DNS foundations
Understand zones, authoritative nameservers, TTLs and the records that connect a domain to services.
Read DNS foundations →DNS operations, explained clearly
Make DNS changes with confidence.
Practical reference material for domains, website routing and authenticated email—written for people who need reliable results without unnecessary jargon.
Start with the right record
Email authentication
Learn how SPF, DKIM and DMARC work together, and why small syntax mistakes can affect delivery.
Read the email guide →Safe migrations
Move nameservers without losing website traffic or mail by inventorying, testing and monitoring first.
Read the migration guide →Built around operational safety
Zone boundaries
Record names must remain inside their zone. Apex @ and wildcard * names are normalized before publication.
Authoritative answers
Verify both nameservers directly, then check public recursive resolvers to confirm the same result reaches visitors.
Recoverable changes
Lower TTLs before migrations, preserve the old service during propagation and maintain tested backups.