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The essentials
Every guide in this topic
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How to flush your DNS cache
Make your computer forget old DNS answers after a site move or record change. Commands for Windows, macOS, Linux and every major browser.
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What is a nameserver?
Nameservers hold your domain’s DNS records. Changing them moves control of every record to a new provider at once.
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What is DNS propagation, and how long does it take?
Why a DNS change reaches some people in minutes and others in hours, how to check its progress, and how to make the next…
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How DNS works
DNS turns a name like example.com into the IP address of a server. Here is every step of a lookup, and why caching makes…