Googlebot can crawl the first 15MB of an HTML file orĪny resources referenced in the HTML such as images, videos, CSS, and JavaScript are fetched With a 421 HTTP status code when Googlebot attempts to crawl your site over HTTP/2. To opt out from crawling over HTTP/2, instruct the server that's hosting your site to respond Googlebot, but otherwise it doesn't affect indexing or ranking of your site. This may save computing resources (for example, CPU, RAM) for the site and However, starting November 2020, Googlebot mayĬrawl sites that may benefit from it overīy the site. Generally, Googlebot crawls over HTTP/1.1. If your site is having trouble keeping up with Google's crawling requests, Is to crawl as many pages from your site as we can on each visit without overwhelming your Show visits from several machines at, all with the Googlebot user agent. Also, to cut down on bandwidth usage, we run manyĬrawlers on machines located near the sites that they might crawl. Googlebot was designed to be run simultaneously by thousands of machines to improve
However, due to delays it's possible that the rate will appear to be slightly higher In both cases, the minorityĬrawler crawls only URLs that have already been crawled by the majority crawler.įor most sites, Googlebot shouldn't access your site more than once every few seconds onĪverage. The majority of crawls will be made using the desktop crawler. For sites that haven't yet been converted, On Google, then the majority of Googlebot crawl requests will be made using the mobileĬrawler, and a minority using the desktop crawler. Robots.txt, and so you cannot selectively target either Googlebot Smartphone or Googlebot Desktop However, both crawler types obey the same product token (user agent token) in YouĬan identify the subtype of Googlebot by looking at the Your website will probably be crawled by both Googlebot Desktop and Googlebot Smartphone. Simulates a user on desktop, and a mobile crawler that simulates a user on a mobile device. Googlebot is the general name for two different types of crawlers: a desktop crawler that Googlebot is the generic name for Google's
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