Clerk on new websites

1. About 1 in 310 websites that went live in the last 30 days use Clerk (0.3%).^[1]
2. It is the second most common authentication service on new sites. Google Sign-In appears on about 3.5 times as many.
3. Half of new Clerk sites also use Next.js.

The line is the 7-day average share of new sites that use Clerk, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Google Sign-In	1.7%	62.3%
2	▲1	Clerk	0.5%	16.7%
3	▼1	Auth.js	0.4%	15.7%
4	–	Google Identity Platform	0.1%	2.3%
5	▲4	Privy	<0.1%	1.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Auth tool. The most common alternatives to Clerk on new websites are Google Sign-In and Auth.js. All 172 in Auth

Tool	Sites with both	vs all new sites	Bar
Next.js	14,456	3.8x
Vercel	12,656	3.5x
Lucide Icons	14,006	3.2x
Tailwind CSS	18,392	2.7x
React	18,108	2.5x

Tools that turn up far more often on Clerk sites than on new sites in general, and how many times as common each one is there.

18,660 of the 27,393 sites using Clerk are product launches we list individually. The other 8,733 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

• GitFolio gitfolio.in
• AgentReady.me agentready.me
• IndieStore indiestore.co

Site	Found	Also detected
Up Up and Away — Get abroad-ready in an afternoon upupandaway.work	Oct 20
ExpoKit — UI components, charts & templates for Expo expokit.in · Developer Tools · India	Oct 20
Your passport · wayfare wayfaredeli.app · South Africa	Oct 20
One Million Cells — The Living 1,000,000 Cell Grid 1milllioncells.com	Oct 20
BookForge — Plan, write and publish books on your Mac book-forge.com · Content	Oct 20
Luggage Check luggagecheck.fyi	Oct 20
GitFolio gitfolio.in · India	Oct 20
AgentReady.me agentready.me	Oct 20
IndieStore indiestore.co · Directory	Oct 20
Soltura — English with AI + a human tutor solturasystem.com · Education	Oct 20
TMT — The podcast encyclopedia tenmintalx.com · Content	Oct 20
何切る.com nanikiru-mondai.com	Oct 20

Showing the most recent 12 of 18,660.

Watches, exports and the API give you all 27,393 sites using Clerk, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
3. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.