深度解析: Understanding the Mechanics of Google's Crawler Distribution 。 Crawler Pool 是 Web Crawlers 为了 Efficiently Process 海量网页 而 构建的机制。它将 Websites 分配给 Various Crawlers ,以 Optimize Crawl Efficiency 。 check here Crawler Pool Usage| Search Ranking Factors 、Website Optimization 、搜索结果排