CAPTCHA Usage Distribution in the Top 1 Million Sites

Top In CAPTCHA Usage Distribution in the Top 1 Million Sites

Technology	Websites	%
reCAPTCHA	242,550	24.26
SI CAPTCHA	1,256	0.13
hCaptcha	887	0.09
Math Captcha	641	0.06
Human Presence	205	0.02
WP reCAPTCHA	140	0.01
Tencent Waterproof Wall	123	0.01
KeyCAPTCHA	61	0.01
Geetest	55	0.01
Are You a Human	51	0.01
SnapHost	22	0
Ding Xiang	17	0
Sweet Captcha	16	0
Vaptcha	2	0
Hashcash	2	0
EasyCaptchas.com	1	0

306,760 Detections

of CAPTCHA in the Top 1 Million Sites.

reCAPTCHA is currently the most popular technology in this category.