O que é propagação DNS?
É a atualização dos seus registos DNS mundialmente. Pode demorar de minutos a 48h.
Porque existem resultados divergentes?
Devido ao cache. Se o TTL não expirar, o servidor continuará a mostrar a versão antiga.
Propagação DNS
Veja como os seus registos DNS estão a ser resolvidos pelo mundo.
DNS Propagation Checker monitors how DNS changes spread across global servers. Changes typically take 24-48 hours to propagate through the DNS infrastructure.
Key Facts
- DNS propagation affects 300+ million domains
- Default TTL is 3600 seconds (1 hour)
- Over 600 root server instances worldwide
- Lowering TTL before changes can reduce propagation to under 30 minutes
Frequently Asked Questions
How long does DNS propagation take?
Typically 24-48 hours, can range from minutes to 72 hours depending on TTL values and caching policies.
How to speed up propagation?
Lower TTL to 300 seconds 24-48 hours before changes. After propagation, increase back to 3600+.
What is DNS TTL?
Time To Live — how long DNS resolvers cache a record in seconds. TTL 3600 = 1 hour cache.
Can I force DNS propagation?
Cannot force globally. Flush local cache and use Google DNS (8.8.8.8) which updates faster.