Siteimprove Accessibility Checker (Chrome Extension)

What is the Siteimprove Accessibility Checker for Chrome?

The Siteimprove Accessibility Checker is a Google Chrome extension that evaluates a single web page directly within your browser window for web accessibility success criteria as defined by W3C WCAG 2.0 standards. No subscription or setup is needed. You can check any web page you want – and it doesn’t even have to be online.

Why should I check the Accessibility of my website?

Web Accessibility is about allowing people with and without disabilities to have access to the information they want and need from your website. With reports of 1 in 5 people claiming some sort of disability, 20% of the population is just too large of a group to ignore. 

How do I use the Siteimprove Accessibility Checker?

First time only:

  1. Install the Siteimprove Accessibility Checker from the Chrome Web Store
  2. Open the extension by clicking the light blue Siteimprove logo in the right side of the top bar in Chrome
  3. Fill in your information and press the "Get started" button

Every time thereafter:

  1. Go to the web page you want to check
  2. Open the extension by clicking the light blue Siteimprove logo in the right side of the top bar in Chrome
  3. The extension opens up on the left side of your browser, allowing you to investigate the detected accessibility issues.
  4. The red number next to the extension logo in the top bar of the browser indicates the number of issues found on that page.

What does the Siteimprove Accessibility Checker check for?

It checks against the three conformance levels defined in the Web Content Accessibility Guidelines (WCAG) 2.0. But keep in mind: No automated tool can tell you if your page is fully compliant because certain criteria require human testing efforts. The Siteimprove Accessibility Checker makes accessibility issues understandable and facilitates manual evaluation.

Compared to the full Siteimprove Accessibility crawling service, there might be issues that the Siteimprove Accessibility Checker for Chrome cannot check for. Currently one check, namely "Wrong use of time limit" under 2.2.1 Timing Adjustable is not included in our extension because all testing is done directly in the browser without accessing any server behind the website.

What does “A/AA/AAA Conformance level” mean?

The Web Content Accessibility Guidelines (WCAG) 2.0 works with three different conformance levels: A, AA and AAA.

  • Level A is the minimum level of conformance in WCAG 2.0. For Level A conformance, the web page satisfies all the Level A success criteria, or a conforming alternate version is provided.
  • Level AA is the medium level of conformance in WCAG 2.0. For Level AA conformance, the web page satisfies all the Level A and Level AA success criteria, or a Level AA conforming alternate version is provided.
  • Level AAA is the highest level of conformance in WCAG 2.0. For Level AAA conformance, the web page satisfies all the Level A, Level AA and Level AAA success criteria, or a Level AAA conforming alternate version is provided. It is not recommended that Level AAA conformance be required as a general policy for entire sites because it is not possible to satisfy all Level AAA success criteria for some content.

What are Errors, Warnings and Reviews?

These are Siteimprove’s own severity categorization, indicating the appropriate actions to the different accessibility issues:

  • Errors: Issues that can be tested automatically and where the instances are with certainty violations the Web Content Accessibility Guidelines (WCAG) 2.0.
  • Warnings: Issues that can be tested automatically and where the instances are violations of accessibility best practices.
  • Reviews: Issues that cannot be checked automatically and require manual inspection to determine if each item lives up to the specific success criterion.

Why are there Editor/Webmaster/Developer roles on issues?

Your website's accessibility effort is most likely a team effort involving multiple people with different roles and responsibilities. By assigning roles to issues, we are giving you an indiciation which team member might be the right one to fix the respective issue type. Depending on your organization's web development and management setup, the division of responsibilities might however be different.

If you are using the full Siteimprove Accessibility service instead of the Siteimprove Accessibility Checker, you will be able to re-assign issues to different roles in order to perfectly match your organization's setup.

How can Siteimprove Accessibility Checker users benefit from the full Siteimprove Accessibility service?

Already a Siteimprove Accessibility Checker user? These are the additional benefits you'll get from the full Siteimprove Accessibility service:

  • Crawl your entire website for a comprehensive accessibility health check 
  • Monitor all your pages continuously in one place
  • Prioritize the most severe issues and focus on the most important pages
  • Prove your accessibility progress and improvements over time
  • Re-assign accessibility issues to match your organizational roles
  • Create your own custom accessibility policies
  • Schedule custom reports that regularly inform all relevant stakeholders

Learn more about the full Siteimprove Accessibility service.

How can Siteimprove Accessibility customers benefit from the Siteimprove Accessibility Checker?

Already a Siteimprove Accessibility customer? Here is why you should not miss out on our Siteimprove Accessibility Checker for Chrome:

  • Check pages directly in your browser without giving anyone access to the content of the tested page
  • Check pages that require a login on the fly (e.g. intranets or other firewall-protected pages)
  • Check page stages and content that is only activated on user input (e.g. multi step forms)
  • Check dynamic content such as JavaScript with immediate results
  • Check non-public pages (e.g. during development)

Want to learn more about Accessibility?

Get more helpful resources by checking out the accessibility section on our website or simply book a demo including a free accessibility check-up.