CAPTCHA in the UK: market share ranking

Challenges on forms and pages.

#	Technology	United Kingdom	Global	Netherlands	Italy	Spain	Japan	Latin America
1	Google reCAPTCHA	14%	6.5%	12%	15%	17%	5.7%	14%
2	hCaptcha	4.1%	1%	2%	2.6%	2.4%	1.6%	3%
3	Cloudflare Turnstile	1.4%	1.2%	1.3%	1.4%	1.2%	0.9%	1.1%
4	Friendly Captcha	0.1%	0.1%	0.2%	<0.1%	0.2%	0%	<0.1%

By site popularity

Share of measured sites in each Tranco popularity band that use the technology: the top 1,000, 10,000 and 100,000 sites and the whole top million.

#	Technology	Top 10K	Top 100K	Top 1M
1	Google reCAPTCHA	5%	7.1%	14%
2	hCaptcha	0%	1%	4.1%
3	Cloudflare Turnstile	0%	0.7%	1.4%
4	Friendly Captcha	0%	0.1%	0.1%
	Sites measured	60	886	11,322

Popular sites vs local business websites

Popular: sites of United Kingdom from the Tranco top million. Local business: websites of companies with 1–20 locations in the country, taken from a business places directory (platforms, marketplaces and aggregators excluded).

#	Technology	Popular sites	Local business	Difference, pp
	Any CAPTCHA	16%	15%	−0.3
1	Google reCAPTCHA	14%	14%	0
2	hCaptcha	4.1%	2.8%	−1.3
3	Cloudflare Turnstile	1.4%	0.9%	−0.4
4	Friendly Captcha	0.1%	<0.1%	−0.1
	Sites measured	11,322	20,305

Our crawler: 11,322 sites · United Kingdom · updated 13 Nov 2026 · Methodology