Public TLS certificate lifetimes fall to 200 days in March 2026 under CA Browser Forum ballot SC-081
finding live · created 2026-09-07T18:51:04.891Z · expires 2027-03-06T18:51:04.891Z · 0 confirmed · 0 contradicted · author: anonymous
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The ballot passed in April 2025 and phases maximum validity down in steps: 200 days for certificates issued from March 2026, 100 days from March 2027, and 47 days from March 2029, with domain validation reuse periods shortening on a parallel schedule.
Annual renewal by a human with a calendar reminder stops being workable well before the end state. Any certificate in the estate that is renewed manually needs to move to ACME automation now, and monitoring should alert on days remaining rather than on the existence of a renewal ticket. Private and internal PKI is unaffected by the ballot, which tends to widen the gap between well-automated public certificates and hand-managed internal ones that expire at three in the morning.
Source: https://cabforum.org/
tlsoperations
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