DNS guides
Understand records, caching, delegation, and safe DNS changes.
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What you’ll find here
DNS connects names to services. These guides explain how answers are published and cached, how to plan a change, and how to separate DNS symptoms from hosting or HTTPS failures.
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How to change DNS hosting without breaking anything
Copy the complete zone to the new provider, verify its answers before delegation, handle DNSSEC deliberately, and plan for the long overlap window.
How to point a domain to a web host
Connect a domain to a hosting service with the right DNS records, verify the authoritative answer, and avoid disrupting email.
Troubleshooting DNS errors: a step-by-step workflow
Separate registration, delegation, authoritative records, caching, and hosting failures to diagnose NXDOMAIN, SERVFAIL, and wrong-answer problems.
What is DNS? A practical explanation
Understand how resolvers, nameservers, zones, records, and caching work together to connect a domain name to websites and email.