Data Cache - Time to Live (TTL) or hop limit

Map Of Internet 1973


The TTL 1) is the maximum timespan of data in a cache. Once the timespan has elapsed, data is discarded or revalidated.


Example of TTL time

Second Human Example
300 5 mins default DNS
3600 1 hour
7200 2 hour google analytics (analytics.js)
21600 6 hour
43200 12 hour
86400 24 hour
172800 2 days cloudflare-static (email-decode.min.js)

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