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December Mozscape Index is Live!

Sunday, 23 December, 2012 - 23:56

Happy Holidays!! The December Mozscape index is now live! The latest index has just been released and you will see fresh Mozscape data in Open Site Explorer, the Mozbar, PRO campaigns, and the Mozscape API.

The Big Data team was hoping to provide a special holiday treat launching two indices in one month again, but, unfortunately processing was bitten by a full machine failure. We've had really good luck running Mozscape processing on the larger, high compute AWS machines, but, sadly, just a few days before the index was complete, an entire computing machine failed which forced us to have to re-run a few steps. Even with the failure, the December index is a few days earlier than our scheduled release date on December 27th - a pre-holiday treat for everyone!

In even bigger Big Data news - our private cloud is fully up and running in Virginia and we are about 25% done with our first production ready index! If all goes well, we'll be releasing the first Mozscape index created in our own private cloud in mid-January. What a way to bring in the new year!

Here are the metrics for this latest index:
78,671,787,078 (78 billion) URLs
687,827,137 (687 million) Subdomains
136,539,340 (136 million) Root Domains
917,094,026,686 (917 billion) Links
Followed vs. Nofollowed
2.32% of all links found were nofollowed
56.69% of nofollowed links are internal
43.31% are external
Rel Canonical - 14.07% of all pages now employ a rel=canonical tag
The average page has 72 links on it
61.38 internal links on average
10.45 external links on average

And the following correlations with Google's US search results:
Page Authority - 0.36
Domain Authority - 0.19
 MozRank -0.24
Linking Root Domains - 0.30
Total Links - 0.25
External Links - 0.29

The histogram for the freshness of the index's crawl data shows a pretty high volume of fresh crawl data coming from middle of November. This index will have data ranging as old as the end of October, but a large volume of the data was crawled from the middle to end of November.

We'll be keeping an eye on things over the holiday, so send us your feedback - we always love to hear your thoughts! And remember, if you're ever curious about when Mozscape is updating, you can check the calendar here. We also maintain a list of previous index updates with metrics here.


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