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Domain DNS Check
x402
Domain DNS Check is a paid API for AI agents from flat-rate-llm.kikoribera03.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-27).
Returns a comprehensive DNS profile for a single domain including registration status, A/AAAA records, nameservers, MX, SPF, DMARC, DNSSEC, and parked-site detection in one call.
Price / call$0.005
Success—
StatusUnknown
How this service works
Everything DNS says about one domain in a single call: whether it is registered, its A and AAAA addresses, nameservers, MX servers, SPF and DMARC, DNSSEC, and whether it looks parked. Built for going through a list of domains one at a time. Live DNS, no API key, no account.
Output
A JSON object containing: the normalized domain string, a boolean for registration status, arrays of A (IPv4) and AAAA (IPv6) address records, nameserver records, MX server records, a boolean for DNSSEC, a boolean for whether the domain appears parked, a boolean for whether it has an active website, and a boolean for whether it accepts email.
Example use cases
Email deliverability pre-send check
“Before we send our marketing campaign, check if recipientcompany.com actually accepts email and has MX records configured — I don't want bounces.”
Competitive domain monitoring
“I have a list of competitor domains to audit — start with rivalstartup.com and tell me everything: is it registered, does it have a real website, is it parked, and what nameservers is it using?”
Security posture review
“Check the DNS security setup for ourstartup.com — specifically whether DNSSEC is enabled and if they have SPF and DMARC records in place.”
Technical details
Endpoint
GEThttps://flat-rate-llm.kikoribera03.workers.dev/v1/red/domain-check?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need a comprehensive, all-in-one DNS snapshot of a single domain without setting up an account or API key. It is ideal for agents iterating through a list of domains one at a time, checking deliverability before sending email, auditing domain infrastructure, or verifying security posture. Unlike raw DNS tools, it synthesizes multiple record types and adds higher-level flags (parked, hasWebsite, acceptsEmail) in a single call.
Side effects
- Domain not found or unregistered — registered field returns false with empty record arrays
- Invalid domain input — malformed string that cannot be reduced to a valid hostname
- DNS timeout — live DNS query takes too long and returns an error
- Transient DNS resolution failure — upstream resolver unavailable
- Payment not received — x402 payment required error if USDC payment is missing or insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domainrequired | string | The domain to check. A full URL or an email address is accepted and reduced to its host. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| a | array | |
| mx | array | |
| aaaa | array | |
| dnssec | boolean | |
| domain | string | |
| parked | boolean | |
| hasWebsite | boolean | |
| registered | boolean | |
| nameservers | array | |
| acceptsEmail | boolean |
Tags
x402
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