HTTP Header Checker API

Fetch a public URL once (redirects not followed, body not read) and return the status line, response headers, resolved address and timing.

POST /api/v1/tools/http-header-checkerMCP http_header_checkerNetwork ToolsRandom outputLive network check

Fetch any public URL and see its HTTP status, response headers, server address and response time, with quick notes on HSTS, CSP, caching and version leaks.

Input

Send these as a JSON object. Unknown fields are rejected.

url: A public http(s) URL; https:// is added if missing. Ports 80, 443, 8080 and 8443 only. (string, up to 2048 characters, required)
method: HTTP method to send. (string, one of GET, HEAD, default "GET")

Try it in the browser JSON Schema Get an API key

curl https://pithlab.com/api/v1/tools/http-header-checker \n  -H "Authorization: Bearer $PITHLAB_KEY" \n  -H "Content-Type: application/json" \n  -d '{"url":"https://example.com"}'