What to prepare
The public URL, domain, IP address, record type, or audit option requested by the checker.
The request was successful and the server returned the requested content.
The resource has permanently moved to a new URL.
The requested resource could not be found on the server.
The server encountered an unexpected condition.
HTTP status codes describe how a server handled a request: 2xx usually means success, 3xx a redirect, 4xx a client-side problem and 5xx a server failure. Headers add context about caching, content and routing.
The public URL, domain, IP address, record type, or audit option requested by the checker.
A point-in-time observation from the public target and the checks available on this page.
A practical way to use it is to run a fresh diagnostic after a hosting, DNS, certificate, redirect, content or performance change. Start with a representative input, inspect the first result, then adjust one setting at a time if you need a different outcome.
The checker uses the public target you enter to make a diagnostic request. Do not place credentials or private access tokens in a URL.
Verify SSL certificate validity and expiry date.
CheckFind DNS records for any domain name.
LookupTrace URL redirects and final destination.
TraceCheck domain registration and expiry dates.
CheckScan a page and find broken internal or external links.
ScanEnter the website URL you want to check.
We send an HTTP request to the server.
Receive status code, headers, and response details.
See the results and server information instantly.
A 3-digit code returned by a server indicating the result of an HTTP request — 200 means success, 404 means not found, etc.
A 301 indicates the URL has permanently moved. The browser will follow the new location automatically.
The page you requested does not exist on the server. Check the URL for typos or update internal links.
Server-side issues — misconfigurations, crashed services, or unhandled exceptions in code.
Yes — both HTTP and HTTPS URLs are fully supported.