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dns-svcb-via-nextdns
x402
dns-svcb-via-nextdns is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Retrieves SVCB DNS records for a domain as answered by NextDNS via DNS over HTTPS, including records, TTL, response code, DNSSEC validation status, and resolver answer time.
Price / call$0.01
Success—
StatusUnknown
How this service works
SVCB records for a domain as answered by NextDNS (DNS over HTTPS): the records, TTL, response code (NOERROR/NXDOMAIN/SERVFAIL), whether the resolver validated DNSSEC, and the resolver's answer time. Compare resolvers to spot propagation lag, filtering or split-horizon answers. $0.01 per lookup.
Output
Returns the SVCB DNS records for the queried domain as answered by NextDNS, including the record data, TTL, DNS response code (NOERROR, NXDOMAIN, or SERVFAIL), whether the resolver performed and validated DNSSEC, and the resolver's answer latency in milliseconds.
Example use cases
Diagnosing SVCB filtering by NextDNS
“Can you check what SVCB records NextDNS returns for cloudflare.com? I want to know if NextDNS is filtering or modifying the answer, and whether DNSSEC was validated.”
Comparing resolver propagation lag
“Look up the SVCB records for fastmail.com via NextDNS and tell me the TTL and answer time — I'm trying to compare how quickly different resolvers pick up new DNS changes.”
Detecting split-horizon SVCB answers
“Query NextDNS for the SVCB records of mycompany.com and tell me the response code and records returned — I need to check if NextDNS sees a different answer than other resolvers, which would indicate split-horizon DNS.”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/svcb/via/nextdns?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to see how NextDNS resolves SVCB records for a domain — especially when comparing resolver behavior, detecting DNS filtering or split-horizon answers, verifying DNSSEC validation, or measuring NextDNS-specific propagation lag. Prefer it over generic DNS lookups when NextDNS resolver fidelity or filtering behavior is the focus.
Side effects
- Domain does not exist — NXDOMAIN response code returned with no records
- NextDNS resolver fails to respond — SERVFAIL response code returned
- Domain exists but has no SVCB records — NOERROR with empty record set
- Invalid domain name format — request may fail or return an error
- Network timeout reaching NextDNS DoH endpoint — no answer time available
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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