# Domain OSINT, TLS Certificate & Security Headers Recon

> Domain OSINT, TLS Certificate & Security Headers Recon is a paid API for AI agents from company-enrich.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://company-enrich.agentdiet.dev/v1/dns-whois-tls-recon?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: company-enrich.agentdiet.dev
- Website: https://company-enrich.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/company-enrich-agentdiet-dev-domain-osint-tls-certificate-security-9e89bf6f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nNJgsxmXW1PAWXbyW42PN

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 company-enrich-agentdiet-dev-domain-osint-tls-certificate-security-9e89bf6f
```

Example prompt: Can you run a full DNS, TLS certificate, and security headers recon on stripe.com — I want to see the IP addresses it resolves to, who issued the cert and when it expires, and what security grade its HTTP headers get?

## When to prefer this

Use this endpoint when you need a quick, all-in-one passive OSINT snapshot of a domain's DNS resolution, TLS certificate health, and HTTP security posture without running separate tools. Ideal for security due diligence, pre-integration vendor checks, certificate expiry monitoring, or competitive reconnaissance where a single $0.01 call yields DNS, TLS, and header data together.

## Known failure modes

- Domain does not exist or fails to resolve — DNS lookup returns empty or error
- Domain has no HTTPS/TLS — certificate data unavailable
- Target server blocks or rate-limits the probe — incomplete security header data
- Invalid domain format supplied — request rejected with validation error
- Transient network timeout reaching the target domain

## 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://company-enrich.agentdiet.dev/v1/dns-whois-tls-recon)

## Output

Returns live DNS resolution data including IPv4 and IPv6 addresses, TLS certificate details (issuer, validity dates, expiry), and an HTTP security headers assessment with a security grade for the target 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/company-enrich-agentdiet-dev-domain-osint-tls-certificate-security-9e89bf6f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from company-enrich.agentdiet.dev](https://www.zero.xyz/host/company-enrich.agentdiet.dev/llms.txt)