Duotify Link Checker

Check visible links, images, CSS images, video and audio. Highlight broken resources and filter a detailed on-page report.

Check the links and media on the page you are viewing, and find broken resources in a clear, filterable report. Duotify Link Checker checks visible hyperlinks, images, CSS background and decorative images, video URLs and audio URLs. Choose all resources or only external resources. Color-coded outlines help you find affected elements directly on the page. Review successful, broken and uncertain results, inspect HTTP status codes, follow redirect information, and export your results to CSV. Image checks also verify that the server returns an image content type, helping identify login pages or error pages disguised as images. Local page anchors are checked for missing targets. To start, open a web page, click the Duotify Link Checker toolbar icon, and select Check all resources or Check external resources. Use the report cards to filter results. You can cancel a check, close and reopen the report, or clear the page highlights. Checks run only when you start them. Resource requests go directly to the linked websites. The extension does not send reports or browsing history to the developer and does not use analytics or advertising. Checking requests do not include login cookies or the page referrer, so restricted or anti-hotlinking resources may behave differently from normal browsing. Works on ordinary HTTP and HTTPS pages. Browser-protected pages, embedded frames and content inside website shadow roots are not scanned. Successful results indicate URL and applicable image-type checks, not a guarantee of media playback or page content accuracy. Support and source code: https://github.com/doggy8088/duotify-link-checker