DNS Propagation Checker
Check whether your DNS changes have propagated across global resolvers. Query 20+ servers worldwide simultaneously.
What Is DNS Propagation?
When you update a DNS record, the change doesn't take effect everywhere instantly. DNS resolvers around the world cache records for the duration of their TTL (Time To Live). Until that cache expires, different users in different locations may see different results — that's DNS propagation.
This tool queries authoritative resolvers and public DNS servers across multiple continents simultaneously, showing you exactly where your record is and isn't up to date.
How to Speed Up Propagation
- Lower TTL to 300s before making changes
- Wait one full TTL period before changing records
- Use Cloudflare or AWS Route 53 for near-instant propagation
- Verify changes from multiple locations after updating
- Restore TTL to 3600+ after propagation confirms
Frequently Asked Questions
DNS propagation typically completes within 1–48 hours, but often within 1–4 hours for major resolvers. It depends entirely on the TTL (Time To Live) of the previous record — lower TTLs mean faster propagation.
DNS records are cached at various points for the duration of their TTL. When you change a record, different servers around the world update their cache at different times as old entries expire.
Before changes, lower your TTL to 300 seconds (5 minutes). Wait one full TTL cycle, make your changes, then restore the TTL once propagation confirms. This minimizes the window of inconsistency.
You can check A, AAAA, CNAME, MX, TXT, NS, and more. A/CNAME for website moves, MX for email migrations, TXT for domain verification and SPF records.