Data Center Knowledge recently published a “Google Data Center FAQ”. As most other web geeks, we here at Pingdom tend to find this kind of information quite fascinating. We have extracted some interesting tidbits, and also used the information to construct a map with all current and under-construction Google data center locations that are known today.

So how many data centers do Google use, and where are they?

Google data center locations

If you include data centers that are under construction, Google has 19 locations in the US where they operate data centers, 12 in Europe, one in Russia, one in South America, and three in Asia. Not all of the locations are dedicated Google data centers, since they sometimes lease space in other companies’ data centers.

Above: Google data centers world wide.

Above: Google data centers in the USA.

Above: Google data centers in Europe.

We have created a map you can explore over at Wayfaring.

How much does Google spend on data centers?

According to Google’s earnings reports, they spent $1.9 billion on data centers in 2006, and $2.4 billion in 2007.

Google unveiled four new data center projects in 2007. Each has a cost estimate of $600 million, which will include everything from construction to equipment and computers.

Google’s criteria when selecting locations for data centers

• Large volumes of cheap electricity.
• Green energy. Focuses on renewable power sources.
• Proximity to rivers and lakes. They use a large amount of water for cooling purposes.
• Large areas of land. Allows for more privacy and security.
• The distance to other Google data centers (for fast connections between data centers).
• Tax incentives.

Above left: Google’s first production server. Above middle: Google’s The Dalles data center in Oregon. Above right: Close-up of a Google server rack.

What’s up next?

Google has been looking at sites in Asia, such as Taiwan and Malaysia. There are also reports of a possible data center in Lithuania (Eastern Europe). Google is even more secretive about their US locations, but they have bought 466 acres of land in Blythewood, South Carolina.

Google secrecy

Google has made it difficult both to find out where they keep their data centers and how many they have. One big reason for this is that almost all IP addresses that Google uses (and there are a lot of them) are listed to their Mountain View, California address, so just looking at IP addresses (with IP WHOIS or IP-to-location databases) won’t help you figure out where their data centers are or how many they have.

In addition to this, Google usually seeks permits for their data center projects using companies (LLCs) that don’t mention Google at all, for example Lapis LLC in North Carolina and Tetra LLC in Iowa.

Since Google tends to be quite secretive about their data centers in general, the information we have presented here most likely isn’t 100% complete.

Find out more

Check out the excellent Google Data Center FAQ over at Data Center Knowledge for more details and information.

If you have additional information about Google data centers, please share it in the comments.

As Super Bowl 46 is approaching, fans will flock to the Lucas Oil Stadium in Indianapolis, Indiana, and to TV sets around the world to follow the New York Giants battle it out with the New England Patriots.

Kickoff is scheduled for 6:30EST on Sunday, February 5, and we’re already monitoring Superbowl.com to see how the site will handle the event.

What team will win Super Bowl 46? How will the site cope? We can only wait to find out.

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Every Friday we bring you a collection of links to places on the web that we find particularly newsworthy, interesting, entertaining, and topical. We try to focus on some particular area or topic each week, but in general we will cover Internet, web development, networking, performance, and other geeky topics.h

This week we bring you a collection of articles focusing on cloud, with a few other topics thrown in to boot.

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Out of the 59 US-based e-commerce sites we monitored during the holiday season last year 28 scored a perfect 100% uptime for December.

Whether this helped spur on the booming sales in the US, we don’t know, but retail e-commerce spending in the US reached $37.2 billion for the November to December 2011 period. That was an increase of 15% from the same period in 2010.

We decided to dig into the numbers for these e-commerce sites to see how well they did in terms of uptime and performance. After massaging the data coming from our Pingdom probes, it turns out that the sites overall performed well during December 2011 in terms of uptime, but response time was an issue for several sites.

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Pingdom’s Mobile Podcast is a weekly show about Internet, web, and mobile stuff.

In this show, Saleh also gives us an update on the pending submission of his Carbon for Windows Phone Twitter client. We’re also joined by Mario Lurig, who talks about using Amazon S3 and Cloudfront to speed up a website.

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Want to be able to download a DVD worth of data in about 38 minutes? It may not seem very impressive, but that’s with the average Internet speed in South Korea, according to the latest “State of the Internet” report by Akamai.

Covering Q3 2011, the report again puts South Korea at the top of the list of countries with the fastest Internet connections. The country scored an average connection speed of 16.7 Mbps in Q3 2011.

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