SEO Toolbox

HTTP Headers Checker

Every response header, with the security ones graded.

Also in Server & Headers

HTTP Status Code CheckerCheck many URLs at once and see status, redirects and timing.Needs a list of URLsRedirect CheckerTrace the full redirect chain hop by hop, and spot loops.Needs a page URLRobots.txt TesterRead a site robots.txt and test whether a given URL is crawlable.Needs a domain nameXML Sitemap CheckerFind a sitemap, count its URLs and spot-check that they resolve.Needs a domain name
HTTP Headers Checker — SEO Toolbox