Googlebot determines the range of crawl rate values you’ll have available in Webmaster Tools. This is based on our understanding of your server’s capabilities. This range may vary from one site to another and across time based on several factors. Setting the crawl rate to a lower-than-default value may affect the coverage and freshness of your site in Google’s search results. However, setting it to higher value than the default won’t improve your coverage or ranking. If you do set a custom crawl rate, the new rate will be in effect for 90 days after which it resets to Google’s recommended value.Written By Pooja Shah, Software Engineer, Webmaster Tools Team























