Normally, these statistics are updated daily. At present there is maintenance work underway and statistics are on hold until that work is completed.
(14-day moving average, source: Firefox Telemetry)
Since the 2017-07-03 methodology change:
- ct-mapreduce ingests data from CT logs and produces statistics about Let’s Encrypt.
- HTTPS adoption comes from Mozilla’s Telemetry SSL Ratios dataset.