SEO Ranking Factors - Rank Correlation for Google USA in 2013 - Study by Searchmetrics

Staff at Searchmetrics have released results of their 3-month long study, SEO Ranking Factors – Rank Correlation 2013 for Google USA. They evaluated the first 30 search results of 10,000 keywords, hence they analyzed 300,000 websites. They also carried out Navigational Searches, filtering largely brand search in order to deliver better result. They searched through titles, descriptions, links, content, Facebook likes and shares, tweets, PlusOnes and more.

Marcus Tober, founder of Searchmetrics said that Ranking Factor – Rank Correlation - US 2013 study, like last year, dealt with the definition and evaluation of factors that differentiate better-positioned websites from pages placed further back in the organic search results – i.e., pages that have a positive rank correlation. Compared to their Google Ranking Factors US 2012 study, they taken significantly more ranking factors into account in their analysis.

Question studied by Searchmetrics:
What do web pages that are well-positioned by Google have in common and what distinguishes them from lower ranking pages?

What factors are playing a role?

You can find the most important factors in our overview of all rank correlation coefficients. These are all the factors we have analyzed and consider relevant. We have presented the relationship between Google search results and the various factors influencing it using the Spearman correlation - a high positive correlation coefficient occurs for a factor if higher ranking pages have that feature / or more of that feature, while lower ranking pages do not / or have less of that feature. In addition to providing an overview of the changes in correlation since last year, we have extended our analysis in 2013 to include many relevant new factors.

Top highlights of 2013:

1. Keyword domains and keyword links have lost relevance
2. Brands are the exception to many rules
3. Social signals continue to correlate very well with better rankings
4. Good content is always important: it comes to quality!
5. The number of backlinks remains immensely important
6. On-page technology remains one of the basics

Following are the Deeper Insights into the Study:

1. Keyword links and domains have lost relevance

The importance of keywords in the URL / domain has significantly decreased as a ranking factor compared to 2012:

In our study, these two factors are considered the losers when compared with last year, because the existence of keywords in the URL and/or the domain have lost their relevance. This also affects backlinks when it comes to plain text keyword links. So it looks as if the days of "hard keyword optimization" are over. Google now puts much more emphasis on natural link profiles. Hard keyword links have lost significant influence and can probably – when used excessively – even have a negative effect; for example, when Google updates its algorithm with features devaluing bad links. Wondering what else has been happening in the field of keywords? Check out the complete version of the Ranking Factors – Rank Correlation study.

2. Brands are the exception to many rules

Last year, brands held a privileged position. This has also been confirmed in this year's study: for brands – and their websites – search engines do not seem to apply the same criteria as for other domains. For example, it seems as though Google considers it natural for brands to have comparatively more backlinks with the name of the brand in the link text alone – what we refer to as "brand links" – and still not be rated negatively.

3. Social signals continue to correlate very well with better rankings

The tendency over the years has been very positive – and this year’s study confirms the trend that became evident as early as 2012: well positioned URLs have a high number of likes, shares, tweets and plus ones and specific URLs stand out in the top search results with a very high mass of social signals. On one hand this means that the activity on social networks continues to increase, on the other hand it means that frequently shared content increasingly correlates with good rankings.

4. Good content is always important: it comes to quality!

For our analysis of content features, we have increased the number of factors significantly over the previous year:

Content factors correlate almost entirely positively with good rankings and were apparently – when compared with the previous year – partially upgraded. Good ranking URLs, to a certain extent have more text and a higher number of additional media integrations compared with 2012. A good internal link structure also appears to be an important quality attribute.

5. The number of backlinks remains immensely important

Backlinks continue to be one of the most important SEO metrics. In this regard, little has changed over the years: sites with more backlinks simply rank better. And this is also the result of our ranking factor study in 2013. However, factors around this metric are subject to evolution: not only are the quantity of backlinks important, but increasingly so is their quality! The backlink profile is nowadays regarded as a kind of conglomerate of very diverse quality factors that we discuss in detail in the study.

6. On-page technology remains one of the basics

The on-page factors surrounding the technical side of building web sites have long been one of the basics of a good search engine ranking – and this will continue. Even more, it seems to be fulfilling certain on-page criteria is not about achieving a favorable ranking, rather, it is the opposite: it is simply negative for the rankings when web pages do not meet criteria. On-page factors are therefore considered more of a prerequisite for ranking higher in search results pages.

The context of the Ranking Factors - Rank Correlation Study:

Search engines work with algorithms to evaluate websites by topic and relevance. On this basis the search engines create a structure for the total of all pages in the search engine index, which finally results in a best possible ranking for users’ search queries. The criteria for the evaluation of websites and the production of this ranking are generally referred to as ranking factors. Please note the difference between correlation and causation in this case. We do not make any statements about causal effects between factors and rankings, but we analyze correlations: and the coexistence of a factor and rankings indicates some kind of relationship.

For our study, we have undertaken a comprehensive data collection which enables the analysis of the Ranking Factors for Google USA in 2013 and also allows us to draw comparisons to our analysis of the Ranking Factors in 2012. This content is an overview of our detailed Ranking Factors – Rank Correlation 2013 study. The results are based on correlation and are not proof of any causal effects.

Keep in touch with latest SEO News by following Marcus Tober at Goohle+ & Twitter and by visiting Searchmetrics SEO Blog.

Google Penguin 2.0 Update rolled out to fight more Web Spam

Google Penguin 2.0 Update, which was the talk of the SEO World of late, finally rolled out on 22 May 2013 afternoon. It affected 2.3% of U.S. English queries. It was also rolled out for other languages world-wide. Scope of Penguin update varies by language, such that the languages with more web spam will be more targeted.

Google's head of Web Spam, Matt Cutts had first announced in March, that soon there would be the next algorithm update of Penguin. On 10 May 2013, he hinted about the impending next generation of Penguin to Search professionals and Webmasters on Twitter by saying: "we do expect to roll out Penguin 2.0 (next generation of Penguin) sometime in the next few weeks though."

Cutts went into more detail in a Google Webmaster Help video on what Penguin 2.0 would unleash regarding Web Search. He also elaborated what new changes webmasters and SEOs can expect over the coming months with regards to Google search results.

He officially revealed about Penguin 2.0 roll-out late Wednesday afternoon on the #199: A Pixel Sandwich episode of This Week in Google show of TWiT.TV. He said on the talk show: "It's gonna have a pretty big impact on web spam. It's a brand new generation of algorithms. The previous iteration of Penguin would essentially only look at the home page of a site. The newer generation of Penguin goes much deeper and has a really big impact in certain small areas."

He highlighted more details on Penguin 2.0 in a new post on his own blog, titled Penguin 2.0 rolled out today, saying that the roll out aiming at fighting more web spam is now complete and affects 2.3 percent of English-U.S. queries, and that it affects non-English queries as well. He wrote:

We started rolling out the next generation of the Penguin webspam algorithm this afternoon (May 22, 2013), and the rollout is now complete. About 2.3% of English-US queries are affected to the degree that a regular user might notice. The change has also finished rolling out for other languages world-wide. The scope of Penguin varies by language, e.g. languages with more webspam will see more impact.

This is the fourth Penguin-related launch Google has done, but because this is an updated algorithm (not just a data refresh), we’ve been referring to this change as Penguin 2.0 internally. For more information on what SEOs should expect in the coming months, see the video that we recently released.

Source(s):
Penguin 2.0 rolled out today
Google Penguin 2.0 Update is Live
Penguin 4, With Penguin 2.0 Generation Spam-Fighting, Is Now Live
Google Pushed Out The Major Penguin Update (v2.0 #4)

Proper Keyword Distribution in Anchor Text for good Search Rankings

After the release of Penguin update by Google, sometime back SEOTacklebox did a webinar about keywords, linking and search ranking. Later they revisited that data after allowing plenty of time to gather more information and came to some conclusions about the best distribution of anchor text for ranking in Google.

It is well known by now that Google does not want people gaming their search algorithm. But still their search results are a product of computer generated algorithm. No person is sitting there to decide, which websites rank and which sites don't, for all search phrases. Due to this basic fact, there will always be ways to improve your search rankings by associating your site with what Google is looking for.

Link building for better search rankings is still necessary. Links are still the primary way, due to which Google decides what sites to rank where. The difference after Penguin update is that now the links need to be distributed in a natural manner rather than a keyword based manner. SEOMOZ published an article sometime ago, about the research on 10 national brand websites, that rank very well in the search engines. They broke down the percentages of links by anchor text. They came up with is a good formula for link building strategy.

Results found shown that about 65% of the links were exact match, phrase matching or brand matching with regards to the anchor text. The breakdown between these three categories was 18% exact match, 17% phrase match and 30% brand match. Remaining 35% back-links were evenly divided between the URL as the anchor text and other unrelated anchor text.

It presents a great scheme to design your own link building strategy. Using the ratios above, here is what a sample link building strategy might look like for a site, called "Widget World" selling "Red Widgets". For every 100 links built, the following should be done:

• 18 links with anchor text of "Red Widgets" – this is the Exact match
• 17 links with anchor text containing Red Widgets, such as "Handy Red Widgets", "Waterproof Red Widgets" etc – this is the Phrase match
• 30 links with anchor text of "Widget World" or slight variation – this is the Brand
• 18 links with the anchor text of "yoursitename.com" – this is the URL
• 17 links with random anchor text – this could be long tail phrases like "see more about Red Widgets at our site" or simple phrases like "click here"

This is a simplistic breakdown, but the data backs up these general ratios as being the target. Regardless of whether the back links are built all naturally or built by you or outsourced, if you keep to this ratio you will not be degraded by Google, and you will see your search rankings increase.

When building these links, you can consider building higher page rank or PR links for the first line item – the exact match phrase. This will hopefully transfer a little more link juice through that phrase. When you combine that with the varied anchor text, adhering to these ratios, you have a winning formula for better search rankings.

Source(s):
http://seotacklebox.com/blog/proper-anchor-text-distribution-for-better-rankings/
http://www.seomoz.org/blog/anchor-text-distribution-avoiding-over-optimization

Google Panda Update 20 Released with Impact on 2.4% of English Queries

Google confirmed on Thursday, 27 September 2012, that they have released a Panda algorithm update. This is the 20th Panda update and thus it is named Panda 20. It is a fairly major Panda update that impacts 2.4% of English search queries and is still rolling out. Late Friday afternoon, Google announced a EMD (Exact Match Domain) update that removed the chances of a low-quality exact match domain from ranking well in Google. But over the weekend, many non-exact match domain site owners noticed their rankings dropped as well. What was it?

Google confirmed that they pushed out a new Panda algorithm update that is not just a data refresh but an algorithm update. Google told us this "affects about 2.4% of English queries to a degree that a regular user might notice." There is more to come with this update, where Google promises to roll out more to this Panda algorithm update over the next 3-4 days. Here is the comment Google's Matt Cutts sent us after asking about this update

Google began rolling out a new update of Panda on Thursday, 27 Sep 12. This is actually a Panda algorithm update, not just a data update. A lot of the most-visible differences went live Thursday, 27 September 2012, but the full roll-out is baking into our index and that process will continue for another 3-4 days or so. This update affects about 2.4% of English queries to a degree that a regular user might notice, with a smaller impact in other languages (0.5% in French and Spanish, for example). The sad part is that there are many sites affected by either this Panda update or the EMD update and it is hard to know which update you were hurt by.

Google changed Link Evaluation criteria

What exactly did Google announce?
Google announced several changes of the ranking algorithm. The most important change was the change of the backlink analysis:

"Link evaluation. We often use characteristics of links to help us figure out the topic of a linked page. We have changed the way in which we evaluate links; in particular, we are turning off a method of link analysis that we used for several years. We often re-architect or turn off parts of our scoring in order to keep our system maintainable, clean and understandable."

What does this mean for your web page rankings?
Unfortunately, Google doesn't go into detail. As mentioned in Google's statement, Google uses "characteristics of links" to figure out the topic of a linked page.

Characteristics of Links
We'll take a look at the characteristics below. Then we'll try to find out which element could have been changed.

Characteristic 1: the text of the link
The anchor text of a link has been the most important factor for a long time. If many sites link to a page with the anchor text "green apple" then the page will get high rankings for the term "green apple".

Characteristic 2: the link power of the linking page
Links from pages with many inbound links have a higher influence than links from pages with few backlinks.

Characteristic 3: content and page proximity
If you sell shoes on your website then the link to your website will have a bigger impact if the text that surrounds the link to your page is about shoes. If the link to your website is surrounded by totally unrelated text then the link won't count as much.

Characteristic 4: link attributes such as nofollow and title
Links that use the rel=nofollow attribute don't affect the position of your web pages on Google. Some webmasters think that using title attributes can have a positive effect if these contain the targeted keywords. Others think that this could trigger a spam filters.

Characteristic 5: redirects and shortened URLs
Redirects and shortened URLs such as http://bit.ly/a4X4th are URLs that redirect to another URL. Should these URLs carry full weight when it comes to calculate the position of a website?

Characteristic 6: the age of a website
The older a link is, the more Google tends to trust that link. Links that remain for a long time seem to have a bigger impact than links that come and go.

Characteristic 7: the affiliation of the linking sites
Links from websites that have the same owner and links from affiliates may have a different influence on the rankings of a web page than links from websites that are not affiliated with the page.

Of course, we can only speculate what Google has changed. It is likely that Google now only considers the anchor text of a link if that link is placed in the right context (page and content proximity). Another possibility is that affiliate links (redirected or with page variables) will have less influence on the rankings of a page. If you have followed the tips and tricks of this newsletter in the past then Google's change won't have any negative influence on your website rankings. Just continue to get good backlinks and optimize the content of your pages. You can analyze the different links that point to a website here.

References:
Search quality highlights: 40 changes for February
Google Changes How It Evaluates Links
How Google evaluates links: 7 characteristics

Google extended Panda Search Algorithm update to English queries

Google has extended its Panda Update in search algorithm to English queries. Google had announced search algorithm change (known as "Farmer" or "Panda") in February 2011 for the US. Google Panda update has now been implemented on all English language queries. This includes both English speaking countries (such as searches on google.co.uk or google.com.au) and English queries in non-English countries (for instance, for a searcher using google.fr or google.de who's chosen English-language results).

The launch impacted nearly 12% of queries in the United States. The impact may be similar for English-speaking searchers across the world. Google claimed that they've gotten a lot of positive responses about the change: searchers are finding better results, and many great publishers are getting more traffic. Google said that based on testing, they've found the algorithm is very accurate at detecting site quality. Google has launched two ways for searchers to block particular sites from their search results recently. The first of these was a Chrome extension.

Google has now launched a block link directly in the search results that appears once a searcher has clicked from the results to a site and then return to the search results. Google said after the initial Panda launch, that they didn't use data about what sites searchers were blocking as a signal in the algorithm, but they did use the data as validation that the algorithm change was on target. Google found an 84% overlap in sites that were negatively impacted by Panda and sites that users had blocked with the Chrome extension.

Google are now using data about what searchers have blocked in "high confidence situations" as a secondary factor. With the initial launch of Panda Update, large sites were primarily affected, as the larger sites; with more pages, traffic, and links, have more signals available. By the latest update, smaller sites will see an impact. Amit Singhal, in charge of search quality at Google said: "this change also goes deeper into the "long tail" of low-quality websites to return higher-quality results where the algorithm might not have been able to make an assessment before".

References:
High-quality sites algorithm goes global, incorporates user feedback - Google Webmaster Central Blog
Panda 2.0: Google Rolls Out Panda Update Internationally & Incorporates Searcher Blocking Data - Search Engine Land

Google Panda Search Algorithm - Incorporated for Finding High-quality Sites in Search

Google has just modified its search algorithm and announced war on Content Farms. Amit Singhal (Google Fellow) and Matt Cutts (Principal Engineer) wrote in a blog post; the search upgrade, which will impact 11.8% of all Google search, "is developed to decrease positions for low-quality sites — sites which are low-value add for customers, duplicate content from other sites or sites that are just not very useful. Simultaneously, it will provide better positions for high-quality sites — sites with unique content and information such as research, in-depth reviews, careful research and so on."

Google can't launch a significant enhancement without impacting positions for many sites. Google is determined by the high-quality content developed by amazing sites around the world. Google has a liability to motivate a healthy web environment. Therefore, it is important for high-quality sites to be paid, and that's exactly what this algorithm modification is all about. This means that some sites will move up and some will drop after this modification.

Google Panda update does not depend on the reviews that Google obtained from the Personal Blocklist Firefox expansion, which was released earlier last week. But it definitely features the Blocklist information for the evaluation with the sites determined by the algorithm modification. Google has released this modification in the U.S. only right now; and plans to throw it out elsewhere eventually.

For more information about algorithm change refer to the post on Google Blog by Amit Singhal, Google Fellow, and Matt Cutts, Principal Engineer:
Finding more high-quality sites in search - Official Google Blog