CAPTCHA Usage Distribution in the Top 1 Million Sites

Top In CAPTCHA Usage Distribution in the Top 1 Million Sites

Technology	Websites	%
reCAPTCHA	120,039	12
Are You a Human	4,632	0.46
SI CAPTCHA	1,338	0.13
Math Captcha	771	0.08
Human Presence	195	0.02
WP reCAPTCHA	176	0.02
GEETEST	100	0.01
Tencent Waterproof Wall	91	0.01
Sweet Captcha	21	0
SnapHost	13	0
KeyCAPTCHA	6	0
Vaptcha	6	0
Hashcash	2	0
EasyCaptchas.com	1	0

152,726 Detections

of CAPTCHA in the Top 1 Million Sites.

reCAPTCHA is currently the most popular technology in this category.