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Sites using Clerk

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

#3 of 118 in Auth Tracked since Apr 2026 Last seen: Sep 1, 2026 Website: clerk.com
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14,289 sites

12,065 found by StackScope, 2,224 via launch platforms

StackScope Discovery (Indie) 8,540 StackScope Wider Web 3,525 Product Hunt 1,755 PeerPush 229 Other 122 Hacker News 118
  • StackScope Discovery (Indie) 8,540
  • StackScope Wider Web 3,525
  • Product Hunt 1,755
  • PeerPush 229
  • Other 122
  • Hacker News 118
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.4% -0.0pp
Most used with Cloudflare, Cloudflare Bot Management, HSTS
Top product types Productivity, Marketing, Finance
Green hosting 31% vs 45% avg

Clerk has been detected on 14,289 launches we've crawled. The 7-day rolling share is 0.4%, roughly steady week on week. Most recent detection: CorpusBrain — Chat with your knowledge base, today.

It's most commonly paired with Cloudflare, Cloudflare Bot Management, and HSTS. By product type, the launches using it are most often Productivity (13%), Marketing (12%), and Finance (11%). By estimated origin, the United States leads (41%), ahead of the United Kingdom (14%).

What kind of products ship with Clerk

8,191 launches

Productivity
13.08%
Marketing
12.01%
Finance
10.83%
AI
10.27%
Education
10.05%
Developer Tools
9.57%
Health
6.48%
Content
5.79%
Hiring & HR
5.36%
E-commerce
4.72%
Social
4.50%
Games
3.38%
Design
1.78%
Directory
1.26%
Crypto
0.92%

Domain endings using Clerk

14,196 sites

  • .com 37.78%
  • .app 18.08%
  • .ai 8.63%
  • .io 5.80%
  • .dev 3.73%
  • .co 2.53%
  • .online 2.44%
  • .xyz 2.25%
  • .in 2.20%
  • .org 1.88%
  • .net 1.79%
  • .tech 1.47%
  • .ca 1.44%
  • .me 1.32%
  • .space 1.20%

Country

451 of 14,289 sites, where we are confident of the country.

  • United States United States 41.02%
  • United Kingdom United Kingdom 13.97%
  • India India 12.20%
  • Australia Australia 3.77%
  • Canada Canada 2.44%
  • France France 2.00%
  • Israel Israel 2.00%
  • Brazil Brazil 1.33%
  • Germany Germany 1.33%
  • Spain Spain 1.33%
  • Sweden Sweden 1.33%
  • Italy Italy 1.11%
  • Romania Romania 1.11%
  • Cyprus Cyprus 0.89%
  • Ireland Ireland 0.89%

Share of new sites using Clerk

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

0.4%
last 7 days
-0.0pp vs prior week
14,289
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. 5% 3% 0% Apr May Jun Jul Aug Jun 22, 2026: Improved detection coverage for this technology. Weekly averages before this point, daily after. Jun 3 · 28 / 714 = 3.9% Jun 4 · 18 / 599 = 3.0% Jun 5 · 16 / 581 = 2.8% Jun 6 · 11 / 436 = 2.5% Jun 7 · 18 / 404 = 4.5% Jun 8 · 13 / 515 = 2.5% Jun 9 · 22 / 876 = 2.5% Jun 10 · 18 / 722 = 2.5% Jun 11 · 15 / 577 = 2.6% Jun 12 · 12 / 449 = 2.7% Jun 13 · 4 / 380 = 1.1% Jun 14 · 5 / 345 = 1.4% Jun 15 · 14 / 532 = 2.6% Jun 16 · 36 / 1052 = 3.4% Jun 17 · 24 / 907 = 2.6% Jun 18 · 13 / 674 = 1.9% Jun 19 · 13 / 547 = 2.4% Jun 20 · 10 / 443 = 2.3% Jun 21 · 5 / 383 = 1.3% Jun 22 · 19 / 576 = 3.3% Jun 23 · 17 / 900 = 1.9% Jun 24 · 21 / 737 = 2.8% Jun 25 · 10 / 618 = 1.6% Jun 26 · 12 / 534 = 2.2% Jun 27 · 8 / 431 = 1.9% Jun 28 · 12 / 383 = 3.1% Jun 29 · 22 / 503 = 4.4% Jun 30 · 18 / 801 = 2.2% Jul 1 · 17 / 795 = 2.1% Jul 2 · 14 / 604 = 2.3% Jul 3 · 11 / 499 = 2.2% Jul 4 · 8 / 411 = 1.9% Jul 5 · 11 / 367 = 3.0% Jul 6 · 14 / 551 = 2.5% Jul 7 · 19 / 1171 = 1.6% Jul 8 · 192 / 12589 = 1.5% Jul 9 · 276 / 23745 = 1.2% Jul 10 · 230 / 22551 = 1.0% Jul 11 · 189 / 15979 = 1.2% Jul 12 · 215 / 20291 = 1.1% Jul 13 · 210 / 20922 = 1.0% Jul 14 · 187 / 20408 = 0.9% Jul 15 · 149 / 17242 = 0.9% Jul 16 · 145 / 14264 = 1.0% Jul 17 · 174 / 19732 = 0.9% Jul 18 · 224 / 22700 = 1.0% Jul 19 · 245 / 26075 = 0.9% Jul 20 · 226 / 22586 = 1.0% Jul 21 · 196 / 21648 = 0.9% Jul 22 · 183 / 23202 = 0.8% Jul 23 · 163 / 16863 = 1.0% Jul 24 · 115 / 12855 = 0.9% Jul 25 · 66 / 8946 = 0.7% Jul 26 · 158 / 19976 = 0.8% Jul 27 · 241 / 33864 = 0.7% Jul 28 · 262 / 38221 = 0.7% Jul 29 · 284 / 50103 = 0.6% Jul 30 · 255 / 43951 = 0.6% Jul 31 · 306 / 51109 = 0.6% Aug 1 · 294 / 50473 = 0.6% Aug 2 · 254 / 49661 = 0.5% Aug 3 · 287 / 48190 = 0.6% Aug 4 · 206 / 37325 = 0.6% Aug 5 · 167 / 32705 = 0.5% Aug 6 · 193 / 36580 = 0.5% Aug 7 · 178 / 37887 = 0.5% Aug 8 · 176 / 39680 = 0.4% Aug 9 · 187 / 34206 = 0.5% Aug 10 · 173 / 28846 = 0.6% Aug 11 · 207 / 32016 = 0.6% Aug 12 · 183 / 33478 = 0.5% Aug 13 · 244 / 49910 = 0.5% Aug 14 · 218 / 51427 = 0.4% Aug 15 · 226 / 51491 = 0.4% Aug 16 · 291 / 51803 = 0.6% Aug 17 · 208 / 41402 = 0.5% Aug 18 · 210 / 53842 = 0.4% Aug 19 · 249 / 49411 = 0.5% Aug 20 · 306 / 66828 = 0.5% Aug 21 · 383 / 90356 = 0.4% Aug 22 · 308 / 91513 = 0.3% Aug 23 · 308 / 90226 = 0.3% Aug 24 · 305 / 78835 = 0.4% Aug 25 · 242 / 69245 = 0.3% Aug 26 · 239 / 65052 = 0.4% Aug 27 · 294 / 83366 = 0.4% Aug 28 · 319 / 83300 = 0.4% Aug 29 · 301 / 84152 = 0.4% Aug 30 · 315 / 92064 = 0.3% Aug 31 · 311 / 88497 = 0.4%
Mar 30, 2026 90 days Aug 31, 2026

The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

⋮ Jun 22, 2026: Improved detection coverage for this technology.

Auth leaders

Tool % of launches % of category
#1 – Google Sign-In 0.73% 35.52%
#2 ▲1 Auth.js 0.59% 28.73%
#3 ▼1 Clerk Current page 0.58% 28.20%
#4 – Google Identity Platform 0.08% 3.75%
#5 ▼1 Google OAuth 0.04% 1.94%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Auth tool.The most common alternatives to Clerk among indie launches are Google Sign-In and Google OAuth. All 118 in Auth →

Often used with

Tool Launches
Cloudflare 1,969
Cloudflare Bot Management 1,930
HSTS 1,868
Tailwind CSS 1,740
React 1,592

Tools most often detected on the same launches as Clerk.

Recent launches we can show

10,764 of the 14,289 sites using Clerk are product launches we list individually. The other 3,525 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works

CorpusBrain — Chat with your knowledge base Sep 1, 2026 Productivity Closet Try-On — Your Private AI Wardrobe & Virtual Try-On Sep 1, 2026 Dukink — One link. Zero fluff. Sep 1, 2026 Marketing WrestleOS — Built for the mat Sep 1, 2026 Greenlit — work starts when they pay Sep 1, 2026 Finance Tea Time Sep 1, 2026 Rysonance — Replies that sound like you wrote them Sep 1, 2026 Quotebacked — competitive intelligence you can defend Sep 1, 2026 Marketing Pip — Present at the Speed of Thought Sep 1, 2026 Productivity Reload Fantasy Sep 1, 2026 Games CreatorTrax Sep 1, 2026 Content DealFlow Tracker Sep 1, 2026 Finance

Showing the most recent 12 of 10,764.

The StackScope API serves all 14,289 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.