- Category: SEO
- Published: Tuesday, 08 October 2013 07:43
- Hits: 16309
It's here folks! Every two years, Moz surveys the opinions of dozens of the world's brightest search marketers and runs correlation studies to better understand the workings of search engine algorithms. We gather this data to gain insight into the factors that may help—or hurt—a website's visibility in search engines. Note that these factors are not "proof" of what search engines use to rank websites, but simply show the characteristics of web pages that tend to rank higher.
Below we present the results of our 2013 Correlation Study. Select one of the 10 categories at the top of the chart to focus on those characteristics.
Domain Level Anchor Text
These features describe anchor text metrics—both partial and exact match—about the root domain hosting the page. For example, for the page www.test.com/A, these features are for anchor text links pointing to *.test.com, not just page A.
Over the past two years, we've seen Google crack down on over-optimized anchor text. Despite this, anchor text correlations for both partial and exact match remained quite large across our data set.
Domain Level Brand Metrics
These features describe elements of the root domain that indicate qualities of branding and brand metrics.
For this study we tracked domain name mentions in Fresh Web Explorer. The correlations for mentions are relatively high, falling between 0.17 and 0.20 for mentions of the full domain name.
Domain Level Keyword Agnostic
These features relate to the entire root domain, but don't directly describe link or keyword-based elements. Instead, they relate to things like the length of the domain name in characters.
Although none of these factors were highly significant, we did find a negative correlation of -0.09 with the length of the domain name.
Domain Level Keyword Usage
These features cover how keywords are used in the root or subdomain name and how much impact this might have on search engine rankings.
The ranking ability of exact- and partial-match domains (EMD/PMD) has been heavily debated by SEOs recently, and it appears Google is still adjusting their ranking ability. In our data, we found EMD correlations to be relatively high at 0.16 and as high as 0.20 if the EMD is also a dot-com.
Domain Link Authority Features
These features describe link metrics about the root domain hosting the page (e.g., for the page www.test.com/A, these features are for links pointing to *.test.com, not just page A). As in 2011, metrics that capture a diversity of link sources (C-blocks, IPs, domains) have high correlations. At the domain/subdomain level, subdomain correlations are larger than domain correlations.
Page Level Anchor Text
These features describe anchor text metrics—both partial- and exact-match—to the individual page (e.g., number of partial-match anchor text links, exact-match links).
Despite Google cracking down on over-optimized anchor text, we found high correlations with both partial and exact match anchor text to the URL, with a 0.29 correlation with the number of root domains linking to the page with partial match anchor text.
Page Level Keyword Agnostic
These elements describe non-keyword usage and non-link metrics features of individual pages such as length of the page, and load speed.
This year's data showed an interesting negative correlation (-0.10) to page response time.
Page Level Keyword Usage
These features describe use of the keyword term/phrase in particular parts of the HTML code on the page such as the title element, H1s, alt attributes, and more.
The data measures the relationship between the keyword and the document-both with the TF-IDF score and the language model score. We found that the title tag, the body of the HTML, the meta description, and the H1 tags all had relatively high correlation.
Page Level Social Metrics
These features relate to third-party metrics from social media sources such as Facebook, Twitter, and Google+ for the ranking page.
Social signals were some of our highest correlated factors, with Google+ edging out Facebook and Twitter.
Page Link Authority Features
These features describe link metrics to the individual ranking page such as number of links and MozRank.
Page Authority is a machine learning model inside our Mozscape index that predicts ranking ability from links and, at 0.39, it is the highest correlated factor in our study.
About Us Testimonials
Our SEO Results!
See what a few seo clients have to say...
Our company used INTELLIPLANS for everything, from logo design to domain name registration to website development, hosting and marketing. We didn't have much money left after our products launched, but we needed to get good ranking to continue our efforts.
Black Seed Products // CEO
INTELLIPLANS was able to rank us as #1 in Google. We are very happy with our results. Highly recommended.
Wahid Vizcaiano Law // Wahid
We are very happy with the placement we got from INTELLIPLANS. We had tried several companies in the past, but factors such as cost and time, we chose INTELLIPLANS for our SEO services and it was the best decision we made! INTELLIPLANS was a tremendous asset for our SEO and online marketing and we would definitely recommend them.
The Consumers Review // CEO
Two thumbs up! The best SEO Company in Florida I have worked with!
A to Z Fabrics // Owner
As a new customer of INTELLIPLANS SEO services, I say with confident that without their search engine optimization services and support we would have been struggling instead of growing.
Mark // Miami Cycles
I just wanted to start by telling you that we are happy with your team. At first, we were a bit skeptical about this seo thing, but became pleasantly surprised after seeing leads after the first month.
Dr. James D // Chiropractor
I want to give you this testimonial: INTELLIPLANS SEO white hat techniques have increased the number of unique visitors to our site over 500%. We were able to cut back significantly on other advertising, saving us a lot of money. Thank you for helping us grow of our small business.
C. D. R. Photos // Owner
I am probably the happiest business owner. We were scammed by a SEO company who did what we now know was black hat techniques to get us ranking high. After Google's Panda and Penguin updates, our company suffered severely in Google's search results. After consulting with INTELLIPLANS, we signed the contract to get SEO services done by them. Thank God, we are now seeing positive results, ethically and I can sleep well knowing things are being done correctly.
Hellen T. // HT Daycare
Great job INTELLIPLANS! Our search engine rankings have moved up from 30th position on page 3 of Google to 7th on page 1 and we're also on the 2nd position and 3rd position on the 5 keyword we chose with your help.! We are now able to compete with the big boys in a very competitive industry.
Rico's Pizzeria // Owner
I appreciate the unique insights you've brought to our company. You took the time to explain a very difficult marketing campaign, which you convinced of in using your SEO services. The work that you all did is exemplary and the attention to details you all put forth in getting us to the desired goal was simply remarkable. End of the day, we're now getting sales and recognition we could not have dreamt of without you. You've got a client for life!
JD Thomas // President