Link Checker
This tool is connected to the internal API and ready to use.
Result
Link Checker
Link Checker
Checks links found on a public website. Internal pages are crawled within defined limits; discovered internal and external links are checked for availability, redirects and HTTP status.
Accepted input
A public domain, IP address or URL.
Examples
plus23.orghttps://tools.plus23.orghttps://help.plus23.org/
Checks
- Internal links
Links within the same domain are checked and used as the basis for the limited crawl. - External links
Links to other domains are checked for availability but are not crawled further. - HTTP status
Shows the HTTP status of each link and detects common errors such as 404 responses or server errors. - Redirects
Shows when a link redirects to a different final destination. - Restricted responses
HTTP 401, 403 and 429 responses are marked as restricted. Such links may still work in a browser when a provider blocks automated checks or bots.
Notes
The crawl is intentionally limited so large websites are not scanned completely. Private and reserved network targets are blocked for security reasons.
HTTP Status Codes
- 200 – OK
- The requested resource was reached successfully.
- 301 – Permanent Redirect
- The resource has permanently moved to another address.
- 302 – Temporary Redirect
- The resource temporarily redirects to another address.
- 401 – Unauthorized
- Access requires authentication.
- 403 – Forbidden
- The server refuses access. This may also be caused by bot protection or restrictions on automated checks.
- 404 – Not Found
- The linked resource was not found. The link may be outdated or incorrect.
- 429 – Too Many Requests
- The server is limiting frequent or automated requests. The link may still be reachable in a browser.
- 500 – Internal Server Error
- The target server encountered an internal error while processing the request.
- 502 – Bad Gateway
- A gateway or upstream server received an invalid response.
- 503 – Service Unavailable
- The target server is temporarily unavailable or overloaded.
- 504 – Gateway Timeout
- A gateway or upstream server did not receive a timely response from the target system.