Web Tools support

Tips for the most common issues across the toolbox — link checker, GUID finder, color picker, CSS inspector, and more.

Troubleshooting

Frequently asked questions

Some servers block HEAD requests, return 403 to non-browser user agents, or rate-limit bursts. Try lowering the concurrency in the popup and increasing the timeout. False positives are listed at the bottom of the CSV export so you can re-check them manually.

Still stuck?

Send a note with the URL of the page where the issue happens, your browser version, and which tool you were using. That gets us to a fix faster.