Hey Mozheads, Brad here! It's a beautiful Friday here in Seattle, and I hope the day finds you well wherever you are.
We've got a May Mozscape index for you to check out! As always, the new data can be seen on Open Site Explorer, the Mozbar, your PRO campaigns, and the Mozscape API.
This is a very special release, you guys. This is the first Mozscape index that was processed by our virtual private cloud in Virginia! This is a big part of our long-term strategy to streamline our processing for maximum freshness and value. For now, some of our indexes will be from our Elastic Compute Cloud clusters and some will be from our VPC in Virginia while we figure out how best to use our resources.
Our histogram shows that the index was crawled from the second half of March through the first half of April.
And now, the juicy details -- metrics for this latest index:
- 90,875,257,743 (91 billion) URLs
- 8,514,925,232 (8.5 billion) Subdomains
- 163,482,796 (163 million) Root Domains
- 917,461,264,950 (917 billion) Links
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Followed vs. Nofollowed
- 2.15% of all links found were nofollowed
- 56.4% of nofollowed links are internal
- 43.6% are external
- Rel Canonical - 14.83% of all pages use a rel=canonical tag
-
The average page has 76 links on it
- 65.49 internal links on average
- 10.95 external links on average
And here are the 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
Please feel free to leave your thoughts and comments! And check out a list of our previous index updates with metrics here.
Have a great weekend, everybody, and May the 4th be with you!
Amazing data! Just wanted to thank you at SEOmoz for the SEO-tool Mozbar. -:) Greetings from Munich, Germany (München) Seo München
Schoene Gruesse in die Heimat, vom SEOMoz-Praktikanten :-)
Best greetings back home, the intern at SEOMoz
Hi SEOmoz Praktikant -:) Christoph I apologize for responding so late to this message. I just found it. Greetings back to you from good old Germany and good luck with your internship at SEOmoz. This sure is an exiting opportunity for you! All the best!
Just signed up with you all today and I won't even try to pretend I'm an SEO expert. Although I understand a bit about internal/External linking and crawling by search engines, I am here strictly in a learning capacity.
I look forward to stopping by regularly in hopes of reaping the fruits of your accumulated knowledge so that I can increase on the value of my own name brand.
Love stats, charts, etc... and am looking forward to see more from you all.
Thanks for the privilege of being a member!
Maurice
Thanks for the bonus linkscape update in the last month! Will the updates be more frequent?
So, officially we make sure the index gets updated every 4 weeks, however our last few have been finished in just about 2 weeks. :D The plan is definitely to improve the speed between indexes.
Thank you for an early update. I was positively surprised to see my Fashion Jewelry Store authority jump from 36 to 40 in a month. Hope that continues.
Great news on a Monday morning. Thanks for the index update SEOmoz!
Awesome job Mozzers! Greatly appreciated!
Great with an update. By the way, those cupcakes look so cool!
Jedi-liciousness!
Just loving the cupcake celebration! Who made them? Great job on continuing to providing an awesome resource, and for your focus on quality.
IIRC they were made by a relative of one of the Mozzers.
What a great great cupcakes!
I agree with Rand Fishkin “That metric has been pretty consistent since we started producing indices years ago” however good information you have share and thanks for early update. Great job on continuing to provide an awesome resource, and for your focus on quality.
Thanks for sharing index updates.
Although i read this article a little late but thanks for the 4th May gift :)
and this is always great to see how Mozplex is getting better every month... keep rocking!
Correlations seem awfully low. Domain Authority at 0.19 — what exactly is that correlating with at Google?
It's not much lower than normal, but we've been focusing on refactoring it for the future. One thing that's probably the case is that Google may be taking less and less domain-based link metrics into account over time, and focusing more on individual pages (this is a gut feeling, so please don't take it as gospel).
In terms of how correlations are calculated, see https://www.seomoz.org/blog/introducing-seomoz-updated-page-authority-and-domain-authority
Rand's intuition is spot on and we have seen the domain correlations go down over time. I wrote a post last fall that traces this back to 7-vs-10 result SERPs.
https://www.seomoz.org/blog/mozscape-correlation-analysis-google-algorithm-changes
nice article , i like it
"The average page has 76 links on it"
Does that not seem high ?
Considering if you take an average site with " XXX" amount of pages and do the multiplication
Can you clarify findings on that ? If there is 76 links on a page... how much content on average is per page....
Thanks
Fewer than 11 of those average of 76 links are external links, however. Over 65 of the links, on average, are internal links, likely top navigation and footer links.
understood on the external factor...still seems very high
That metric has been pretty consistent since we started producing indices years ago, so I think it's spot on. Most of the web pages we all visit have lots of links pointing to other pages on their own sites or others (remember this is the avg. number of links ON a page, not pointing TO a page).
e.g. The November 2010 index had ~63 links/page: https://www.seomoz.org/blog/november-linkscape-index-update-live
This is what consistence exactly is. Mozscape Index has been updated quite often and Roger the mozbot deserves a big thumbs up for the hard work he puts in. Increase in Page authority, domain authority and mozrank is one great way to measure the fruitfulness of a content marketing or a link building campaign. There is no doubt that mozbot has the capabilities in it to be more powerful than BingBot in crawling and indexing more pages in the future.
mmmm sour sweet moment. New update! but we were bumped score a little bit
Anyway,Thanks for the updates!!
I just don't get it. I used the be the biggest Authority fan, but now my website score just goes down each update. My website is becoming viral, it has links from domains like Microsoft and other domains with Authority score of above 80, and they just dont get scanned by the moz index for months and months. Whats up with the Moz index's ability to scan links?
Hi Yoav - that's quite peculiar indeed! This is one of our largest indices to date, and the new features like "just discovered links" are getting us more and more of the web's link graph that matters (i.e. that we think Google is probably counting). Can you shoot an email to [email protected] with detailed on the links you're not seeing, when they appeared, and your site? We'll try to figure out what's going on.
Thanks!