Check DNS record propagation across multiple DNS servers globally. See how your DNS changes are spreading worldwide.
Learn how DNS changes spread across the internet
DNS propagation is the time it takes for DNS changes to update across all DNS servers worldwide. When you modify a DNS record, the change doesn't happen instantly everywhere - it spreads gradually as DNS caches expire and servers fetch updated records.
Propagation typically takes between 5 minutes to 48 hours, depending on your TTL settings and the DNS servers involved. Lower TTL values mean faster propagation but more DNS queries. Most changes propagate within 1-4 hours.
TTL determines how long DNS servers cache your records. Before making important changes, consider lowering your TTL to 300-600 seconds a day in advance. After changes propagate, you can increase it again for better performance.
Different DNS servers may show different results during propagation. This is normal - some servers have cached the old record while others have fetched the new one. Eventually, all servers will have the updated information.
If you're planning a DNS migration or major changes, reduce your TTL to 300 seconds 24-48 hours before the change. This ensures faster propagation when you make the actual update. After everything is working correctly, increase the TTL back to 3600-86400 seconds for better caching.