Privacy-friendly bot-detection challenge service, marketed as a Google reCAPTCHA alternative.
Get told when a new site ships with hCaptcha.
Stackdar watches every launch we detect and sends you the ones using hCaptcha, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work2,012 sites
1,802 found by StackScope, 210 via launch platforms
- StackScope Wider Web 1,449
- StackScope Discovery (Indie) 353
- Product Hunt 184
- Hacker News 13
- PeerPush 10
- Other 3
hCaptcha has been detected on 2,012 launches we've crawled. The 7-day rolling share is 0.1%, roughly steady week on week. Most recent detection: Ostress — Network & Security Stress Testing | Firewall, WAF, DDoS Capacity Tests, today.
It's most commonly paired with Cloudflare, Google Analytics, and Google Tag Manager. By product type, the launches using it are most often E-commerce (17%), Developer Tools (15%), and Marketing (10%). By estimated origin, the United States leads (29%), ahead of the United Kingdom (15%). By domain ending, launches using it are 7.6 times as likely as the average launch to live on a .store domain.
What kind of products ship with hCaptcha
803 launches
Domain endings using hCaptcha
2,013 sites
- .com 48.83%
- .site 4.77%
- .co 4.62%
- .app 4.42%
- .store 3.68%
- .in 2.73%
- .dev 2.68%
- .uk 2.63%
- .ca 2.58%
- .org 2.29%
- .io 2.14%
- .ai 1.94%
- .online 1.74%
- .net 1.59%
- .xyz 1.34%
Country
34 of 2,012 sites, where we are confident of the country.
-
United States 29.41%
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United Kingdom 14.71%
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Canada 8.82%
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France 5.88%
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India 5.88%
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South Korea 5.88%
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Tunisia 5.88%
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United Arab Emirates 2.94%
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Switzerland 2.94%
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Israel 2.94%
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Italy 2.94%
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Cayman Islands 2.94%
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Portugal 2.94%
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Romania 2.94%
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Singapore 2.94%
Share of new sites using hCaptcha
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 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.
Captcha leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
|
1.27% | 94.36% |
| #2 | – |
|
0.08% | 6.05% |
| #3 | – |
|
<0.01% | 0.32% |
| #4 | – |
|
<0.01% | 0.20% |
| #5 | ▲11 | TNcode | <0.01% | 0.12% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Captcha tool.hCaptcha is typically used alongside Cloudflare Turnstile rather than instead of it. All 39 in Captcha →
Recent launches we can show
563 of the 2,012 sites using hCaptcha are product launches we list individually. The other 1,449 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
Farm Planner Online
Showing the most recent 12 of 563.
The StackScope API serves all 2,012 sites using hCaptcha, filterable and exportable, from £15 a month.