How Googlebot accesses your site

For most sites, Googlebot shouldn't access your site more than once every few seconds on average. However, due to benefits of social media marketing network delays, it's possible that the rate will appear to be slightly higher over short periods. In general, Googlebot should download only one copy of each page at a time. If you see that Googlebot is downloading a page multiple times, it's probably because the crawler was stopped and restarted.Googlebot was designed to be distributed on several machines to improve performance and scale as the web grows. Also, to cut down on bandwidth usage, we run many crawlers on machines located near the sites they're indexing in the network. Therefore, your logs may show visits from several machines at google.com, all with the user-agent Googlebot. Our goal is to crawl as many pages from your site as we can on each visit without overwhelming your server's bandwidth. Request a change in the crawl rate.

Blocking Googlebot from content on your site

It's almost impossible to keep a web server secret by not publishing links to using social media for marketing it. As soon as someone follows a link from your "secret" server to another web server, your "secret" URL may appear in the referrer tag and can be stored and published by the other web server in its referrer log. Similarly, the web has many outdated and broken links. Whenever someone publishes an incorrect link to your site or fails to update links to reflect changes in your server, Googlebot will try to download an incorrect link from your site.If you want to prevent Googlebot from crawling content on your site, you have a number of options, including using robots.txt to block access to files and directories on your server.Once you've created your robots.txt file, there may be a small delay before Googlebot discovers your changes.
If Googlebot is still crawling content you've blocked in robots.txt, check that the robots.txt is in the correct location. It must be in the top directory of the server (e.g., www.myhost.com/robots.txt); placing the file in a subdirectory won't have any effect.If you just want to prevent the "file not found" error messages in your web server log, you can create an empty file named robots.txt. If you want to prevent Googlebot from following any links on a page of your site, you can social media marketing software use the nofollow meta tag. To prevent Googlebot from following an individual link, add the rel="nofollow" attribute to the link itself.