To assess accessibility on your site, SF Web Accessibility recommend starting with these tools and resources:
WAVE is a free tool that generates an instant summary of potential accessibility issues on a page. We highly recommend you download the chrome extension.
Although these tools can help recognize accessibility pitfalls, it takes human evaluators to assess accessibility. After all, we recognize that there is no such thing as a perfect tool. There can sometimes be false positives when using a machine automated tool.
After you have scanned what you can with the automated tools, our team of accessibility experts can perform a hands-on evaluation to identify remaining accessibility problems, explain their impact on users, and suggest remediation strategies.