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DNS HTTPS/SVCB Record Lookup
x402
DNS HTTPS/SVCB Record Lookup is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Looks up DNS HTTPS/SVCB service binding records for a domain, revealing HTTP/3 (QUIC), HTTP/2 ALPN support, ECH configuration, and IP hints at the DNS level.
Price / call$0.01
Success—
StatusUnknown
How this service works
DNS HTTPS/SVCB record lookup: service binding records that advertise HTTP/3 and HTTP/2 (ALPN), ECH and IP hints for a domain. Shows whether a site supports HTTP/3 at the DNS level. $0.01 per lookup.
Output
Returns the parsed DNS HTTPS/SVCB record for the queried domain, including service priority, ALPN protocol list (e.g. h3, h2), ECH configuration blob if present, and IPv4/IPv6 address hints. Indicates whether HTTP/3 is advertised at the DNS level.
Example use cases
HTTP/3 readiness audit for a site
“Look up the DNS HTTPS record for shopify.com and tell me if it supports HTTP/3 and what ALPN protocols it advertises.”
ECH configuration discovery
“Does fastly.com publish an Encrypted Client Hello config in its DNS HTTPS record? Check the SVCB record and show me the ECH parameters.”
Infrastructure modernization check
“I'm evaluating whether our CDN vendor supports modern protocols — can you pull the DNS HTTPS SVCB record for cdn.example.com and tell me what it says about HTTP/2, HTTP/3, and any IP hints?”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/dns/httpsWhen to prefer
Use this endpoint when you need to determine whether a domain advertises HTTP/3 (QUIC) or HTTP/2 support at the DNS layer via HTTPS/SVCB records, or when you need to discover ECH public keys and IP hints published in DNS. Prefer this over general DNS lookups (A, AAAA, TXT) when specifically investigating modern protocol support and service binding metadata.
Side effects
- Domain has no HTTPS/SVCB record — returns empty or NODATA response
- Invalid or non-existent domain — DNS resolution failure
- DNS timeout — upstream resolver unreachable
- Malformed domain input — request rejected
- Payment not included or insufficient — 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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