Let’s Encrypt/stats
From wiki
Official stats
Let’s Encrypt provide some official statistics on the number of certificate that they deliver.
Ranking
Censys allows to get some statistics on the usage of Let’s Encrypt among the top 1 million websites.
Reports bellow are based on intermediate certificate name. Some provider use different intermediate for different class of certificate. Eg. in the HTTPS report, COMODO is both #1 and #2.
Reports are build by querying the raw domain name. Some website are know to serve different certificates for the raw domain and the www prefix.
HTTPS
| Date | Number | Percent | Rank | Total Number |
|---|---|---|---|---|
| 26-03-2016 | 7 590 | 1.08% | 19 | 705 166 |
| 20-05-2016 | 10 164 | 1.5% | 13 | 677 923 |
SMTP
| Date | Number | Percent | Rank | Total Number |
|---|---|---|---|---|
| 26-03-2016 | 926 | 0.15% | 50 | 623 943 |
| 20-05-2016 | 1000 | 0.17% | 49 | 600 579 |
