Why do some URLs show 0?

The target could not be reached: DNS failure, connection refused or a timeout. These are usually dead domains rather than missing pages.

Why is the list capped at 25?

Each URL is checked live in parallel. The cap keeps runs fast and keeps the tool polite toward the sites being checked.

Does a 301 in the list mean the link is broken?

No, it means the URL works but redirects. For links on your own site, update the href to the final URL and save every visitor a hop.

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HTTP status code checker

Paste up to 25 URLs, one per line. The tool requests each one and reports the status code, so you can see redirects, missing pages and server errors at a glance.

Capped at 25 URLs per run. Deeper link checks belong to the broken link checker.

Reading the codes

Class	Meaning
2xx	Success. The page serves.
3xx	Redirect. One hop to a 200 is fine; chains cost crawl budget.
4xx	Client error. 404 means gone, 410 means gone permanently.
5xx	Server error. Repeated 5xx responses make crawlers come back less often.

Status 0 means the target could not be reached at all: DNS failure, refused connection or timeout.

HTTP status code checker

Reading the codes

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