Free Security Headers Analyzer
Check website security headers and get improvement suggestions. Free, fast, and works entirely in your browser with no sign-up required.
Security Headers Analyzer
Analyze HTTP security headers with detailed recommendations, grading, and server configuration examples for Nginx, Apache, Express.js, and Next.js.
Security Headers Analyzer
Enter a URL to analyze its security headers
Frequently Asked Questions
What is the Security Headers Analyzer?
The Security Headers Analyzer is a free online tool that check website security headers and get improvement suggestions. It runs entirely in your browser with no installation or sign-up needed.
Is the Security Headers Analyzer free?
Yes, it is completely free with no registration required.
What headers does it check?
The Security Headers Analyzer checks for Content-Security-Policy, X-Frame-Options, HSTS, X-Content-Type-Options, Referrer-Policy, and other important security headers.
Is my data safe with this tool?
Absolutely. The Security Headers Analyzer processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Security Headers Analyzer work on mobile devices?
Yes, the Security Headers Analyzer is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Security Headers Analyzer in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
How do I use the Security Headers Analyzer?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Security Headers Analyzer works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free Security Headers Analyzer
Free Security Headers Analyzer is a free, browser-based tool in our Security Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.