Secure Header Checker
FreeAudit HTTP security headers of any website
About Secure Header Checker
Many sites ship with HTTPS but skip the response headers that actually harden a browser session against clickjacking, content sniffing, and protocol downgrade attacks. This Secure Header Checker fetches a URL and audits its security headers, telling you which protections like Strict-Transport-Security, X-Content-Type-Options, X-Frame-Options, and Content-Security-Policy are present and which are missing.
Enter a site and ToolHub by Codaiman reports on each security header and flags the gaps, giving you a clear checklist of what to add. It is free, runs in your browser, and needs no signup, so you can audit your own deployments, double-check a third-party service, or sanity-test a staging environment before launch without installing anything or sharing credentials.
Common uses
- Auditing your site's security headers before a production launch
- Confirming HSTS and frame protections are set after a config change
- Comparing header coverage between staging and production
- Building a remediation checklist for a security review
- Checking whether a vendor's site follows header best practices
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- Industry-standard algorithms
- No data retention
- OWASP-aligned checks
FAQ
Which headers does it check for?
It looks for common protections such as Strict-Transport-Security, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and Content-Security-Policy, reporting which are present and which are absent.
Are all these headers always required?
No. The right set depends on your site. A static marketing page needs less than an app handling logins, so treat missing headers as prompts to evaluate, not automatic failures.
Does a missing header mean my site is vulnerable?
Not necessarily, but each absent header removes a layer of defense. Adding them is a low-cost way to reduce risk from clickjacking, sniffing, and downgrade attacks.
Can I use Secure Header Checker on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.