TLDR Tech / Opinion
Let's Encrypt Shortens Certificate Validity to 64 Days
For the first time, Let's Encrypt is reducing its standard certificate duration. Beginning February 10, 2027, certificates will be valid for 64 days, down from the previous 90 days. This adjustment aligns with updated timelines from the CA/Browser Forum and is intended to mitigate the impact of compromised keys or incorrect certificate issuances. It is recommended that organizations ensure their ACME clients are compatible with ACME Renewal Information (ARI) or update their renewal schedules from 60 days to 42 days to accommodate the shorter validity period.
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