1000 FAQs, 500 tutorials and explanatory videos. Here, there are only solutions!
TTL and delay
This guide describes the meaning of TTL, abbreviation for “Time To Live” as well as the principle of DNS propagation.
DNS & TTL
When you modify information in the DNS zone of a domain name, the TTL value determines how long the settings are temporarily stored and when they are refreshed. So if your TTL value is 24 hours, your changes take effect within one day.
It is possible to reduce this delay by adapting the TTL value but this adaptation must however take place before the update because it is also a matter of DNS propagation.
Indeed, your ISP in particular caches the DNS records corresponding to your domain name: it stores the data locally on its servers for a time to speed up response times, Internet browsing and reduce traffic, which slows down the time. propagation of your DNS changes. Some ISPs ignore TTL settings and only update their cached DNS records every 24 hours or more.