Review (August 2025)

Let's encrypt is a free, automated, and open certificate authority brought to you by the nonprofit internet security research group (isrg).

725k

Estimated Revenue

1.31M

Website Visitors

4.3/5

Trustpilot Score

What do we know about Let's Encrypt?

Estimated Revenue (2020)

$725k

Total Employees

5

Founded

2013

Industry

Internet

Location

San Francisco, United States

About

Let's Encrypt: Let's Encrypt is a free, automated, and open certificate authority brought to you by the nonprofit Internet Security Research Group (ISRG).

Social Links

Alexa Ranking: 8518

What is Let's Encrypt's Revenue?

Let's Encrypt's estimated revenue for 2024 is $725k.

What does Let's Encrypt do?

Let's Encrypt is a free, automated, and open certificate authority (CA), run for the public's benefit. It is a service provided by the Internet Security Research Group (ISRG). We give people the digital certificates they need in order to enable HTTPS (SSL/TLS) for websites, for free, in the most user-friendly way we can. We do this because we want to create a more secure and privacy-respecting Web. The key principles behind Let's Encrypt are: Free: Anyone who owns a domain name can use Let's Encrypt to obtain a trusted certificate at zero cost. Automatic: Software running on a web server can interact with Let's Encrypt to painlessly obtain a certificate, securely configure it for use, and automatically take care of renewal. Secure: Let's Encrypt will serve as a platform for advancing TLS security best practices, both on the CA side and by helping site operators properly secure their servers. Transparent: All certificates issued or revoked will be publicly recorded and available for anyone to inspect. Open: The automatic issuance and renewal protocol will be published as an open standard that others can adopt. Cooperative: Much like the underlying Internet protocols themselves, Let's Encrypt is a joint effort to benefit the community, beyond the control of any one organization.

What are the monthly traffic metrics for Letsencrypt?

6/mo Traffic Growth

-46.60%

All Time Traffic Growth

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Monthly Hits

1M

Time on Site

3.2Mins

Bounce Rate

46%

How fast is Letsencrypt growing?

Letsencrypt has grown by 3.3% in the last 6 months according to SimilarWeb.

How do people interact with Letsencrypt?

Last month, Letsencrypt received 1M visitors who spent an average of 3.2 minutes on the website and visited 4.0 different pages per session. Overall, 46% of people bounce on the first visit.

How do people find Letsencrypt?

672.2k people (51%) visit Letsencrypt directly. 501.4k (38%) people search for them in Google. Whereas, 25.6k (2%) discover Letsencrypt through Facebook, Reddit, and YouTube. 3.4k (0%) visitors come from Letsencrypt's email newsletters. Finally, 569.5 (0.0%) people come from affiliates and or paid referrals.

Who uses Letsencrypt?

Letsencrypt's top market is the United States and they receive 148.6k (11.3%) people.
Then the 2nd is Russian Federation with 80k (6.1%).
The 3rd is is Germany with 75.4k (5.7%).

Traffic Growth (last 6 months)

All Traffic Source

Country Share

Traffic Growth (last 12 months)

See 12/mo Traffic Stats

What are Letsencrypt's ads on Google?

Google Ads

Encryption for Everyone | Free Certs for SSL/TLS | letsencrypt.org‎

https://letsencrypt.org/

It's Easy and Free: Get HTTPS to Secure Your Website Today. No Cost · Easy to Deploy · SSL/TLS Certificates · Non-profit 501(c)(3)

Can't Afford SSL? | Free Certs. Simple. No Catch | letsencrypt.org‎

https://letsencrypt.org/

Secure Your Website with HTTPS Today No Cost · SSL/TLS Certificates · Non-profit 501(c)(3) · Easy to Deploy Activities: Donate, Sponsor

Can't Afford SSL? | Free Certs. Simple. No Catch | letsencrypt.org‎

https://letsencrypt.org/

Secure Your Website with HTTPS Today Non-profit 501(c)(3) · Easy to Deploy · No Cost · SSL/TLS Certificates Activities: Donate, Sponsor

Encryption for Everyone | Free Certs for SSL/TLS | letsencrypt.org‎

https://letsencrypt.org/

It's Easy and Free: Get HTTPS to Secure Your Website Today. Non-profit 501(c)(3) · Easy to Deploy · No Cost · SSL/TLS Certificates Activities: Donate, Sponsor

Encryption for Everyone | Free Certs for SSL/TLS | letsencrypt.org‎

https://letsencrypt.org/

It's Easy and Free: Get HTTPS to Secure Your Website Today. No Cost · SSL/TLS Certificates · Easy to Deploy · Non-profit 501(c)(3) Activities: Donate, Sponsor

What do Letsencrypt's customers say about them?

Review Score

4.3/5

Total Reviews

7

Info

Let's Encrypt
5 Star
100.0%
4 Star
0.0%
3 Star
0.0%
2 Star
0.0%
1 Star
0.0%
Read reviews that mention
Ben

It is good.

Reviewed on 2020-06-24T12:36:29

It is very good. I like it a lot. The thing that is very good about it is that it makes your site secured.They also gave me a padlock and a giant sign that says "secure" on it and I like padlocks and signs that say "secure" on them.
read more
Root Layer

It is free and secured

Reviewed on 2019-01-02T07:51:47

It is free and secured. Recommended.
Spooky Fish UK

Excellent!

Reviewed on 2018-08-28T15:28:11

I got a free SSL certificate for my website. Within 2 minutes, my website is now secure.And it's really easy with 100WebSpace too!
read more
Arcenas 090

Best free Trusted SSL CA

Reviewed on 2018-06-09T13:29:26

Best free Trusted SSL CA! ? You'll get all SSL certificate for free and you can even get a free wildcard and multidomain! Thanks for the service and your existence,it is very much appreciated! ?
read more
Paul

Thanks for service

Reviewed on 2018-05-11T00:24:20

Thanks for service. Keep it up
Sebastian

Really useful service

Reviewed on 2018-05-11T00:17:31

Really useful service. Thanks
Kieran

Excellent service

Reviewed on 2018-05-11T00:14:23

Excellent service, it eradicates the need to buy an SSL Certificate for each domain you own,or a wildcard SSL which can cost a lot.
read more

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