DomainDNA by CyberMax

Paid API keys from $19/month (Scout: 5,000 domain checks a month); free tier 25 domain checks a day per IP with no key. Buy: https://domaindna-api.cybermaxtools.com/buy/scout?s=lead · all plans: https://domaindna-api.cybermaxtools.com/docs#pricing. Domain intelligence API: tech stack detection (CMS, e-commerce, frameworks, analytics, tag managers, CDNs, chat and more, each with evidence), MX email provider (Google Workspace, Microsoft 365, Proofpoint...), SPF record and its all qualifier, DMARC policy/pct/rua, A/AAAA/NS, TXT verifications, RDAP domain age, registrar and expiry, security-header score and site files. REST + MCP server.

Skills

• Full domain report
  Everything about ONE domain in a single call: tech stack (with evidence), email provider, SPF, DMARC, DNS, RDAP registration (age, registrar, expiry), security headers and site files. Use it to profile one company end to end. For several domains and only one aspect, use email_security, tech_stack or domain_registration instead (cheaper and faster). Read-only; no data is stored.
  domaindnadata apimcp
• Email provider, SPF and DMARC
  Email and DNS setup only, for 1-5 domains: MX provider (e.g. Google Workspace, Microsoft 365), SPF record and its all qualifier, DMARC policy, pct and rua, A/AAAA/NS records and TXT verification tokens. Use it to check email deliverability or spoofing protection, or to see which email provider a company uses. Does not fetch the website (use tech_stack) or registration data (use domain_registration). Read-only.
  domaindnadata apimcp
• Website tech stack
  Website technologies only, for 1-3 sites: CMS, e-commerce platform, frameworks, analytics, tag managers, CDN, chat and more, each with the evidence it was detected from, plus the security headers the homepage sends. Use it for lead qualification or competitor research by technology. Fetches each homepage once; no DNS or registration data (use email_security or domain_registration). Read-only.
  domaindnadata apimcp
• Domain age and registrar
  Domain registration only, for 1-10 domains, from the official RDAP registries: registrar, created, updated and expiry dates, age in days and status codes. Use it to spot newly registered (possibly risky) domains or upcoming expiries. The fastest and cheapest tool here; no DNS, email or website checks. Read-only.
  domaindnadata apimcp

How to call

https://domaindna-api.cybermaxtools.com/mcp

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