HTTP Security Headers Checker
Check common security headers published by your website.
Checks only the public HTTPS endpoint. No login or email required.
About this check
Results represent a point-in-time observation from one server, not a worldwide availability guarantee. The report explains what was tested and what remains unverified.
Need a professional fix? Request optional IT assistance.
How to use this free Security headers checker
HTTP response headers can help browsers enforce important website security controls. Enter the domain or URL above and review the returned records and status details. The results reflect the information available when the check runs.
Understanding your Security headers results
Content Security Policy can reduce some script-injection risks when carefully configured and tested.
HSTS tells browsers to use HTTPS for a host after receiving the policy. Test configuration before applying long durations.
Need help fixing a problem?
Read our Security headers support and troubleshooting service, explore other free diagnostic tools, or contact Remote IT Support for optional professional assistance.