A Deep Dive into Google's Crawling System. This massive system of 机器人, also known as spiders, 负责 搜索引擎 by 索引 billions of sites. 理解 the inner workings of this crawling system is essential for any website who desires to enhance their 排名. 谷歌蜘蛛池 主要 crawling web content and 分析 them to 确定 their topic.