HTTP status code checker

What it shows

Every hop from the URL you enter to wherever it finally lands, with each one's status code. A URL that goes straight to a 200 shows one row; a URL behind several redirects shows every one of them in order, with the Location header that sent it to the next hop.

Reading the common codes

• 200 - OK, served directly.
• 301 - Moved Permanently. Search engines transfer ranking signal to the new location; this is the code to use for a lasting change.
• 302 / 307 - Temporary redirect; the old URL is expected to come back into use.
• 308 - Permanent redirect that also guarantees the request method is preserved (unlike 301, which some old clients turn a POST into a GET on).
• 404 - Not Found. 500-series - the server itself failed while trying to answer.

Redirect loops and chains

A chain of several redirects works but costs an extra round trip per hop, which is worth trimming to a single hop where the intermediate ones serve no purpose. A loop - a URL that eventually redirects back to itself - is reported as an error rather than followed forever.

Related tools

For the headers at the final destination, see the HTTP headers checker.