Question 1

What is dnsfyi?

Accepted Answer

dnsfyi is a high-performance domain intelligence platform providing instant DNS lookup, email security validation (SPF, DKIM, DMARC), SSL monitoring, and IP reputation checks — all from a single interface.

Question 2

How fast are DNS lookups on dnsfyi?

Accepted Answer

Lookups execute in under 100 milliseconds using persistent HTTP/2 connection pooling directly to authoritative and global Anycast DoH resolvers including Cloudflare (1.1.1.1), Google (8.8.8.8), and Quad9 (9.9.9.9).

Question 3

Is dnsfyi free to use?

Accepted Answer

Yes, dnsfyi is completely free for individual and professional use. A free REST API is also available with no API key required for standard rate limits.

Question 4

Does dnsfyi store my domain queries?

Accepted Answer

dnsfyi does not store or log individual domain query results. DNS lookups are executed ephemerally — results are never persisted to a database or sold to third parties.