PageKiwi for Drupal beta
A free module that checks your Drupal site from the inside: broken links, images with no alt text, accessibility problems, and settings that hide problems or leave you open to attack. In plain English, with where to click to fix each one.
Free. For Drupal 10.3 and 11. It's only in your admin area, under Reports, not on your public site. It runs only when you press Check my site and sends nothing to us; to test links to other websites, your server asks those pages. What changed in each version.
What it checks
- Broken links
Links to pages that don't exist on your site, dead links to other websites, leftover test addresses like localhost, and phone and email links that don't work.
- Accessibility
Images with no alternative text, links with no words or just "click here", a second main heading, headings that skip a level.
- Images and facts
Images with no alternative text, images that don't load, heavy photos, and pages that give different phone numbers or emails.
- Settings
Maintenance mode left on, error messages shown to visitors, scheduled tasks (cron) not running, updates waiting, the default Drupal icon, anyone able to sign up, a user called "admin", no https.

The module on our Drupal 11 test site, which has a page full of mistakes on purpose. How to install and use it, on Drupal 10 and 11.
What it can't do
It reads your content and settings, not the finished page, so it can't judge color contrast or what your theme adds. For that, run Full Check on your home page, or use PageKiwi for Chrome. Automated checks find many common problems, not all of them: PageKiwi helps you get closer to accessibility rules like the ADA and WCAG, but it can't promise your site meets them.