---
title: "Security posture of a domain in one call: TLS certificate (issuer, expiry, trust), HTTPS redirect and security headers (HSTS, CSP, nosniff), mail authentication (SPF, DMARC), CAA, DNSSEC, registration status and expiry (RDAP), plus leak/infostealer exposure - graded A-F with prioritised findings"
method: POST
path: "/v1/domain-security-check"
tags: ["SEO"]
---

# Security posture of a domain in one call: TLS certificate (issuer, expiry, trust), HTTPS redirect and security headers (HSTS, CSP, nosniff), mail authentication (SPF, DMARC), CAA, DNSSEC, registration status and expiry (RDAP), plus leak/infostealer exposure - graded A-F with prioritised findings

`POST /v1/domain-security-check`

## Request

- Base URL: `https://agent.connskill.com` (the document declares no server; this is the origin it was published from)
- URL: `https://agent.connskill.com/v1/domain-security-check`
- Auth: none declared

## Request body

- object
  - `domain` string, required: Bare domain, e.g. example.com. Also accepted as "target" or "url".

## Response `200`

Report delivered

- object
  - `status` string
  - `domain` string
  - `score` integer
  - `grade` string
  - `findings` object[]
    - `severity` string
    - `code` string
    - `text` string
  - `registration` object
    - `registrar` string
    - `expires` string
    - `dnssec` boolean
  - `dns` object
    - `mx` string[]
    - `spfAll` string
    - `dmarcPolicy` string
    - `caa` unknown[]
      - unknown
  - `tls` object
    - `issuer` string
    - `daysLeft` integer
    - `authorized` boolean
    - `protocol` string
  - `http` object
    - `status` integer
    - `hsts` unknown
    - `csp` boolean
  - `exposure` object
    - `verdict` object
      - `level` string
      - `reasons` string[]

## Other responses

- `402`: Payment Required

---

[API](https://skmtc.dev/connskill/apis/connskill-growth-services.md) · [All operations](https://skmtc.dev/connskill/apis/connskill-growth-services/llms.txt) · [OpenAPI document](https://skmtc.dev/connskill/apis/connskill-growth-services/revisions/aae873ea0805?raw)