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October 1, 2025
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TLS Lifetime Schedule
Category:
Internet
Updated:
4 hours ago
The dates on which major changes in the lifetimes of TLS certificates will be lowered
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0
17
Contributors
Created by
Larry Seltzer
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Periods
5 months to the first change in max certificate lifetime.
4 months to the first change in max certificate lifetime.
2 months to the first change in max certificate lifetime.
1 short month to the first change in max certificate lifetime.
As of today, maximum lifetime of new Web PKI TLS certs is 200 days. Maximum DCV reuse is also 200 days.
Any public TLS certificates issued on or just after March 15, 2026 will start to expire on Oct 1, 2026. Approximately 6 months to the second change in max certificate lifetime.
As of today, maximum lifetime of new Web PKI TLS certs is 100 days. Maximum DCV reuse is also 100 days.
Certificate bought on 3/14/2026 expires
Certificate bought on 3/15/2027 expires
Certificate bought on 3/14/2027 expires
Web PKI TLS certificates maximum lifetime is 47 days. Maximum DCV reuse is 10 days.
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