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callcount

net/http.Request.UserAgent

standard library

The 1828th most-called standard-library method by production calls. Called 439 times across 99 modules; 341 of those run outside tests and generated code.

2% in production calls vs 2026-W37 (349 → 341)

All of net/http → Docs on pkg.go.dev ↗

prod calls
341
non-test, non-generated
all calls
439
total callsites
modules
99
distinct callers
in loop
2%
of prod calls
in tests
22%
98 calls
resolved
100%
to a known target

resolution mix

How each call resolves

How each call was attributed. Only resolved kinds, where the target function is known, count toward the ranking. Interface dispatch and unresolved receivers are reported separately and never guessed. Read the taxonomy →

  • Concrete method98%A method on a value whose type is known exactly.
  • Embedded method2%Reached through an embedded type.

who calls this

Notable callers

Production calls into Request.UserAgent from notable Go projects. Open one on the map to see what else it hammers.

where it's called

Callsites in the wild

12 representative callsites of 439, prioritizing in-loop and non-test usage. We link to source, never display it.

Request.UserAgent · 12 of 439 callsites

top callers

The modules that reach for it

The modules that call Request.UserAgent most in this snapshot.

  • github.com/miniflux/v28018%
  • miniflux.app/v28018%
  • github.com/minio/minio327%
  • github.com/googleapis/mcp-toolbox174%
  • github.com/kubernetes/kubernetes113%

siblings

More from net/http

The other most-called members in this package. See all →