gRPC · Domain Security

Grpc Domain Security

Domain security

Domain security posture for gRPC, probed live across 2 host(s) and 2 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

CNCFHTTP/2MicroservicesProtocol BuffersRPC

Transport & Host Security

grpc.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 10 10:25:02 2026 GMT
protobuf.dev
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 19 19:13:20 2026 GMT

Domain (DNS/Email) Security

grpc.io
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
protobuf.dev
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: grpc.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 10 10:25:02 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: protobuf.dev
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 19 19:13:20 2026 GMT
  hsts: true
  hsts_max_age: 31556952
domains:
- domain: grpc.io
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: protobuf.dev
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject