Explain an HTTP header: request or response, purpose, security notes, and its IA...

{ "method": "GET", "queryParams": { "name": "Strict-Transport-Security" }, "type": "http" }

{ "example": { "asOf": "2026-10-11T14:26:45.602Z", "degraded": false, "direction": "response", "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.", "name": "Strict-Transport-Security", "notChecked": [ "how a particular server, CDN or browser version treats the header", "headers invented by applications (reported as not registered, not as wrong)", "…1 more" ], "purpose": "Tells browsers to use HTTPS only for this host for max-age seconds.", "reasons": [ "Security note: Use max-age of at least 31536000 and includeSubDomains once ready; preload is hard to undo." ], "reference": "[RFC 6797: HTTP Strict Transport Security (HSTS)]", "registered": true, "registryStatus": "permanent", "securityNote": "Use max-age of at least 31536000 and includeSubDomains once ready; preload is hard to undo.", "source": "IANA HTTP Field Name Registry (retrieved 2026-10-11); purposes and security notes written for this shelf", "structuredType": null, "summary": "Strict-Transport-Security: Tells browsers to use HTTPS only for this host for max-age seconds. (response header, IANA status permanent).", "verdict": "EXPLAINED" }, "type": "json" }