Tech & IT

Computer science, IT and technology explainers — concepts every curious person should understand.

DNS resolution diagram showing client request flowing through root, TLD and authoritative name servers to A, AAAA, CNAME, MX and TXT records

2026-07-03

DNS Records Explained: A, AAAA, CNAME, MX and TXT for Beginners

A plain-English guide to the 7 DNS record types you'll actually meet — what each one does, real examples, and how to check any domain's records for free.