DNS lookup
Look up the A, MX, TXT and NS records of a domain in an instant.
Server request
DNS lookup
A and AAAA records point at the web server address, MX at the mail servers, TXT usually carries SPF and DMARC anti-spam policies, and NS names the authoritative servers for the domain. The TTL says how many seconds a resolver may cache the answer โ which is why a DNS change takes time to propagate.
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