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VAULT 33|27

Term

DNS

Domain Name System: the internet's address book that points your domain to your website and email.

VAULT 33|27 · Updated 12 November 2026 · 1 min read

What it means

DNS translates a domain name like example.com into the addresses of the servers that host your website and handle your email. Records such as A, CNAME, MX and TXT are managed at your domain registrar or DNS provider.

Why it matters for your business

DNS mistakes can take a website or email offline, and missing email records (SPF, DKIM, DMARC) send your messages to spam. Changes should be planned and documented, especially during a website migration.

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