This is simple utility allows you to get very useful information about your domain PageRank at various datacentres. As you know the PageRank may have few datacentres and the PageRank value for different datacentres may be also different. Why it´s useful for you:

• you may see how many datacentres has your web site PageRank
• you may evaluate the difference of PageRank value for different datacentres
• you may forecast growth or recession of Google relative to your web site