Alan Spurgeon

DNS change. Why it takes so long.

Why do DNS changes take so long to take effect? Find out here...

Every domain has two name servers assigned to it and these are the only two name servers that hold records for a domain. However, when another server somewhere else in the world, queries the name servers for DNS records, it will often keep a local copy of the DNS record so that next time it needs to know what IP address the domain resolves to, it already has the answer.

When changes are made to the actual DNS records on the two name servers that are assigned to your domain, these changes will gradually filter through the other servers in the world so that everything is up to date, it is this process that can take 24-48 hours.

DNS propagation

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