net/netip.Addr.IsValid
standard libraryThe 763rd most-called standard-library method by production calls. Called 995 times across 61 modules; 904 of those run outside tests and generated code.
2% in production calls vs 2026-W37 (890 → 904)
- prod calls
- 904
- non-test, non-generated
- all calls
- 995
- total callsites
- modules
- 61
- distinct callers
- in loop
- 25%
- of prod calls
- in tests
- 9%
- 88 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 Addr.IsValid from notable Go projects. Open one on the map to see what else it hammers.
- Cilium 111 12%
- Tailscale 99 11%
- Docker 25 3%
- Istio 19 2%
- Kubernetes 12 1%
where it's called
Callsites in the wild
12 representative callsites of 995, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
-
miekg/dns @v0.6.114
cmd/atomdns/handlers/acl/rules.go:48
in loop - in loop
- in loop
-
XTLS/Xray-core @v1.260327.0
in loop - in loop
- in loop
- in loop
- in loop
- in loop
-
passteque/gluetun @v0.0.0-20260915122333-e2e4a0658aad
in loop - in loop
top callers
The modules that reach for it
The modules that call Addr.IsValid most in this snapshot.
- tailscale.com12713%
- github.com/netbirdio/netbird12212%
- github.com/cilium/cilium12012%
- github.com/tailscale/tailscale10911%
- github.com/sagernet/tailscale788%
siblings
More from net/netip
The other most-called members in this package. See all →