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letsencrypt.org

Let's Encrypt

Who runs Let's Encrypt, what it tracks and what it costs, and the 20 closest SSL/TLS certificate authority alternatives.

Who’s behind it
Not stated
Online since
Unknown
Trackers
Prices
No pricing page
Last price change
–
Closest alternative
ZeroSSL

Measured from Let's Encrypt’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.

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Visit Let's Encrypt

01 · Who’s behind it

Who runs Let's Encrypt

Let's Encrypt letsencrypt.org

Let's Encrypt is a free, automated, and open Certificate Authority brought to you by the nonprofit Internet Security Research Group (ISRG). Read all about our work in our Annual Report.

Wikidata: certificate authority launched in 2015

Company
No imprint we could read
Online since
Not in the Internet Archive
Audience
In English

02 · Privacy

What Let's Encrypt tracks

What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.

trackers that follow visitors

None of the 20 alternatives below has fewer; 18 have more.

Privacy-friendly alternatives →
Cookie banner
None found

We found no trackers, ad pixels or third-party embeds on Let's Encrypt’s homepage.

03 · Alternatives

Alternatives to Let's Encrypt

No ad trackersRegistered in the EUFree planOnly in English

None of the 60 sites closest to Let's Encrypt match these filters. We read imprints and pricing pages once a week, so more sites qualify as we get to them.

04 · History

What changed

Price and policy history →

No changes yet. Each new crawl is compared with the last one, and what Let's Encrypt adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.

The full technology stack and search numbers · 5 technologies
Neighbours
k = 60
Sites searched
9,216
Vector
384-d
Query
39 ms

Built with

CSS & UI
  • Font Awesome asset https://letsencrypt.org/fontawesome-free-6.5.2-web/css/all.min.css
Live chat & support
  • Zendesk TXT v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:64.78.194.68 i…
Hosting
  • Netlify header x-nf-request-id: 01M6R294X135J5M97CCQHJDCQN
Email hosting
DNS hosting

Sitemaps

, 34 of them guides, blog or magazine pages.