A broken-link check should show evidence, not just a red badge
Toolmera first reads the submitted page and extracts unique HTTP and HTTPS links from its server-returned HTML. It then checks a bounded sample of those destinations and reports the observed HTTP result, whether the link stayed on the same site, and whether the destination redirected.
That distinction matters. A link returning 404 or 410 is a strong broken-link signal; a 301 or 302 may still work but can deserve cleanup; a 403, 429 or timeout can mean the destination blocks automated requests rather than proving that a visitor cannot open it.
True broken signal404 or 410 response
Redirect signalDestination changes before the final response
ScopeBounded sample from one submitted page
Internal and external links fail for different reasons
Internal broken links often appear after URL migrations, deleted content, CMS changes or a typo in a navigation element. They are usually under your control and can create dead ends for users and crawlers.
External links are different: the destination belongs to another site and may disappear, block bots, move behind authentication or rate-limit automated checks. The report keeps internal and external links visible so you can prioritize fixes you actually control.
Use redirects as a cleanup signal, not automatically as an error
A redirect can be perfectly valid, especially after a planned migration. The problem is when an old URL remains linked everywhere even though the preferred destination has changed, creating unnecessary hops and making maintenance harder.
For a redirect that needs deeper inspection, open Toolmera Redirect Checker to see the chain. For one suspicious URL, HTTP Status Checker is the faster way to inspect its response without rescanning the whole source page.
Why this is intentionally not an unlimited site crawler
A full crawler can request thousands of URLs and needs crawl-delay, concurrency, robots and resource controls. This checker is deliberately narrower: it answers the practical question “which links on this page look broken or redirected?” with a bounded request budget.
That makes it useful for landing pages, navigation checks, freshly published articles and post-migration spot checks without turning a free utility into an uncontrolled crawl service.