没有验证码的用户注册表格？ [英] user registeration form without captcha?

问题描述

我今天尝试注册Twitter，但我发现他们的注册表格没有验证码。表单网址为 https://twitter.com/signup 。我还注意到他们使用了如下所示的输入。

I was trying to sign-up Twitter today and I noticed that their registration form does not have a captcha. The form URL is https://twitter.com/signup. I also noticed that they used an input like below.

<input name="authenticity_token" type="hidden" value="ce803cee65a96aaa97bdf75da166599c3adc9ec8" />

这是一种什么样的方法？

what kind of method is this?

用户访问注册表时，他们是否在数据库中创建临时值？并在用户提交表单时检查它？

Do they create a temp value in their database when a user access the registration form? and check it when a user submit the form?

推荐答案

authenticity_token 是

查看此内容问题。

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