The Future of Search: 2013 Search Engine Ranking Factors Released
Every two years, Moz surveys over 100 top industry professionals to compile our biennial Search Engine Ranking Factors. For 2013, we’ve supplemented the survey with real-world correlation data from a scientific examination of over 17,000 keyword search results by Dr. Matt Peters and his data science team.
We’ve released some of the 2013 data previously, but not the full set until now. So with great pleasure, I present the complete results of this year’s survey and correlation data:
2013 Search Engine Ranking Factors
Why do we call it ranking factors?
Google claims to use over 200 signals in its search algorithm. While we don’t know what exactly these signals are, it’s helpful to examine high-ranking pages so that we can begin to understand the characteristic of pages search engines like to reward. This can give us a “hint” as to the ranking factors the search engines actually use.
“Correlation is not causation but it sure is a hint.”
– Edward Tufte
For example, if the correlation data shows us that high-ranking pages are associated with a high number of external backlinks, we might guess that backlinks are still an important part of Google’s algorithm.
On the other hand, the correlation data doesn’t always point us toward a direct ranking factor (causation), but instead only points us towards the characteristics of high-ranking pages. For example, this year’s data shows an amazing correlation between the number of Google+1’s and higher rankings, yet Google representatives state +1’s aren’t used in the algorithm .
This doesn’t mean sharing on Google+ isn’t important, but does tell us we should pay closer attention to try to understand why pages with a lot of +1’s are also pages that tend to rank higher in search results.
Comparing correlation metrics
This year’s Ranking Factors contains an interactive chart that allows you to compare different categories of correlations against each other, such as in this snippet comparing page-level link metrics (yellow) to domain-level link metrics (blue).
By comparing the data, we find that high-ranking URLs are more highly correlated with page-level link metrics than general domain-level link metrics.
What’s really incredible about this view is that Page Authority is the most highly correlated metric in this year’s study at 0.39, making it one of the most highly correlated SEO metrics we’ve ever observed.
On-page keyword usage vs. page-level anchor text
While the correlation with on-page keyword usage has declined over the years, the correlations with page-level anchor text remain as strong as ever. For instance, the number of root domains linking to the page with partial match anchor text has a 0.29 correlation.
Social correlations vs. link metric correlations
Here we see social metric correlations almost equal with link metric correlations. This almost perfectly illustrates the need to not jump to conclusions with correlation data, for while we suspect Google may use social data in its search algorithm, it’s also true that pages that get a large number of social shares also tend to earn a high number of links.
Just because a metric is highly correlated, doesn’t mean Google uses that metric directly.
The future of search: 128 industry experts lead the way
Raw data only gets you so far. Often, the observations and experience from those on the ground goes much farther when working toward search marketing success.
This year, we invited over 100 industry experts to weigh in on how they see search engines working, what tactics are successful, and what the future might hold.
Real world, in-depth insight
We also asked each expert to weigh in on each survey question. Here are a few responses from the Future of Search question.
“Social signals from Google+ will become more and more relevant over the next 12 months. Eventually Google+ will take equal, if not more, prominence than Facebook due to its position at the cross-section of search and social.”
“Some of the research papers from universities and/or search engines have shown them testing things like how long the window is in focus, scrolling on a page, printing from a page, and-what I think is the most interesting one (used for testing a page’s credibility)-automating the process of identifying topical experts and giving weight to the pages they visit.”
“Don’t believe the hype of social and G+. They will increase in importance, but certainly not replace more traditional offsite factors. Inbound links and offsite equity will continue to be highly influential to search relevance when validated by other factors. Expect these offsite equity trust and authority factors to maintain a large portion of the importance that they’ve always held as the foundation of the Google algorithm.”
Read more expert comments and see the full data results in the 2013 Search Engine Ranking Factors .
The Future of Search: 2013 Search Engine Ranking Factors Released – MozThe Future of Search: 2013 Search Engine Ranking Factors Released October 2nd, 2013 – Posted by Cyrus Shepard to Moz News Every two years, Moz surveys over 100 top industry professionals to compile o…
2011 Search Engine Ranking Factors | SEOmozIntroduction Welcome to the 2011 edition of the Search Engine Ranking Factors. For the past 6 years, SEOmoz has compiled the aggregated opinions of dozens of the world’s best and brightest search mark…
Search engine optimization (SEO) will change dramatically within the next few years as a result of the Internet transitioning from 23 top-level domain names (TLD) to more than 1,409 strings. The Internet Corporation for Assigned Names and Numbers, a nonprofit corporation that oversees the use of Internet domain names, will send internationalized domain names (IDNs) live this summer.
The generic names bought by companies like Google, Microsoft, Yahoo and others will begin rolling out by the end of 2013.
Jennifer Wolfe, president of Wolfe Domain, speaking at the MediaPost Search Insider Summit, understands that this may seem like a potential threat to search experts, but she said marketers need to look at the millions of dollars that companies have invested and assume they’re not doing it without a plan.
Grant Simmons, director of SEO and social product at The Search Agency, says he gets the branding opportunity for companies like L’Oreal and Johnson & Johnson — but unless it’s adopted by search engines, he doesn’t see the change in SEO.
Half of the top 100 global brands applied are paying in aggregate more than $350 million in fees to acquire the names. Google applied for 101 TLD names. Some of those systems are “open,” which means they can resell them to businesses and consumers. Microsoft applied for 11 as closed systems. Amazon applied for 76 TLDs, each one a closed system to support their company and affiliates. “We expect Amazon to create an affiliate system,” said Wolfe.
TLDs will become ZIP codes or category regulators. Search engines will begin to weigh the TLD name as a category, and .com will become diluted in search results — less valuable, according to Wolfe. “We will see some of those big social media companies like Facebook that didn’t apply jump in during the next round,” she said.
For media companies like HGTV, HBO, or Dish Network, which applied for 13 domain names, Wolfe believes they will become the channel. Safeway will also take advantage of a channel strategy. The grocery store chain applied for the TLD Just4U, the name of their new mobile app.
“I can see a huge impact for search terms in the domains for something like Century21.com vs. Century21.realestate,” said Bill Connard, vice president of local search at RIO SEO. “I see it as a channel for DYI networks.”
Companies that bought TLDs will brand the name as the only true authentic brand to earn trust and tighter relations with consumers. It’s not a phishing site that sends you somewhere else. Frost Prioleau, Simpli.fi CEO, told Online Media Daily that the chart Wolfe presented, which outlined the companies buying TLDs and the list of segments, looks similar to a LUMAscape.
The TLD name will likely weigh more heavily in Google and Bing search algorithms, and search engine marketers focusing on optimization will need to pay more attention. “From my conversations with Google, Microsoft and Amazon, people are thinking there’s a three- to-five-year window before seeing wide adoption,” Wolfe said, emphasizing that agencies, brands and search experts need to start thinking about it now.