# DNSSEC Health Check

> DNSSEC Health Check is a paid API for AI agents from dns.use.x402atlas.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Checks whether a domain is DNSSEC-signed (DNSKEY present), has a DS record at the parent zone, and whether the resolver authenticated the answer, returning advisory warnings.

## Facts

- Endpoint: GET https://dns.use.x402atlas.com/dnssec
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dnssec-health-check-1212e01b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_k4TpDKw5PiR4MyuuIFTtn

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 dnssec-health-check-1212e01b
```

Example prompt: Can you run a DNSSEC health check on cloudflare.com and tell me whether it's properly signed, has a DS record at the parent, and whether the resolver authenticated the answer?

## When to prefer this

Use this endpoint when you need a quick, structured DNSSEC health report for a specific domain — especially when you need to verify the full chain of trust (DNSKEY + DS record + resolver authentication) rather than just a raw DNS record lookup. Prefer this over generic DNS tools when you specifically need DNSSEC validation status with advisory warnings.

## Known failure modes

- Invalid or malformed domain name returns an error
- Domain does not exist (NXDOMAIN) may result in empty or error response
- Resolver timeout causes delayed or failed response
- Network issues between the service and authoritative nameservers may cause incomplete results

## How this service works

DNSSEC health check: reports whether a domain is DNSSEC-signed (DNSKEY), has a DS record at the parent, and whether the resolver authenticated the answer, with advisory warnings.

## Output

Returns a structured JSON report indicating whether the domain has a DNSKEY record (is DNSSEC-signed), whether a DS record exists at the parent zone, whether the DNS resolver authenticated the response, and any advisory warnings about misconfigurations or incomplete DNSSEC deployment.

## 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",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "maxLength": 253,
       "minLength": 1,
       "description": "Bare domain to check for DNSSEC signing (not an IP literal, not localhost, not under a reserved suffix like .local/.internal)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "domain",
      "dnssec_enabled",
      "has_ds",
      "authenticated",
      "warnings",
      "queried_at"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "The queried domain"
      },
      "has_ds": {
       "type": "boolean",
       "description": "True when the parent zone publishes a DS record"
      },
      "warnings": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "Advisory posture warnings; never affects the status code"
      },
      "queried_at": {
       "type": "string",
       "format": "date-time",
       "description": "UTC timestamp of the check"
      },
      "authenticated": {
       "type": "boolean",
       "description": "True when the resolver set the DoH AD (Authenticated Data) flag"
      },
      "dnssec_enabled": {
       "type": "boolean",
       "description": "True when a DNSKEY record is present"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "domain": "cloudflare.com",
  "has_ds": true,
  "warnings": [],
  "queried_at": "2026-06-05T12:00:00Z",
  "authenticated": true,
  "dnssec_enabled": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dnssec-health-check-1212e01b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.use.x402atlas.com](https://www.zero.xyz/host/dns.use.x402atlas.com/llms.txt)