Free APIDev ToolsNo keyOfficial

Cloudflare DNS over HTTPS

Resolve any DNS record over HTTPS with a keyless JSON GET

Cloudflare's 1.1.1.1 resolver exposes DNS over HTTPS with a simple JSON mode: GET a name and type and receive resolved records as JSON. It is a keyless way to do A/AAAA/MX/TXT/CNAME lookups, DNSSEC validation and CAA checks from any environment that can make an HTTP request, no DNS library required.

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Free tier

Free, no key; public 1.1.1.1 resolver

Rate limits

Not published for casual use; intended as a public resolver, fair-use expected

Auth

No key

Base URL

https://cloudflare-dns.com

What you'd build with it

Resolve MX/TXT records to validate an email domain in an automation
Check a domain's A/AAAA records from a serverless function
Verify SPF/DKIM/DMARC TXT records during deliverability checks
Do DNS lookups in environments with no native resolver access

Key endpoints

GET/dns-query?name={name}&type={type}Resolve a DNS record as JSON (send Accept: application/dns-json)

Members

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