This guide explains what DNS propagation is and why it matters when you make changes to your domain settings.
DNS propagation is the time it takes for updates to your domain’s DNS records or nameservers to spread across the internet. When you make a change, it does not update everywhere instantly. Different internet providers and networks may continue using older information for a period of time before refreshing to the new settings.
This is why a website or email service may work for one person but not another shortly after a DNS change has been made.
In this article, we will cover
- What DNS propagation means
- Why it happens
- How it can affect your website and email
- What to expect while changes are updating
What does DNS propagation mean?
When you update nameservers or change DNS records, those new settings need time to be recognised by systems across the internet. This process is called DNS propagation.
In simple terms, some devices and networks may see the new DNS information sooner, while others may still use the old version until their stored records expire and refresh.
This delay is normal and happens because DNS information is cached in many places to help websites load more efficiently.
[Screenshot Placeholder – DNS update spreading across different locations]
Why does it happen?
DNS systems do not ask for fresh information every single time someone visits a website. Instead, they often store previous DNS results temporarily. This saved information is known as cache.
Because of caching, recent DNS changes may not appear immediately for every visitor. One person may see the new website, while someone else still reaches the previous one for a while.
This does not necessarily mean the change has failed. It often just means the update is still being recognised by different networks and providers.
How can it affect your website and email?
During DNS propagation, your website may appear inconsistent. Some visitors may reach the correct site, while others may see an old website, a holding page, or no site at all.
Email can also be affected if mail-related DNS records are changed. For example, messages may briefly continue following the older route until the new DNS information becomes active more widely.
This is why DNS-related changes should always be planned carefully, especially if they affect both website traffic and email delivery.
What should you do while waiting?
The most important thing is to allow time for the update to complete. Avoid making repeated changes unless you are certain something is wrong, as this can create more confusion and make troubleshooting harder.
You can also clear your browser cache or test from another device or connection, but remember that DNS propagation happens outside your browser as well.
If enough time has passed and the domain still does not appear to be updating correctly, it may be worth reviewing the DNS settings again to make sure the records or nameservers were entered properly.
Need help?
If you are unsure whether your DNS changes are still propagating or need help checking your domain settings, our support team will be happy to assist.
