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Clerk on new websites

Drop-in authentication and user management service for React, Next.js, and other modern frontends.

#2 of 170 in Auth In our data since Apr 2026 Last seen: Oct 16, 2026 Most recent launch: NextRoute: Route AI with confidence, Oct 16, 2026 Website: clerk.com

26,504 sites

23,691 found by StackScope, 2,813 via launch platforms

StackScope Discovery (Indie) 15,363 StackScope Wider Web 8,328 Product Hunt 2,068 Other 344 PeerPush 256 Hacker News 145
  • StackScope Discovery (Indie) 15,363
  • StackScope Wider Web 8,328
  • Product Hunt 2,068
  • Other 344
  • PeerPush 256
  • Hacker News 145
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web

About 1 in 310 websites that went live in the last 30 days use Clerk (0.3%).

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

Stackdar alerts

Get told when a new site ships with Clerk.

6,169 new sites with Clerk first seen in the last 30 days.

Stackdar watches every launch we detect and sends you the ones using Clerk, by email, Slack or webhook. On every plan, from £15 a month.

See how alerts work

Share of new sites using Clerk

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026.

0.3%
last 7 days
-0.1pp vs prior week
0.3%
30 days to Oct 15
-0.1pp vs 30 days before
26,504
sites all time
since Apr 2026
Clerk daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 10 September 2026: we improved our infrastructure to index new sites much sooner, often on the day they go live, so the cohort this share is measured against changes here. 5% 2% 0% Apr May Jun Jul Aug Sep Oct Weekly averages before this point, daily after. Jul 18 · 235 / 24700 = 1.0% Jul 19 · 256 / 27640 = 0.9% Jul 20 · 238 / 23851 = 1.0% Jul 21 · 202 / 22944 = 0.9% Jul 22 · 199 / 24372 = 0.8% Jul 23 · 173 / 18101 = 1.0% Jul 24 · 128 / 13980 = 0.9% Jul 25 · 75 / 9550 = 0.8% Jul 26 · 180 / 21750 = 0.8% Jul 27 · 274 / 37233 = 0.7% Jul 28 · 289 / 41885 = 0.7% Jul 29 · 331 / 53559 = 0.6% Jul 30 · 290 / 48256 = 0.6% Jul 31 · 345 / 56048 = 0.6% Aug 1 · 328 / 54886 = 0.6% Aug 2 · 280 / 53850 = 0.5% Aug 3 · 321 / 52614 = 0.6% Aug 4 · 234 / 40704 = 0.6% Aug 5 · 190 / 35346 = 0.5% Aug 6 · 217 / 39149 = 0.6% Aug 7 · 198 / 40250 = 0.5% Aug 8 · 200 / 42805 = 0.5% Aug 9 · 211 / 37777 = 0.6% Aug 10 · 201 / 32323 = 0.6% Aug 11 · 230 / 34557 = 0.7% Aug 12 · 205 / 37135 = 0.6% Aug 13 · 282 / 55468 = 0.5% Aug 14 · 263 / 56751 = 0.5% Aug 15 · 261 / 55907 = 0.5% Aug 16 · 321 / 56270 = 0.6% Aug 17 · 232 / 45696 = 0.5% Aug 18 · 237 / 56636 = 0.4% Aug 19 · 270 / 51679 = 0.5% Aug 20 · 322 / 68973 = 0.5% Aug 21 · 418 / 93843 = 0.4% Aug 22 · 334 / 94188 = 0.4% Aug 23 · 327 / 93592 = 0.3% Aug 24 · 321 / 81708 = 0.4% Aug 25 · 256 / 71529 = 0.4% Aug 26 · 263 / 66854 = 0.4% Aug 27 · 327 / 87832 = 0.4% Aug 28 · 364 / 87905 = 0.4% Aug 29 · 330 / 88061 = 0.4% Aug 30 · 369 / 100668 = 0.4% Aug 31 · 405 / 100235 = 0.4% Sep 1 · 388 / 103413 = 0.4% Sep 2 · 423 / 108914 = 0.4% Sep 3 · 408 / 103275 = 0.4% Sep 4 · 389 / 98530 = 0.4% Sep 5 · 397 / 102853 = 0.4% Sep 6 · 332 / 89271 = 0.4% Sep 7 · 311 / 86119 = 0.4% Sep 8 · 338 / 77964 = 0.4% Sep 9 · 294 / 75510 = 0.4% Sep 10 · 299 / 83643 = 0.4% Sep 11 · 255 / 85544 = 0.3% Sep 12 · 212 / 56763 = 0.4% Sep 13 · 209 / 57987 = 0.4% Sep 14 · 213 / 59224 = 0.4% Sep 15 · 252 / 58180 = 0.4% Sep 16 · 216 / 58939 = 0.4% Sep 17 · 206 / 56745 = 0.4% Sep 18 · 186 / 53080 = 0.4% Sep 19 · 153 / 45268 = 0.3% Sep 20 · 185 / 44755 = 0.4% Sep 21 · 188 / 51659 = 0.4% Sep 22 · 184 / 55401 = 0.3% Sep 23 · 190 / 58304 = 0.3% Sep 24 · 204 / 53457 = 0.4% Sep 25 · 189 / 50756 = 0.4% Sep 26 · 250 / 101513 = 0.2% Sep 27 · 205 / 52130 = 0.4% Sep 28 · 212 / 61105 = 0.3% Sep 29 · 237 / 77847 = 0.3% Sep 30 · 248 / 69707 = 0.4% Oct 1 · 233 / 69219 = 0.3% Oct 2 · 215 / 64714 = 0.3% Oct 3 · 184 / 53731 = 0.3% Oct 4 · 211 / 52048 = 0.4% Oct 5 · 251 / 63685 = 0.4% Oct 6 · 218 / 67582 = 0.3% Oct 7 · 227 / 67654 = 0.3% Oct 8 · 239 / 69304 = 0.3% Oct 9 · 203 / 70336 = 0.3% Oct 10 · 186 / 60630 = 0.3% Oct 11 · 189 / 65589 = 0.3% Oct 12 · 200 / 66620 = 0.3% Oct 13 · 203 / 70915 = 0.3% Oct 14 · 168 / 70641 = 0.2% Oct 15 · 189 / 93404 = 0.2%
Mar 30, 2026 90 days Oct 15, 2026

The shaded areas were measured against a different set of sites, so the line can step there without Clerk itself changing.

Coverage details

Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.

Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.

Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.

The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

What kind of sites use Clerk

14,136 sites with a known type, all time

Productivity
12.8%
Marketing
11.2%
Finance
11.2%
Education
10.2%
AI
8.5%
Developer Tools
8.2%
Health
7.5%
Content
6.0%
E-commerce
5.9%
Social
5.6%
Hiring & HR
5.0%
Games
4.0%
Design
1.9%
Directory
1.3%
Crypto
1.0%

Domain endings using Clerk

26,460 sites, all time

  • .com 47.7%
  • .app 13.9%
  • .ai 6.1%
  • .io 4.1%
  • .dev 2.7%
  • .org 2.4%
  • .net 2.3%
  • .co 2.0%
  • .in 2.0%
  • .online 1.9%
  • .uk 1.8%
  • .xyz 1.7%
  • .ca 1.3%
  • .tech 1.1%
  • .site 1.0%

Country

Country likely for 2,592 of 26,504 sites (9.8%), all time.

How we know

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.

  • United Kingdom United Kingdom 20.8%
  • United States United States 18.6%
  • India India 17.4%
  • Canada Canada 9.2%
  • France France 7.2%
  • Australia Australia 3.4%
  • Switzerland Switzerland 2.0%
  • Sweden Sweden 1.8%
  • Brazil Brazil 1.4%
  • New Zealand New Zealand 1.4%
  • Germany Germany 1.2%
  • Ireland Ireland 1.2%
  • South Korea South Korea 1.0%
  • Italy Italy 0.9%
  • Netherlands Netherlands 0.9%

Green hosting

2,813 checked sites since Apr 2026.

What this means

The share whose web host The Green Web Foundation lists as running on green energy, against the average for every new site we checked.

  • Clerk 31%
  • Average 47%

Auth leaders

Tool % of sitesall time % of categoryall time
#1 – Google Sign-In 1.7% 62.0%
#2 ▲1 Clerk Current page 0.5% 16.8%
#3 ▼1 Auth.js 0.4% 15.9%
#4 – Google Identity Platform 0.1% 2.3%
#5 ▲4 Privy <0.1% 1.1%

Percentages show all-time adoption across the new sites we track: the share 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 170 in Auth →

Often used with

Tool Sites vs all new sites
Next.js 14,126 3.8x
Vercel 12,394 3.6x
Lucide Icons 13,451 3.1x
Tailwind CSS 17,869 2.7x
React 17,656 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.

Recent launches using Clerk

18,176 of the 26,504 sites using Clerk are product launches we list individually. The other 8,328 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works

NextRoute: Route AI with confidence Oct 16, 2026 · Developer Tools Also detected Astro Bootstrap Cloudflare Resend Join the waitlist · TFT Agent Oct 16, 2026 Also detected Next.js React Vercel Bootstrap Ahorrá — sabé cuánto podés gastar hoy Oct 16, 2026 Also detected Next.js React Vercel Cloudflare Factory Raiders Oct 16, 2026 · Games Also detected Bootstrap Cloudflare GoDaddy DNS Lucide Icons ScanTracs Oct 16, 2026 · Marketing Also detected Bootstrap Google Cloud Google Fonts Lucide Icons Marcy Oct 16, 2026 Also detected React Bootstrap GoDaddy DNS Google Cloud Rolelog | A clear job application log Oct 16, 2026 · Hiring & HR Also detected Bootstrap Cloudflare Google Fonts Vite Ozil Goal — Turn one photo into your AI football moment Oct 16, 2026 · AI Also detected Bootstrap Cloudflare Personal Best Oct 16, 2026 · Health Also detected Google Cloud Google Fonts Lucide Icons Name.com SOBI360 | The off-market real estate marketplace. Oct 16, 2026 Also detected Bootstrap Google Fonts Lucide Icons Replit GuideSEO — Website Auditing & Action Plans Oct 16, 2026 · Marketing Also detected Next.js React Vercel Cloudflare oLembra · Lembretes e anotações pelo WhatsApp Oct 16, 2026 Also detected Bootstrap Cloudflare Google Fonts

Showing the most recent 12 of 18,176.

The StackScope API serves all 26,504 sites using Clerk, filterable and exportable, from £15 a month.

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.