However, when it comes to practice, Google uses complicated math algorithms and dependencies to define how many PR points are earned by the webpage and what the website PR is. It may be rather difficult to make sure that website PR was calculated correctly to offer users the best results as you need to look for the way to find a fair relation between the number of inbound links and their authority.
You can use specialized formulas that are invented by Google Inc. Where a web page B had a link to pages C and A, and page C had a link to page A, and page D had links to all three pages mentioned earlier. There is no disclosed formula that can tell you exactly what the link weight is and how it can exactly affect the PR and thus a position of the page in the ranking. However, there is a logic you should use when building a link profile which limits speculations on building links from the pages on authoritative websites.
Just imagine that there is a website with PR 10 and there is a page which weights the most when it comes to PR points. It is evident that many websites would like then to get a link from that page in order to get higher PR for themselves. What would such a situation lead to?
Practically we would face many authoritative resources that have pages with hundreds and thousands of links. So the Google algorithm considers that, and the weight of links depends on the number of links of the page. For example, if a page possesses 15 PR points and contains 3 links, the weight of each link would make 5 points, and if there were 5 links, the weight of each link would be 3 points.
This allows avoiding speculations and demotivating webmasters to post hundreds of links on the page. However, if you want your website page to contain many links for example, if that would be better for user experience but do not want to decrease the weight of each link, it would be a good idea to place nofollow links.
Nofollow links are not taken into account by the Google spider bots , thus they have 0 link weight. Internal link building is a good idea in order to increase the weight of your web pages and improve your search rankings and overall PR.
There are three main reasons for using the nofollow command. All of them are tied to the fact that you do not want your website outbound link weight to decrease:. If the link was sponsored paid link in the text or on the ad like banner or teaser , it is a must to use the nofollow command due to the Google Nofollow usage policy. Otherwise, your PR will be decreased as Google may think you are trying to make black SEO moves to promote other websites.
It is very important to only produce relevant content and likewise only refer to relevant websites as both of these play an important role when Google decides which page to place first in search results. If the topic of your website is cooking and on one of the pages you place a link to the website that contains content about hi-tech make sure you use a nofollow command to prevent Google search robots from decreasing your website page rank. At last, if the link leads to a website with suspicious traffic, scam activity or a fresh domain, this seems suspicious to Google.
So make sure the website you refer to is trustworthy enough, otherwise, you should use the nofollow command. As you can see building a website PR is a hard task and when you build a link profile it is not enough to just place as many links as you can to promote your website.
You should consider different factors like page relevance, number of links, etc. If you fail to provide a reasonable link building policy, it is likely that your website will be banned by Google or your PR rank will decrease dramatically. Each year Google improves policies and algorithms to define the most high-quality websites among all and to place them first on the first search results page.
Check other of our awesome SEO tools! Rank Checker Get a report with keywords that bring the website the most of organic traffic. The PageRank of a page A is given as follows:. Note that the PageRanks form a probability distribution over web pages, so the sum of all web pages' PageRanks will be one.
This is known as the dampening factor. If a web page has no links pointing to it, that page doesn't begin with 0 PageRank, rather 0. As referenced in this post on Search Engine Roundtable :.
Page A's PageRank does not get diluted by linking out, but the links are worth less, in terms of the value of the PageRank, when there are more links on the page A. PageRank is complex, and to understand how it works in more detail; you can check out this detailed guide that gives an introduction to PageRank for SEO. We have already covered the fact that not all links are equal in terms of the PageRank that they pass.
But just what are some of the factors that can and have previously done so influence PageRank? You need to understand not only what these influencing factors are but also how they apply to SEO in , which you need to be using and which to avoid as part of your tactics of choice.
Google's original paper referred to link anchor text by stating that, "The text of links is treated in a special way in our search engine" and that, "anchors often provide more accurate descriptions of web pages than the pages themselves.
If you wanted to rank for the term "red shoes," the more links you had that used that term as an anchor text, the higher you could rank. Link building became a race between SEOs to see who could gain as many exact match anchor text links as possible from high PageRank pages. It worked for some time but was sheer manipulation of Google's Webmaster Guidelines and, specifically, this is considered as a link scheme. Fast forward to , and the overuse of anchor text manipulation will result in toxic links and potentially a manual penalty or algorithmic adjustment.
The likelihood of a link being clicked is a key influencer of PageRank and is referenced by Google's reasonable surfer patent. The original PageRank algorithm assigned an equal weight to links on a page. Whereas, 's Reasonable Surfer patent indicates that not all links are as likely as one another to be clicked; therefore, giving a different value to different links, depending upon their potential to be clicked.
A given example of links that are less likely to be clicked include 'terms of service' links and banner advertisements, but could also include links in a footer or a similar location.
You can help PageRank to flow through your site with a solid internal linking structure, and once you understood how this works, it is easy to see why this tactic can have such a noticeable impact, especially when linking to pages that are not linked to from anywhere else. You can learn more about how to effectively use this tactic in our guide to internal linking. NoFollow links prevent ed the flow of PageRank until recently when this became a hint.
Historically, SEOs sometimes used the NoFollow attribute to sculpt the flow of PageRank — on the basis that if a page had 5 external links, PageRank would all pass through the one followed link if 4 of the 5 were nofollowed. In , however, Google's Matt Cutts confirmed that this would no longer work and that PageRank would be distributed across links even if a NoFollow attribute was present but only pass through the followed link. SEOs became obsessed with PageRank, and it quickly became the most focused on SEO tactic, even above creating great content and a solid user experience.
The problem was that by publicly sharing a PageRank Score, this became easier for SEOs to manipulate, alongside influencing factors such as anchor text, nofollow, and the reasonable surfer model. SEOs knew how they could use PageRank to rank their websites higher, and they took advantage of this. If we look at this from Google's perspective, the public-facing PageRank toolbar was the problem.
Without this, there was no accurate measure of a web page's authority at least officially. Ultimately, SEOs abused PageRank and used it to manipulate rankings, leaving Google with no real choice other than to retire the toolbar, which happened in Just because there is no longer a toolbar that gives us a web page's PageRank score doesn't mean it is not still used.
DYK that after 18 years we're still using PageRank and s of other signals in ranking? Wanna know how it works? PageRank has never gone away, and understanding how it works can only help you to be a better SEO. If you have still not read Google's original paper , you should do so. Google has never officially released a new version of the PageRank toolbar, but, of course, PageRank is still very much used by Google.
Authority Score is a compound domain score that grades the overall quality of a website and tells you how impactful a backlink from a site can be for your SEO, and is based upon:. Of course, this metric uses backlink data as part of the scoring algorithm but is not intended to directly replace PageRank.
Third-party metrics are not used in Google's algorithm. They never have been and never will be, yet are intended to help you to measure a site's relative authority against competitors and other sites on the web.
We might not have a toolbar anymore, but that doesn't mean we don't need to understand how it works and the factors that influence it. In many ways, it is a good thing that SEOs stopped obsessing over this single metric, given that it contributed towards a shift that means, largely, the industry isn't relying on manipulative tactics.
SEOs abused PageRank, and we lost the toolbar because of this, but that is not necessarily bad in the eyes of many. Fast forward to , and PageRank is rarely mentioned. What is PageRank? But there is far more to PageRank than the toolbar. The higher the PageRank of a link, the more authoritative it is.
The PageRank Score Perhaps unsurprisingly, PageRank is a complex algorithm that assigns a score of importance to a page on the web. A Brief History of Google PageRank The first PageRank patent was filed on September 1, , and became the original algorithm that Google used to calculate the importance of a web page and rank these. And if we take a look at the paper that introduced Google , we can clearly see PageRank referenced when explaining the search engine's features: The Google search engine has two important features that help it produce high precision results.
But that doesn't mean PageRank is dead, far from it. But just how does PageRank work? But things get even more complicated when there is more than one external link on a page. We will look specifically at: Anchor text The likelihood of being clicked Internal links Nofollow links You need to understand not only what these influencing factors are but also how they apply to SEO in , which you need to be using and which to avoid as part of your tactics of choice.
Anchor Text Google's original paper referred to link anchor text by stating that, "The text of links is treated in a special way in our search engine" and that, "anchors often provide more accurate descriptions of web pages than the pages themselves. The Likelihood of a Link Being Clicked The likelihood of a link being clicked is a key influencer of PageRank and is referenced by Google's reasonable surfer patent.
Article metrics Backlinks. Data from Backlink Analytics.
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