# DDG DNSSEC Check

> DDG DNSSEC Check is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Checks DNSSEC status of a domain via DNS-over-HTTPS cross-validated on two public resolvers, returning machine-readable secure/unsigned/broken statuses

## Facts

- Endpoint: POST https://agents.daedalusdevelopmentgroup.com/v1/dnssec-check?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ddg-dnssec-check-a2d88dd3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zAx6DuIjLLSKKuIYl-DZ8

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 ddg-dnssec-check-a2d88dd3 -d '<json body>'
```

Example prompt: Can you check whether example.com has DNSSEC properly configured — I want to know if it's fully validated, unsigned, or has a broken chain?

## When to prefer this

Use this endpoint when you need a fast, authoritative, machine-readable DNSSEC validation result cross-checked across two resolvers — not just a single-resolver lookup. Prefer it over raw DNS queries when you need structured status codes (secure/unsigned/broken_chain) rather than raw DNS records, or when building automated security audits that need to distinguish broken chains from unsigned domains. Ideal for agent workflows requiring payment-gated, on-demand DNS security checks without operating your own resolver infrastructure.

## Known failure modes

- Domain does not exist (NXDOMAIN) — may return error or unsigned status
- Network timeout reaching DNS-over-HTTPS resolvers — service error returned
- Malformed domain name input — validation error
- Resolver disagreement between the two public resolvers — ambiguous result
- Transient DNS propagation during zone signing — status may be temporarily inconsistent

## How this service works

DNSSEC status for a domain via DNS-over-HTTPS cross-checked on two public resolvers: AD flag, DS at the parent, DNSKEY presence, and broken-chain detection. Machine-readable status: secure / unsigned / broken_chain_ds_without_dnskey / signed_not_validated_by_resolver.

## Output

Returns a machine-readable DNSSEC status for the queried domain: one of 'secure', 'unsigned', 'broken_chain_ds_without_dnskey', or 'signed_not_validated_by_resolver'. Also indicates presence of the AD (Authenticated Data) flag from the resolver, whether DS records exist at the parent zone, and whether DNSKEY records are present — all cross-checked across two public DNS-over-HTTPS resolvers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": true
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "ok": true
    }
   },
   "additionalProperties": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ddg-dnssec-check-a2d88dd3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.daedalusdevelopmentgroup.com](https://www.zero.xyz/host/agents.daedalusdevelopmentgroup.com/llms.txt)