4 ms·
15 min?
by Maxburn 5y ago
15 min?
- belorn 5y agoI would recommend an hour for almost everything except where very fast updates is expected, in which case 5m is my lowest number (I work at a registrar).
- slenk 5y agoObviously registrars allow 1m - is there a reason not too besides extra load on DNS servers?
- remram 5y agoIf the DNS server is out for more than 1 minute you'll get an outage. You also increase latency by preventing anybody from caching the response for more than 1 minute.
- teddyh 5y agoThere are rumors of DNS resolvers deciding that some TTLs are “too low” to be valid, and applying their own default TTL value instead, thereby negating any benefit a low TTL would have had.