# Domain Intel – NS Cloudflare Article (WHOIS, DNS, Mail, TLS, Subdomains)

> Domain Intel – NS Cloudflare Article (WHOIS, DNS, Mail, TLS, Subdomains) is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-12).

Given a domain name, returns WHOIS, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomain enumeration, paid per call in USDC via x402.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/ns-cloudflare?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-intel-ns-cloudflare-article-whois-dns-mail-tls-subdomains-fdc7eb1c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_riPjLsQNnrLkUb1QI--94

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 domain-intel-ns-cloudflare-article-whois-dns-mail-tls-subdomains-fdc7eb1c -d '<json body>'
```

Example prompt: Pull up a full domain intelligence report for stripe.com — I need WHOIS, DNS records, mail policy (SPF/DMARC), TLS cert details, and any known subdomains.

## When to prefer this

Choose this endpoint when you need a single, all-in-one domain intelligence payload covering WHOIS, DNS, mail policy, TLS, and subdomains without managing multiple DNS/WHOIS APIs separately. Ideal for security audits, phishing investigations, vendor due diligence, or infrastructure reconnaissance where you want a pay-as-you-go model with no API key or subscription. Prefer this over generic DNS resolvers when you also need WHOIS, certificate, or subdomain data in the same call.

## Known failure modes

- Domain not found or invalid format — returns error indicating unresolvable domain
- WHOIS data unavailable for certain TLDs or privacy-protected registrations
- DNS resolution timeout for slow or non-responsive nameservers
- TLS certificate retrieval failure if domain has no HTTPS endpoint
- Rate limiting or payment failure via x402 protocol if USDC balance is insufficient

## How this service works

Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.

## Output

A comprehensive domain intelligence report including: WHOIS registration data (registrar, registrant, dates), DNS records (A, AAAA, MX, NS, TXT, CAA, SOA), mail security policy records (SPF, DKIM, DMARC), TLS/SSL certificate details (issuer, validity, SANs), and a list of discovered subdomains.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "maxLength": 253
  },
  "baseline": {
   "type": "object",
   "required": [
    "domain",
    "observed_at",
    "records"
   ],
   "properties": {
    "domain": {
     "type": "string",
     "maxLength": 253
    },
    "records": {
     "type": "array",
     "items": {
      "type": "string",
      "maxLength": 254
     },
     "maxItems": 50
    },
    "observed_at": {
     "type": "string",
     "maxLength": 40
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-intel-ns-cloudflare-article-whois-dns-mail-tls-subdomains-fdc7eb1c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.halowerk.com](https://www.zero.xyz/host/dns.halowerk.com/llms.txt)