All tools
Security Header Analyser
Paste the response headers from any site and this reports which protections are present, which are weak, and which are missing. It analyses what you paste — it does not fetch the site, which is what keeps it from being a scanner with our name on it.
Nothing leaves your browser
This tool runs entirely in the page you are looking at. What you enter is never sent to us or to anyone else, is not stored, and disappears when you close the tab. It also never fetches anything on your behalf. It works only on what you give it.
Input
Nothing analysed yet. Paste something above and press the button.
