HTTP Headers Inspector
Inspect response headers for any public URL.
About CORSNote that because this tool runs in your browser, it is subject to Cross-Origin Resource Sharing (CORS) policies. Many websites block requests from other origins, which will result in a failed inspection.
What is a HTTP Headers Inspector?
HTTP headers contain vital metadata about a webpage, including security policies, caching rules, and server information. Inspecting headers helps developers debug API responses, verify CORS configurations, and ensure security headers (like CSP or HSTS) are correctly applied.
How to use
- 1Enter the full URL of the website or API endpoint.
- 2Click 'Inspect Headers'.
- 3The tool fetches and displays all public response headers.
- 4Analyze the key-value pairs for debugging.