Free tools
HTTP headers checker
What does your server tell browsers - and are the security headers on?
About this tool
With every page the server sends headers that set the status code, content type, caching and redirects. Security headers protect visitors from attacks such as framing your site maliciously or running foreign scripts.
The tool requests your home page with a HEAD request without following redirects, and shows the headers as-is with a checklist of the six most important security headers.
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Frequently asked questions
What do 301 or 302 mean?
A permanent or temporary redirect to another address shown in the Location header.
How do I add security headers?
Through .htaccess, server settings or a WordPress security plugin - our support team can help.