Let's Encrypt on new websites

1. Let's Encrypt appeared on 3 new sites in the last 30 days.^[1]

The line is the 7-day average share of new sites that use Let's Encrypt, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	HSTS	47.5%	87.4%
2	–	Cloudflare Bot Management	13.8%	25.4%
3	–	Google reCAPTCHA	1.9%	3.5%
4	▲1	Anubis	0.1%	0.2%
5	▼2	DDoS-Guard	0.1%	0.1%
6	▲1	BitNinja	0.1%	0.1%
7	–	PerimeterX	0.1%	0.1%
8	▼1	Firebase App Check	<0.1%	0.1%
9	▲1	Altcha	<0.1%	0.1%
10	▲1	CleanTalk	<0.1%	<0.1%
11	▼3	TrustedSite	<0.1%	<0.1%
12	▲4	Cloudflare Waiting Room	<0.1%	<0.1%
…
104	▲35	Let's Encrypt	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Security tool. Among September launches it ranked #94 in Security, up from #129 in August. All 402 in Security

3 of the 9 sites using Let's Encrypt are product launches we list individually. The other 6 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site	Found	Also detected
Free certificates, in your hands buymyssl.com · Developer Tools	Sep 13
AI Homestay Software India, Zero Commission myhomestay.ai	Sep 2
Cloud PBX, WebRTC & Business Voice siplix.cloud	Jul 8

Watches, exports and the API give you all 9 sites using Let's Encrypt, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.