Why is DNS propagation slow?

DNS propagation is slow because DNS records are cached at multiple levels: your browser, OS, ISP resolver, and recursive DNS servers. Each cache honors the TTL value, so records with high TTL values take longer to update globally.

How can I speed up DNS propagation?

Lower your DNS TTL to 300 seconds (5 minutes) at least 24-48 hours before making changes. After the change propagates, increase TTL back to 3600 seconds or higher. This is the standard best practice for DNS migrations.

TTL (Time To Live) specifies how long DNS resolvers should cache a record in seconds. A TTL of 3600 means resolvers cache the record for 1 hour. Lower TTL values enable faster propagation but increase DNS query traffic.

Qu'est-ce que la propagation DNS ?

C'est la mise à jour de vos enregistrements DNS sur le réseau mondial. Cela peut prendre de quelques minutes à 48h selon les paramètres TTL.

Pourquoi différents résolveurs montrent-ils des résultats différents ?

Les serveurs DNS utilisent le cache. Tant que le TTL n'a pas expiré, ils continuent à afficher les anciens enregistrements.

🌍 Propagation DNS

Vérifiez comment vos enregistrements DNS sont résolus à travers le monde.

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.

🌍 Propagation DNS

Qu'est-ce que la propagation DNS ?

Pourquoi différents résolveurs montrent-ils des résultats différents ?

Key Facts

Frequently Asked Questions

Outils DNS connexes