Certificate lifetimes

How many websites are already using shorter certificates?

188,710377,420566,130754,840≤ 47 days: 2,499 (0.3%)2,499 · 0%≤ 47 days48–100 days: 754,840 (77.5%)754,840 · 78%48–100 days101–200 days: 128,665 (13.2%)128,665 · 13%101–200 days201–398 days: 83,317 (8.6%)83,317 · 9%201–398 days> 398 days: 4,120 (0.4%)4,120 · 0%> 398 days47-day max (Mar 2029)100-day max (Mar 2027)200-day max (Mar 2026)median 90 d
Reference line

Maximum lifetime: 200 days (Mar 2026), 100 (Mar 2027), 47 (Mar 2029).

Denominator: deep-scanned websites · n = 973,441

View as table
BucketSitesShare
≤ 47 days2,4990.3%
48–100 days754,84077.5%
101–200 days128,66513.2%
201–398 days83,3178.6%
> 398 days4,1200.4%

Source: GeoTrust Research — The State of SSL/TLS, October 2026