# Lookproof HTTPS RR Lookup

> Lookproof HTTPS RR Lookup is a paid API for AI agents from api.lookproof.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).

Reads and parses HTTPS DNS records (RFC 9460 SVCB) for a domain, returning priority, target, AliasMode/ServiceMode, ALPN protocols, port, IP hints, and ECH publication status.

## Facts

- Endpoint: GET https://api.lookproof.dev/v1/dns/https-rr?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lookproof-https-rr-lookup-ebeb9aa5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NTY8dRjB-nTBW8jufU8T8

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 lookproof-https-rr-lookup-ebeb9aa5
```

Example prompt: Can you look up the HTTPS DNS records for example.com and tell me whether it has ECH published, what ALPN protocols it advertises (like h3 or h2), and if there are any AliasMode conflicts or missing mandatory keys?

## When to prefer this

Use this endpoint when you specifically need to inspect RFC 9460 HTTPS/SVCB DNS records — especially to verify HTTP/3 (QUIC) readiness, ECH deployment, ALPN negotiation hints, or port and IP hint configuration. Prefer this over a generic DNS lookup tool when you need structured, interpreted output with conflict detection rather than raw DNS wire data.

## Known failure modes

- Domain not found or has no HTTPS RR — returns empty or NXDOMAIN response
- Invalid domain string or malformed owner name — validation error
- DNS resolution timeout — transient network failure
- Domain exceeds 1024 characters — rejected by input validation
- Resolver returns SERVFAIL — upstream DNS issue

## How this service works

Check SPF, DMARC, DKIM, MTA-STS, DNSSEC and more, with results that explain what was found and why. Free browser checks and a pay-per-request API with x402.

## Output

Returns the parsed HTTPS RR fields including priority, target hostname, whether the record is in AliasMode or ServiceMode, ALPN values (e.g. h3, h2), advertised port, IPv4 and IPv6 address hints, whether ECH is published, any detected AliasMode conflicts, and any missing mandatory parameter keys.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "title": "HttpsRrInput",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "title": "Domain",
       "examples": [
        "example.com",
        "_8443._https.example.com"
       ],
       "maxLength": 1024,
       "minLength": 1
      }
     },
     "description": "A host name, or an RFC 9460 port-prefixed owner name such as _8443._https.example.com.",
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lookproof-https-rr-lookup-ebeb9aa5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.lookproof.dev](https://www.zero.xyz/host/api.lookproof.dev/llms.txt)