Please do the following to change the crawl rate for Google:
1. On the Webmaster Tools Home page, click the site you want.
2. Under Configuration, click Settings.
3. In the Crawl rate section, select the option you want.
How do I change Google's crawl rate?
1. On the Webmaster Tools Home page, click the site you want.
2. Under Configuration, click Settings.
3. In the Crawl rate section, select the option you want.