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	19%	7.3%	15%	17%	17%	6.8%	15%
2	hCaptcha	8.4%	1.7%	4%	4.7%	3.8%	2.9%	4.8%
3	Cloudflare Turnstile	1.3%	1%	1.2%	1.3%	1.1%	0.9%	1.1%
4	Friendly Captcha	0.1%	0.1%	0.1%	<0.1%	0.2%	<0.1%	<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	4.5%	8.1%	19%
2	hCaptcha	0%	1.9%	8.4%
3	Cloudflare Turnstile	0%	0.5%	1.3%
4	Friendly Captcha	0%	0%	0.1%
	Sites measured	66	931	11,909

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	20%	16%	−3.4
1	Google reCAPTCHA	19%	15%	−3.1
2	hCaptcha	8.4%	5%	−3.4
3	Cloudflare Turnstile	1.3%	0.8%	−0.5
4	Friendly Captcha	0.1%	<0.1%	−0.1
	Sites measured	11,909	21,114

Our crawler: 11,909 sites · United Kingdom · updated 23 Oct 2026 · Methodology