Enter a domain
Type a domain like example.com. The tool validates the domain before checking the headers.
Free Website Security Header Tool
Free security header checker for testing browser protection.
Check whether a website is using important security headers like HSTS, Content Security Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy.
✓ No signup required
✓ Security header report
✓ Built-in abuse protection
How the security header checker works.
This tool checks a website’s HTTPS response headers and highlights whether common browser security headers are present.
Scan headers
The checker reads the website’s response headers and looks for common security-related headers.
Review missing items
See which headers are present, which are missing, and where security hardening may be useful.
Security headers this tool checks.
These headers help browsers enforce safer behavior when visitors load your website.
Strict-Transport-Security
Helps force browsers to use HTTPS after a valid secure visit.
Content-Security-Policy
Helps control which scripts, styles, images, and resources can load on a page.
X-Frame-Options
Helps reduce clickjacking risk by controlling whether a page can be embedded in frames.
Security header checker FAQ.
Quick answers about website security headers, browser protections, and hosting security basics.
What does this security header checker test?
It checks common HTTP security headers including HSTS, Content Security Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy.
Are missing security headers bad?
Missing headers do not always mean a website is hacked or unsafe, but they can mean the browser is not receiving extra protection rules that may reduce common risks.
What is HSTS?
HSTS stands for HTTP Strict Transport Security. It tells browsers to use HTTPS for future visits after a secure connection has been established.
What is Content Security Policy?
Content Security Policy is a powerful browser security header that can restrict which scripts, styles, images, frames, and other resources can load.
Does this replace a full security audit?
No. This tool checks headers only. A full website security review should also include software updates, malware checks, login security, plugin review, backups, and server configuration.
Can HostDroplet help with secure hosting?
Yes. HostDroplet provides beginner-friendly hosting with SSL support, security-focused setup, backups, and helpful website guidance.
Need hosting with a stronger security foundation?
HostDroplet provides fast, secure, beginner-friendly hosting for WordPress websites, small business sites, blogs, and online projects. Start with hosting that supports SSL, backups, performance, and helpful security guidance.
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