# Domain OSINT, TLS Certificate & Security Headers Recon

> Domain OSINT, TLS Certificate & Security Headers Recon is a paid API for AI agents from cve-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer, expiry), and HTTP security header grading for a given domain

## Facts

- Endpoint: GET https://cve-intel.agentdiet.dev/v1/dns-recon?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: cve-intel.agentdiet.dev
- Website: https://cve-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/cve-intel-agentdiet-dev-domain-osint-tls-certificate-security-headers-c855e662
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lWZtE_UO3kKzktQNoJt4N

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cve-intel-agentdiet-dev-domain-osint-tls-certificate-security-headers-c855e662
```

Example prompt: Can you run a full DNS and TLS recon on anthropic.com — I want to see its IPv4/IPv6 addresses, who issued the SSL certificate and when it expires, and how its HTTP security headers score?

## When to prefer this

Use this endpoint when you need a quick, all-in-one OSINT snapshot of a domain's DNS, TLS certificate, and HTTP security posture without having to chain multiple tools. Ideal for security researchers, threat analysts, or DevOps engineers checking domain health, certificate validity, or investigating suspicious domains. Prefer this over general-purpose DNS lookup tools when you also need TLS and security header data in a single call.

## Known failure modes

- Domain does not exist or cannot be resolved — returns DNS lookup failure
- TLS certificate missing or self-signed — incomplete certificate data returned
- Domain is unreachable or times out — partial or empty response
- Invalid domain format supplied — validation error on input
- HTTP security headers unavailable if domain blocks HTTP probes

## How this service works

Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade. (Live x402 v2, IETF MPP & MCP endpoint at https://cve-intel.agentdiet.dev/v1/dns-recon)

## Output

Returns live DNS resolution results including IPv4 and IPv6 addresses, TLS certificate metadata (issuer, expiry date), and an HTTP security header grade/assessment for the queried domain

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "domain"
 ],
 "properties": {
  "domain": {
   "type": "string",
   "minLength": 1,
   "description": "Target domain name (e.g. anthropic.com, openai.com) for DNS, TLS certificate, and security header OSINT"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cve-intel-agentdiet-dev-domain-osint-tls-certificate-security-headers-c855e662/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cve-intel.agentdiet.dev](https://www.zero.xyz/host/cve-intel.agentdiet.dev/llms.txt)