{"ok":true,"result":{"slug":"http-header-checker","name":"HTTP Header Checker","summary":"Fetch a public URL once (redirects not followed, body not read) and return the status line, response headers, resolved address and timing.","description":"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.","method":"POST","endpoint":"/api/v1/tools/http-header-checker","plan":"free","mcpName":"http_header_checker","input":{"type":"object","additionalProperties":false,"properties":{"url":{"type":"string","description":"A public http(s) URL; https:// is added if missing. Ports 80, 443, 8080 and 8443 only.","maxLength":2048},"method":{"type":"string","description":"HTTP method to send.","default":"GET","enum":["GET","HEAD"],"maxLength":200000}},"required":["url"]},"example":{"url":"https://example.com"},"randomOutput":true,"network":true,"docs":"https://pithlab.com/developers/tools/http-header-checker","page":"https://pithlab.com/tools/http-header-checker"}}