These statistics are updated daily.
Let's Encrypt Growth
Percentage of Web Pages Loaded by Firefox Using HTTPS
(14-day moving average, source: Firefox Telemetry)
Let's Encrypt Certificates Issued Per Day
Code
Since the 2017-07-03 methodology change:
- ct-mapreduce ingests data from CT logs and Firefox Telemetry, and produces statistics about Let’s Encrypt.
Before 2017-07-03:
- ct-sql ingests data from Censys.io, CT logs, and Firefox Telemetry.
- ct-sql-queries contains the SQL queries run periodically to construct the data.