HEAD Registered Safe Idempotent
Verified 2026-09-18 · registry updated
2026-06-17HEAD
Returns the headers a GET would return without a response body.
Use HEAD for metadata checks, availability checks, and cache or download decisions without transferring the representation.
httpmethodsmetadata
Reference (http)
HEAD /assets/app.js HTTP/1.1 Host: example.com
Use HEAD for metadata checks, availability checks, and cache or download decisions without transferring the representation.
Common mistakes
- Returning headers that differ materially from the corresponding GET response.
Registry reference: rfc9110
Sources