This Test version performs accessibility validation against the WCAG 2.1 and US Section 508 guidelines and HTML validation against the published W3C specifications. But it only outputs a summary. Get the Basic or Pro versions to also perform CSS validation, spelling and link checking, to see the detailed results, and to validate your entire website in one go.
Just because you can use your website doesn't mean that someone with a disability can. You should ensure your sites conform to the WCAG 2.1 Accessibility Guidelines, (and that also means strictly validated HTML), or US Section 508 standard, if you want your site to be accessible to all.
||Java 8.0 or later