net/http.Transport.RoundTrip
standard libraryThe 8873rd most-called standard-library method by production calls. Called 92 times across 47 modules; 68 of those run outside tests and generated code.
0% in production calls vs 2026-W37 (0 → 68)
- prod calls
- 68
- non-test, non-generated
- all calls
- 92
- total callsites
- modules
- 47
- distinct callers
- in loop
- 6%
- of prod calls
- in tests
- 26%
- 24 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 method100%A method on a value whose type is known exactly.
who calls this
Notable callers
Production calls into Transport.RoundTrip from notable Go projects. Open one on the map to see what else it hammers.
- Traefik 5 7%
- Kubernetes 3 4%
- Tailscale 3 4%
- Docker 2 3%
- etcd 2 3%
where it's called
Callsites in the wild
12 representative callsites of 92, prioritizing in-loop and non-test usage. We link to source, never display it.
-
etcd-io/etcd @v2.3.8+incompatible
in loop -
coreos/etcd @v2.3.8+incompatible
in loop - in loop
- in loop
-
cloudflare/cloudflared @v0.0.0-20260921104736-05d053acec6c
in loop test -
go.k6.io/k6 @v1.8.1
lib/netext/httpext/tracer_test.go:123
in loop test - in loop test
-
-
-
gitea.dev @v1.27.3
services/migrations/onedev.go:94
-
Azure/azure-sdk-for-go/sdk/azidentity @v1.14.1
internal/customtokenproxy/transport.go:147
-
top callers
The modules that reach for it
The modules that call Transport.RoundTrip most in this snapshot.
- github.com/traefik/traefik/v367%
- tailscale.com67%
- github.com/netbirdio/netbird44%
- github.com/sagernet/tailscale44%
- github.com/SagerNet/sing-box33%
siblings
More from net/http
The other most-called members in this package. See all →