4GRAND · Domain Security

4GRAND Domain Security

Domain security

Domain security posture for 4GRAND, probed live across 1 host(s) and 1 registrable domain(s). 1 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF absent, DMARC absent.

TennisGrand Slam

Transport & Host Security

grand.tennis
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Feb 5 20:25:59 2027 GMT

Domain (DNS/Email) Security

grand.tennis
DNSSEC: no · SPF: no · DMARC: no · CAA: yes

Source

Domain Security

grand-tennis-domain-security.yml Raw ↑ 
generated: '2026-11-10'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: grand.tennis
  https: true
  tls_version: TLSv1.3
  cert_expires: Feb  5 20:25:59 2027 GMT
  hsts: true
  hsts_max_age: 63072000
domains:
- domain: grand.tennis
  dnssec: false
  caa:
  - 0 issue "letsencrypt.org"
  - 0 issue "pki.goog"
  - 0 issue "sectigo.com"
  spf: false
  dmarc: false

Work with this as data

Every security artifact here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for security posture

4 MCP tools reach this
  • find_securityBrowse and filter every security artifact in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This security artifact 
curl "https://apis.io/api/v1/security/grand-tennis-domain-security"
All security posture 
curl "https://apis.io/api/v1/security?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.