1. ReCAPTCHA The reCAPTCHA 库 让你可以为网站创建高级的CAPTCHA系统,这个系统其实是用来生成验证信息的,甚至包括语音验证,下图就是个好例子。 当然还有reCAPTCHA 服务可以使用,其提供易用的免费API,值得在你的网站试试。 The reCAPTCHA library allows you to integrate an advanced CAPTCHA system on your website, which helps keep spam bots from posting on your website. The visual CAPTCHA also includes a helpful audio feature. In addition to the reCAPTCHA service, the library also includes an API for the “Mailhide” service which hides emails from spammers. The API is free and easy to implement on your site and also gives back to the community as it translates scanned books. 下载 ReCAPTCHA | 获得 API Key | 文档 2. Akismet Akismet 是个供小站点使用的免费服务,用来修改规范将加入数据库的评论(防止恶意评论)。这个库一直在改善。 Akismet is a free service that can be used on most small sites – or used on larger sites for a small fee. The library works by comparing comments to a database of existing spam comments provided by other users. The library can then decide to flag the comment for mod...