HTTP Header Viewer
View HTTP response headers for any URL. Supports GET and HEAD methods with redirect following options.
Note: Due to CORS restrictions, this tool can only fetch headers from same-origin URLs or servers that allow cross-origin requests. For cross-origin URLs, you may need to use a CORS proxy.
How to Use
- 1
Enter URL
Type or paste the URL you want to inspect. Note: CORS restrictions may limit which URLs can be accessed.
- 2
Configure options
Select the HTTP method (GET or HEAD) and choose whether to follow redirects.
- 3
Fetch headers
Click Fetch Headers to retrieve the HTTP response headers.
- 4
View results
See the status code, status text, and all response headers in a table format.
HTTP headers are metadata sent with requests and responses. They contain information about caching, content type, security policies, cookies, and more. Understanding headers is essential for debugging web applications and APIs.
- •Debugging CORS issues
- •Checking cache headers
- •Verifying security headers (CSP, HSTS)
- •Inspecting content types
- •Troubleshooting redirect chains