Add captcha
Completely Automated Public Turing test to tell Computers and Humans Apart
Add captcha for your needs uses on your websites, software’s and apps.
Full supports and help in develop unique for your users and your needs.
Different types of captchas and verifications.
We will be happy to help you with any request by email: addcaptcha@mailerfor.com
CAPTCHA on computers is a solution challenge test that aims to ensure that the answer is not generated using a computer.
A mechanism usually involves a computer that produces a random question, one that is easy for a person to answer but very difficult for a computer.
The CAPTCHA test usually asks the user to type letters or numbers that appear distorted on the screen.
Computer test used to determine whether a user of a system is a human or a computer.
Exploiting vulnerabilities
If the web programmer is insufficiently qualified, the bot can give an answer without passing the test. For example, for any information contained on the page.
Guessing
It is used primarily for “non-traditional” captchas with a small number of response options. The robot guesses by sending random answers, and some of them turn out to be correct.
Using databases
This approach is effective when questions are prepared by an administrator rather than machine generated. With the help of databases, you can go through many non-traditional captcha options.
Automatic recognition
There are programs that recognize specific captcha implementations. In addition, it is possible to connect modules from general-purpose text recognition programs to third-party programs for recognizing captcha images.
Recognition
someone else's hands – There is a way of recognition that uses a human resource from highly visited sites. The robot downloads the captcha from the required Internet service and presents it to the site visitor.
Software Recognition
Special software for specific captcha designed to identify commonly used software on the market for which appropriate solutions have been developed to solve these problems.