I made a webpage which can provide some direct downloads. Therefore I only want real human, not crawler, to download my files. I tried to use Google reCAPTCHA but it is part of the webpage - visitors can still use the download links and doesn't have to worry about the reCAPTCHA at all. Is there a way to mandate visitors to pass the verification first? For example, is it possible to pop up reCAPTCHA before the whole page is loaded? If that's doable, how can I do it? Thanks!
我制作了一个可以提供直接下载的网页。所以我只想要真正的人类，而不是爬虫，下载我的文件。我试着使用谷歌验证码，但它是网页的一部分——访问者仍然可以使用下载链接，而且根本不用担心重新验证码。是否有办法让访问者首先通过验证?例如，是否可以在加载整个页面之前弹出验证码?如果这是可行的，我怎么做呢?谢谢!
1 个解决方案
#1
1
What I can recommend here is the captcha form be on the current page that you have and create a new page with the download links that's not indexable.
我在这里推荐的是captcha表单在当前页面上，并创建一个新的页面，下载链接是不可索引的。
Upon authorizing the captcha code, use header('Location: download.php'); or something similar to redirect the user.
在授权captcha代码时，使用header('Location: download.php');或者类似于重定向用户的东西。
A captcha before loading a webpage is possible, but it always uses client side code such as javascript which bots can easily bypass.
一个captcha在加载网页之前是可能的，但它总是使用客户端代码，比如javascript，机器人可以轻松绕过。
#1
1
What I can recommend here is the captcha form be on the current page that you have and create a new page with the download links that's not indexable.
我在这里推荐的是captcha表单在当前页面上，并创建一个新的页面，下载链接是不可索引的。
Upon authorizing the captcha code, use header('Location: download.php'); or something similar to redirect the user.
在授权captcha代码时，使用header('Location: download.php');或者类似于重定向用户的东西。
A captcha before loading a webpage is possible, but it always uses client side code such as javascript which bots can easily bypass.
一个captcha在加载网页之前是可能的，但它总是使用客户端代码，比如javascript，机器人可以轻松绕过。