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Sometimes publishers unknowingly include video urls in their sitemap that are robots.txt disallowed .

有时发布者在不知情的情况下在其网站地图中包含被robots.txt文件禁止的视频网址。

Mod_rewrite is an apache module that allows for server-side manipulation of requested urls .

mod_rewrite的是一个apache模块，可使服务器操纵请求的网址。

Chief among these are shortened urls , which are common in social media messaging .

这类攻击的主要手段是短网址，它们常常出现在社交媒体的消息中。

The emails generate terribly long urls that look ugly in facebook and don 't include any thumbnail images .

电子邮件里面生成的照片分享网址可能很长，在facebook上看起来很糟糕，也无法显示任何缩略图。

It doesn 't take much effort to test display urls .

测试显示链接并不需要花费太多的努力。