LetsEncrypt Usage Statistics

Websites using LetsEncrypt

Top 10k
Top 100k
Top 1m

Quantcast Top 10k
878 of 10,000


Quantcast Top 100k
14,323 of 100,000


BuiltWith Top Million
192,339 of 969,257


Entire Internet
21,947,229 of 374,469,318


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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 27,034,689 websites that have used LetsEncrypt. We know of 21,947,229 live websites using LetsEncrypt and an additional 5,087,460 sites that used LetsEncrypt historically

View Website List

Get a list of websites using LetsEncrypt

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Root Authority

Comodo SSL

262,286 websites

DigiCert SSL

95,203 websites

GoDaddy SSL

70,334 websites

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Browse groups of technologies that we track.