Hydra - captcha
A flexible plugin for checking users that they are not robots. Effectively copes with the task of blocking robots during registration. Suitable for any forms and sites. Visual adjustment of verification codes from the most easily readable to complex, which makes it almost impossible for robots to recognize the image.
Additionally, a trap field is invisible to people and a delay before loading verification codes.
GD support required (present on all modern servers).
- Setting the color scheme;
- Choice of used characters;
- The choice of camouflage;
- Hidden field trap;
- Delay in loading verification code;
- MD5 encryption.