# Domain OSINT, TLS Certificate & Security Headers Recon

> Domain OSINT, TLS Certificate & Security Headers Recon is a paid API for AI agents from x402broker.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-28).

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

## Facts

- Endpoint: POST https://x402broker.com/v1/tls-scanner?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Provider: x402broker.com
- Website: https://x402broker.com
- Canonical page: https://www.zero.xyz/c/x402broker-com-domain-osint-tls-certificate-security-headers-recon-1fd7183a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GkIPybEaEIBQapGZ2CUKG

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 x402broker-com-domain-osint-tls-certificate-security-headers-recon-1fd7183a -d '<json body>'
```

Example prompt: Can you scan anthropic.com and tell me its DNS resolution, TLS certificate issuer and expiry date, and how its HTTP security headers are graded?

## When to prefer this

Choose this endpoint when you need a combined, single-call OSINT sweep of a domain covering DNS, TLS certificate metadata, and HTTP security headers simultaneously, rather than calling separate DNS lookup, SSL check, or header scanning tools individually. It is ideal for security audits, pre-engagement recon, or verifying domain trust signals.

## Known failure modes

- Domain does not exist or cannot be resolved — DNS lookup failure
- Domain has no TLS certificate or expired certificate — TLS inspection fails
- Domain is unreachable or times out — connection error
- Invalid domain input (empty string or malformed) — validation error
- Payment not processed — HTTP 402 returned

## 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://x402broker.com/v1/tls-scanner)

## Output

Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity), and an HTTP security header grade/analysis 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/x402broker-com-domain-osint-tls-certificate-security-headers-recon-1fd7183a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)