HTTP Security Headers Checker
Analyze your website's HTTP response headers for essential security protections.
Only test websites you own or have permission to check.
What this tool does?
This tool checks if a website is sending proper HTTP security headers in its responses. These headers protect against attacks like clickjacking, MIME sniffing, and insecure content loading.
Key Features
* Simulates HTTP header scanning
* Shows presence and values of common security headers
* Quick, frontend‑only tool
* Copyable report and reset option
* Modern responsive design
How to use?
1. Enter your website’s full URL
2. Click “Scan Website”
3. Review the headers displayed in the result table
4. Use "Copy Report" to export the findings, or "Reset" to start over
Creative Use Cases:
* For developers checking header setups
* Cybersecurity professionals during audits
* Technical writers documenting security setups
* Teaching web security basics to students
Tool Description
HTTP Security Headers Checker is a free web‑based tool that helps you test the presence of key security headers on your site like CSP, XFO, and HSTS. It provides instant analysis to help harden your server against common web attacks.
FAQs
1. Do I need a backend server for this tool?
No. The checker runs entirely in the browser using simulated data.
2. Can I scan any website?
Only scan sites you own or have permission to test. This tool does not perform real network requests.
3. Which headers are checked?
Content‑Security‑Policy, X‑Frame‑Options, X‑Content‑Type‑Options, Strict‑Transport‑Security, Referrer‑Policy, Permissions‑Policy, and more can be added.
4. How accurate is the report?
Since the tool uses dummy data for demonstration, it shows typical header values. For real checks, use a server‑side scanner.
5. Is the data saved anywhere?
No. All processing is client‑side; nothing is stored or transmitted.
6. How can I customize the checker?
You can edit the JavaScript simulatedHeaders array to add or modify header entries.