DNS Propagation Checker

What is DNS propagation?

When you change a DNS record — such as updating nameservers, adding an A record, or modifying an MX record — the change doesn't take effect instantly everywhere. DNS changes propagate gradually across resolvers worldwide, a process that can take anywhere from a few minutes to 48 hours depending on the record's TTL (Time To Live) value.

Why do results differ between resolvers?

Each resolver caches DNS responses for the duration of the TTL. Until a cached entry expires, a resolver continues returning the old value. This is why visitors in different locations may see different versions of your website during propagation.

How to speed up propagation

• Lower the TTL of your records to 300 seconds (5 minutes) before making changes
• After propagation is complete, restore the TTL to a higher value (3600–86400 seconds)
• Use authoritative nameservers with low TTLs for faster updates
• Flush your local DNS cache after making changes