Bot-detection challenge service used to gate forms and logins against automated abuse.
Get told when a new site ships with Google reCAPTCHA.
Stackdar watches every launch we detect and sends you the ones using Google reCAPTCHA, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work45,050 sites
43,445 found by StackScope, 1,605 via launch platforms
- StackScope Wider Web 41,597
- StackScope Discovery (Indie) 1,848
- Product Hunt 1,369
- PeerPush 153
- Hacker News 50
- Other 33
Google reCAPTCHA has been detected on 45,050 launches we've crawled. The 7-day rolling share is 1.8%, roughly steady week on week. Most recent detection: Run the whole hospital. Let doctors prescribe their way., today.
It's most commonly paired with Google Analytics, Google Search Console, and Google Tag Manager. By product type, the launches using it are most often Health (23%), E-commerce (13%), and Content (11%). By estimated origin, the United States leads (35%), ahead of India (21%). By domain ending, launches using it are 3.3 times as likely as the average launch to live on a .store domain. The 1,599 scored launches using Google reCAPTCHA average a StackScope score of 7.0 out of 10, against 6.4 across all launches we score.
What kind of products ship with Google reCAPTCHA
11,634 launches
Domain endings using Google reCAPTCHA
44,643 sites
- .com 64.01%
- .uk 4.47%
- .ca 4.26%
- .org 3.90%
- .co 2.19%
- .in 2.08%
- .net 2.06%
- .online 1.63%
- .store 1.59%
- .app 1.53%
- .ai 1.09%
- .au 1.06%
- .site 0.96%
- .io 0.92%
- .nz 0.87%
Country
388 of 45,050 sites, where we are confident of the country.
-
United States 34.54%
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India 20.62%
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United Kingdom 9.28%
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Canada 4.12%
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Australia 3.61%
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Singapore 3.35%
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Nigeria 2.84%
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Germany 2.06%
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Netherlands 1.80%
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France 1.55%
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United Arab Emirates 1.29%
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Spain 1.29%
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Brazil 0.77%
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Japan 0.77%
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New Zealand 0.77%
Share of new sites using Google reCAPTCHA
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.
⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.
Security leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – | HSTS | 46.84% | 91.04% |
| #2 | – |
|
11.02% | 21.41% |
| #3 | – |
|
1.81% | 3.52% |
| #4 | – |
|
0.09% | 0.18% |
| #5 | ▲1 |
|
0.07% | 0.13% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Security tool.Google reCAPTCHA is typically used alongside HSTS rather than instead of it. All 246 in Security →
Recent launches we can show
3,453 of the 45,050 sites using Google reCAPTCHA are product launches we list individually. The other 41,597 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
PC Part Compatibility Tool
PhonoLogic
Blogger Bank
Showing the most recent 12 of 3,453.
The StackScope API serves all 45,050 sites using Google reCAPTCHA, filterable and exportable, from £15 a month.