How to get rid of a bot that constantly registers?

Question

Fight against spam

The bot is constantly registered on the site!
put Captcha from Google, but also bypassed! What to do?

Answer 1

The address of the page in the studio. I would pay dearly for a bot that can bypass recaptcha.

Answer 2

Do your own background check. For example, ask the bot a question: "What is two plus three." If you dream up, you can come up with very original questions. I have bots on my site are not hooligans. It seems to be a simple question, but since only I have such protection, no one will develop a cracker for a single site.

Answer 3

First, add a question on the random page:
1. One plus two
2. Seven minus five
3. One hundred divided by two
4. A thousand padit by three (possible with errors - +1 problem for spammers)

Answer 4

Now the situation could be, but before the robots did not really process scripts. And it could be used surprisingly simply and effectively. For example, I did this: I created an invisible field in the form than that initialized. Then in the script I placed the current time in the field. And on the server I compared, with some delta, the transferred time with the time on the server. If it more or less coincided, then they wrote from a real browser. It was surprisingly effective, and for many years robots could not write to the site, although there was no captcha. But that was some time ago, now perhaps a new generation of robots against which this will not work.

Answer 5

Email registration verification.