About Google Spider

[Artience]

Hello, people!

I have some questions regarding on Google spider.

Many people are saying that "Google spiders only have US IP address."

Is this really true?

But I also saw video from Google's offical blog and it said "Google spider come from all around the world."

At this point I am really confused.

Q1) I researched and it seems like Google spiders have only US IP address. THen  what does exactly mean by "Google spider come from all around the world."?

Q2) If Google spider have only US IP address, what happen to site which use IP delivery?

Is this means that Google spider always redirect to us site since they only have US IP?

Can anyone help me to understand??

One more questions! When Google analyzing for cloaking issue, do you think Google analyze when spider crawls the site or after they crawled the site?

[JamesNorquay]

I do not believe this is true, Google has data centers all over the world in which they crawl from.

Google does not only have spiders crawling from US data centers.

I also have the feeling crawls are based on many factors such as link diversity per region, TLD of domain per region, PR user (still a crawling factor imo) and many more factors.

Overall do not stress Google can crawl from various regions all over the globe, I would be more worried about geo server location and TLD of your domain and also local links.

Kind Regards,

James Norquay.

[RyanKent]

I think some of the confusion may be due to Google's primarily using IP addresses assigned to their headquarters in Mountain View, California. Google has many (around 20) data centers located outside the US. I recall reading an article whereby at times they used their Mountain View IPs from centers around the world. For security reasons they do not wish the location of all their data centers to be known.

I researched this topic before and I was unable to locate any official information from Google. It would only seem reasonable they crawl from all over the world. If they didn't, then a lot of sites which use geo-based targeting for site navigation would not have most of their content indexed. While it's true a sitemap could be used to overcome the issue, many sites do not use sitemaps and they still get indexed.