10 free leads on us
reCAPTCHA v2.0
reCAPTCHA is a CAPTCHA-like system designed to establish that a computer user is human and, at the same time, assist in the digitization of books.
Top Competitors | Websites | Market Share | Vendor |
---|---|---|---|
![]() | 4,098,633 | 52.46% | |
![]() | 3,552,738 | 45.48% | |
![]() | 2,380 | 0.03% | |
![]() | 606 | <0.01% | |
![]() | 353 | <0.01% | |
![]() | 321 | <0.01% | |
![]() | 143 | <0.01% | |
![]() | 115 | <0.01% | |
![]() | 105 | <0.01% | |
![]() | 27 | <0.01% | |