# DomainDNA: Website Tech Stack & Email Security Lookup

> DomainDNA: Website Tech Stack & Email Security Lookup is a paid API for AI agents from domaindna-api.cybermax-tools.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Returns a domain's full technology stack, email security configuration (SPF, DKIM, DMARC), and domain age in a single API call

## Facts

- Endpoint: GET https://domaindna-api.cybermax-tools.workers.dev/x402/api/registration?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domaindna-website-tech-stack-email-security-lookup-ddc826df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uyLMc8YEo4beBlr1-ozxZ

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 domaindna-website-tech-stack-email-security-lookup-ddc826df
```

Example prompt: Can you check stripe.com and tell me what tech stack they're running, how old the domain is, and whether their email security (SPF, DKIM, DMARC) is properly configured?

## When to prefer this

Choose this endpoint when you need a comprehensive single-call lookup combining tech stack fingerprinting, email security posture, and domain age for any website or domain. It is ideal over separate DNS, WHOIS, and tech-detection tools because it bundles all three into one call with evidence, reducing latency and cost. Best for lead enrichment, security audits, pre-outreach vetting, and competitive research.

## Known failure modes

- Domain not found or unresolvable returns empty or error response
- Rate limiting if more than 10 domains submitted per call
- Invalid domain format returns validation error
- Private or newly registered domains may have incomplete RDAP data
- Some tech stack fingerprints may be absent if the site blocks crawlers

## How this service works

Any website's tech stack and email security, one call. Tech stack, email security and domain age API + MCP: one call per domain, evidence included Try it free in one click, no sign-up.

## Output

A JSON object containing the website's detected technology stack (CMS, frameworks, CDN, analytics, etc.), email security records (SPF, DKIM, DMARC policies), domain registration age and RDAP data, and DNS details — all in a single response with evidence included

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "domain": {
       "type": "string",
       "description": "A domain, URL or email, or up to 10 separated by commas. Subdomains are kept for the website and DNS checks; DMARC and RDAP use the registrable domain."
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domaindna-website-tech-stack-email-security-lookup-ddc826df/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from domaindna-api.cybermax-tools.workers.dev](https://www.zero.xyz/host/domaindna-api.cybermax-tools.workers.dev/llms.txt)