
- Does video have captions and does audio have a transcript?
- Does the web page or document include headings, lists, ARIA landmarks, and other semantic elements to communicate document structure?
- Is the tab order and read order logical and intuitive?
- Do form fields within web pages and documents have appropriately coded labels and prompts?
- Have you avoided using visual characteristics to communicate information (e.g., “click the circle on the right” or “required fields are in red”)?
- Does the interface have sufficient contrast between text color and background color?
- Does the content scale well when text is enlarged up to 200 percent?
Make content and controls operable by all users.
- Can all menus, links, buttons, and other controls be operated by keyboard, to make them accessible to users who are unable to use a mouse?
- Does the web page include a visible focus indicator so all users, especially those using a keyboard, can easily track their current position?
- Do features that scroll or update automatically (e.g., slideshows, carousels) have prominent accessible controls that enable users to pause or advance these features on their own?
- Do pages that have time limits include mechanisms for adjusting those limits for users who need more time?
- Have you avoided using content that flashes or flickers?
- Does the web page or document have a title that describes its topic or purpose? Providing an Informative Title
- Are mechanisms in place that allow users to bypass blocks of content e.g., a “skip to main content” link on a web page or bookmarks in a PDF?
- Does the website include two or more ways of finding content, such as a navigation menu, search feature, or site map?
- Is link text meaningful, independent of context?
Make content and user interfaces understandable to all users.
- Has the language of the web page or document (or individual parts of a multilingual document) been defined?
- Have you avoided links, controls, or form fields that automatically trigger a change in context?
- Does the website include consistent navigation?
- Do online forms provide helpful, accessible error and verification messages?
Make content robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
- Is the web page coded using valid HTML?
- Do rich, dynamic, web interfaces, such as modal windows, drop-down menus, slideshows, and carousels, include ARIA markup?
Web Accessibility Training Videos and Resources
Siteimprove provides articles, interactive tutorials and videos for each of the items in the checklist.
- New User Training: 13-minute video that highlights the basics of the Siteimprove Quality Assurance report.
- Siteimprove Video Tutorials: Video listing of the Quality Assurance and Accessibility modules in Siteimprove.
- On-demand Webinars, Guides, eBooks and Case Studies: Free resources from Siteimprove covering a range of topics from accessibility to content best practices.