LetsEncrypt Usage Statistics

Websites using LetsEncrypt

Top 10k
Top 100k
Top 1m

Quantcast Top 10k
700 of 10,000


Quantcast Top 100k
11,734 of 100,000


BuiltWith Top Million
166,192 of 772,535


Entire Internet
18,956,866 of 374,403,828


Log in or Sign up for Free to see LetsEncrypt history back another year to February 2016. View plans for historical access back to March 2016.

Let’s Encrypt is a free open Certificate Authority.


Categories: SSL Certificates · Root Authority

Technology Won
Comodo SSL 68,267
Comodo PositiveSSL 49,403

This table shows where LetsEncrypt are gaining/losing customers from within the technologies in the same sub-categories of Root Authority. View the full report for more information regarding countries, states and where LetsEncrypt's customers come from.

Physical locations of businesses using LetsEncrypt.


Top 10,000 Sites
Top 100,000 Sites
Top 1 Million Sites

This chart shows the amount of websites within the top 10k, 100k, and 1 million sites groups that are categorized as being in the specific vertical.

Get access to data on 23,823,864 websites that have used LetsEncrypt. We know of 18,956,866 live websites using LetsEncrypt and an additional 4,866,998 sites that used LetsEncrypt historically

View Website List

Get a list of websites using LetsEncrypt

Pro Screenshot

Root Authority

Comodo SSL

304,320 websites

GeoTrust SSL

96,992 websites

GoDaddy SSL

73,307 websites

Log in or Sign up for Free to see additional categories and competitors.

Browse groups of technologies that we track.