DNS Propagation Checker — Global Resolver Verification
When you change DNS records (like moving to a new host), the new values must propagate to DNS resolvers worldwide. Propagation is not instant — it depends on TTL (Time to Live) values. Our tool queries 7 major resolvers globally to verify propagation.
How long does DNS propagation take?
Propagation time equals your DNS record's TTL value. If TTL is 3600 (1 hour), old values may be cached for up to 1 hour worldwide. Lower TTL before changes (e.g., 300 seconds) for faster propagation.
Why do different resolvers show different results?
Each DNS resolver caches records independently based on TTL. If you recently changed a record, some resolvers still serve the old value. Inconsistency = propagation still in progress.
What is TTL?
TTL (Time to Live) is the number of seconds DNS resolvers should cache a record before re-querying authoritative servers. Lower TTL = faster updates but more DNS queries. High TTL = slower changes but less load.
How can I speed up DNS propagation?
Before making DNS changes: lower your TTL to 300 seconds (5 minutes) and wait 24-48 hours. After changes, resolvers will refresh within 5 minutes. Return TTL to normal (3600) after propagation confirms.