Web Utilities
HTTP Header Checker
Audit Server Response Protocols and Security Policies
Target URL or Domain
Proxy Status:
RFC 7230 Compliant
About the HTTP Header Checker
An HTTP header checker that requests a URL and lists the response headers, including cache and security headers.
How to use the HTTP Header Checker
- Enter the full URL.
- Run the check.
- Read the status and the headers.
What to check
The headers are what this request received. A CDN can send different headers to different visitors.
Which security headers should I look for?
Common ones are Strict-Transport-Security, Content-Security-Policy, and X-Content-Type-Options.
Why is a header missing?
The server or the CDN did not send it on this response. Check the site configuration.