We regard a small web consisting of three pages A, B and C, whereby page A links to the pages B and C, page B links to page C and page C links to page A. According to Page and Brin, the damping factor d is usually set to 0.85, but to keep the calculation simple we set it to 0.5. The exact value of the damping factor d admittedly has effects on PageRank, but it does not influence the fundamental principles of PageRank. So, we get the following equations for the PageRank calculation:

A more intelligent surfer that probabilistically hops from page to page depending on the content of the pages and query terms the surfer that it is looking for. This model is based on a query-dependent PageRank score of a page which as the name suggests is also a function of query. When given a multiple-term query, Q={q1,q2,...}, the surfer selects a q according to some probability distribution, P(q) and uses that term to guide its behavior for a large number of steps. It then selects another term according to the distribution to determine its behavior, and so on. The resulting distribution over visited web pages is QD-PageRank.[41]
Ian Rogers first used the Internet in 1986 sending email on a University VAX machine! He first installed a webserver in 1990, taught himself HTML and perl CGI scripting. Since then he has been a Senior Research Fellow in User Interface Design and a consultant in Network Security and Database Backed Websites. He has had an informal interest in topology and the mathematics and behaviour of networks for years and has also been known to do a little Jive dancing.
Backlinks take place across the Internet when one website mentions another website and links to it. Also, referred to as “incoming links,” backlinks make their connection through external websites. These links from outside domains point to pages on your own domain. Whenever backlinks occur, it is like receiving a vote for a webpage. The more votes you get from the authoritative sites creates a positive effect on a site’s ranking and search visibility.
Having a ‘keyword rich’ domain name may lead to closer scrutiny from Google. According to Moz, Google has “de-prioritized sites with keyword-rich domains that aren’t otherwise high-quality. Having a keyword in your domain can still be beneficial, but it can also lead to closer scrutiny and a possible negative ranking effect from search engines—so tread carefully.”
There are plenty of guides to marketing. From textbooks to online video tutorials, you can really take your pick. But, we felt that there was something missing — a guide that really starts at the beginning to equip already-intelligent professionals with a healthy balance of strategic and tactical advice. The Beginner’s Guide to Online Marketing closes that gap.
As Rogers pointed out in his classic paper on PageRank, the biggest takeaway for us about the eigenvector piece is that it’s a type of math that let’s you work with multiple moving parts. “We can go ahead and calculate a page’s PageRank without knowing the final value of the PR of the other pages. That seems strange but, basically, each time we run the calculation we’re getting a closer estimate of the final value. So all we need to do is remember the each value we calculate and repeat the calculations lots of times until the numbers stop changing much.”
In an effort to manually control the flow of PageRank among pages within a website, many webmasters practice what is known as PageRank Sculpting[65]—which is the act of strategically placing the nofollow attribute on certain internal links of a website in order to funnel PageRank towards those pages the webmaster deemed most important. This tactic has been used since the inception of the nofollow attribute, but may no longer be effective since Google announced that blocking PageRank transfer with nofollow does not redirect that PageRank to other links.[66]

You may not want certain pages of your site crawled because they might not be useful to users if found in a search engine's search results. If you do want to prevent search engines from crawling your pages, Google Search Console has a friendly robots.txt generator to help you create this file. Note that if your site uses subdomains and you wish to have certain pages not crawled on a particular subdomain, you'll have to create a separate robots.txt file for that subdomain. For more information on robots.txt, we suggest this Webmaster Help Center guide on using robots.txt files13.


Search engines use complex mathematical algorithms to guess which websites a user seeks. In this diagram, if each bubble represents a website, programs sometimes called spiders examine which sites link to which other sites, with arrows representing these links. Websites getting more inbound links, or stronger links, are presumed to be more important and what the user is searching for. In this example, since website B is the recipient of numerous inbound links, it ranks more highly in a web search. And the links "carry through", such that website C, even though it only has one inbound link, has an inbound link from a highly popular site (B) while site E does not. Note: Percentages are rounded.
Mega-sites, like http://news.bbc.co.uk have tens or hundreds of editors writing new content – i.e. new pages - all day long! Each one of those pages has rich, worthwile content of its own and a link back to its parent or the home page! That’s why the Home page Toolbar PR of these sites is 9/10 and the rest of us just get pushed lower and lower by comparison…
Our team is made up of industry-recognized thought leaders, social media masters, corporate communications experts, vertical marketing specialists, and internet marketing strategists. Members of the TheeTeam host SEO MeetUp groups and actively participate in Triangle area marketing organizations. TheeDigital is an active sponsor of the AMA Triangle Chapter.
PageRank gets its name from Google cofounder Larry Page. You can read the original ranking system to calculate PageRank here, if you want. Check out the original paper about how Google worked here, while you’re at it. But for dissecting how Google works today, these documents from 1998 and 2000 won’t help you much. Still, they’ve been pored over, analyzed and unfortunately sometimes spouted as the gospel of how Google operates now.
Google might see 10 links on a page that has $10 of PageRank to spend. It might notice that 5 of those links are navigational elements that occur a lot throughout the site and decide they should only get 50 cents each. It might decide 5 of those links are in editorial copy and so are worthy of getting more. Maybe 3 of them get $2 each and 2 others get $1.50 each, because of where they appear in the copy, if they’re bolded or any of a number of other factors you don’t disclose.
Backlink is a link one website gets from another website. Backlinks make a huge impact on a website’s prominence in search engine results. This is why they are considered very useful for improving a website’s SEO ranking. Search engines calculate rankings using multiple factors to display search results. No one knows for sure how much weight search engines give to backlinks when listing results, however what we do know for certain is that they are very important.
“Google itself solely decides how much PageRank will flow to each and every link on a particular page. The number of links doesn’t matter. Google might decide some links don’t deserve credit and give them no PageRank. The use of nofollow doesn’t “conserve” PageRank for other links; it simply prevents those links from getting any PageRank that Google otherwise might have given them.”
It is increasingly advantageous for companies to use social media platforms to connect with their customers and create these dialogues and discussions. The potential reach of social media is indicated by the fact that in 2015, each month the Facebook app had more than 126 million average unique users and YouTube had over 97 million average unique users.[27]
Some search engines have also reached out to the SEO industry, and are frequent sponsors and guests at SEO conferences, webchats, and seminars. Major search engines provide information and guidelines to help with website optimization.[18][19] Google has a Sitemaps program to help webmasters learn if Google is having any problems indexing their website and also provides data on Google traffic to the website.[20] Bing Webmaster Tools provides a way for webmasters to submit a sitemap and web feeds, allows users to determine the "crawl rate", and track the web pages index status.
My favorite tool to spy on my competitors' backlinks is called Monitor Backlinks. It allows you to add your four most important competitors. From then on, you get a weekly report containing all the new links they have earned. Inside the tool, you get more insights about these links and can sort them by their value and other SEO metrics. A useful feature is that all the links my own website already has are highlighted in green, as in the screenshot below.
Secondly, nofollow is also essential on links to off-topic pages, whether they’re internal or external to your site. You want to prevent search engines from misunderstanding what your pages are about. Linking relevant pages together reinforces your topic relevance. So to keep your topic silos clear, strategic use of the nofollow attribute can be applied when linking off-topic pages together.
However, some of the world's top-earning blogs gross millions of dollars per month on autopilot. It's a great source of passive income and if you know what you're doing, you could earn a substantial living from it. You don't need millions of visitors per month to rake in the cash, but you do need to connect with your audience and have clarity in your voice.
Hi Brian! You mentioned that we should have our anchor text include our target keyword. When I do that, Yoast SEO plugin throws a red flag that says “You’re linking to another page with the focus keyword you want this page to rank for. Consider changing that if you truly want this page to rank” So should I leave the anchor text with that keyword or change it?
As Google becomes more and more sophisticated, one of the major cores of their algorithm, the one dealing with links (called Penguin) aims to value natural, quality links and devalue those unnatural or spammy ones. As a search engine, if they are to stay viable, they have to make sure their results are as honest and high-quality as possible, and that webmasters can't manipulate those results to their own benefit.
If you are serious about improving search traffic and are unfamiliar with SEO, we recommend reading this guide front-to-back. We've tried to make it as concise as possible and easy to understand. There's a printable PDF version for those who'd prefer, and dozens of linked-to resources on other sites and pages that are also worthy of your attention.
Check your robots.txt file. Make sure you learn how to hide content you don’t want indexed from search engines and that search engines can find the content you do want indexed, too. (You will want to hide things such as repeat content, which can be penalized by search engines but is still necessary on your site). You’ll find a link to how to modify the robots.txt at the end of this article.

After finding websites that have good metrics, you have to make sure the website is related to your site. For each competitor backlink, try to understand how your competitor got that link. If it was a guest article, send a request to become a contributor as well. If it was a product review by a blogger, contact the writer and offer them a good deal in exchange for a similar review.
Well, it seems that what this article says, is that the purpose of the no-follow link is to take the motivation away from spammers to post spam comments for the purpose of the link and the associated page rank flow; that the purpose of no-follow was never to provide a means to control where a page’s pagerank flow is directed. It doesn’t seem that shocking to me folks. 

SEO is an acronym for "search engine optimization" or "search engine optimizer." Deciding to hire an SEO is a big decision that can potentially improve your site and save time, but you can also risk damage to your site and reputation. Make sure to research the potential advantages as well as the damage that an irresponsible SEO can do to your site. Many SEOs and other agencies and consultants provide useful services for website owners, including:
However, if you're like the hundreds of millions of other individuals that are looking to become the next David Sharpe, there are some steps that you need to take. In my call with this renowned online marketer, I dove deep the a conversation that was submerged in the field of internet marketing, and worked to really understand what it takes to be top earner. We're not just talking about making a few hundred or thousand dollars to squeak by here; we're talking about building an automated cash machine. It's not easy by any means.
“Even when I joined the company in 2000, Google was doing more sophisticated link computation than you would observe from the classic PageRank papers. If you believe that Google stopped innovating in link analysis, that’s a flawed assumption. Although we still refer to it as PageRank, Google’s ability to compute reputation based on links has advanced considerably over the years.”
Okay, if you're still with me, fantastic. You're one of the few that doesn't mind wading through a little bit of hopeless murkiness to reemerge on the shores of hope. But before we jump too far ahead, it's important to understand what online marketing is and what it isn't. That definition provides a core understanding of what it takes to peddle anything on the web, whether it's a product, service or information.
In early 2005, Google implemented a new value, "nofollow",[64] for the rel attribute of HTML link and anchor elements, so that website developers and bloggers can make links that Google will not consider for the purposes of PageRank—they are links that no longer constitute a "vote" in the PageRank system. The nofollow relationship was added in an attempt to help combat spamdexing.

Hi, Norman! PageRank is an indicator of authority and trust, and inbound links are a large factor in PageRank score. That said, it makes sense that you may not be seeing any significant increases in your PageRank after only four months; A four-month old website is still a wee lad! PageRank is a score you will see slowly increase over time as your website begins to make its mark on the industry and external websites begin to reference (or otherwise link to) your Web pages.

“So what happens when you have a page with “ten PageRank points” and ten outgoing links, and five of those links are nofollowed? Let’s leave aside the decay factor to focus on the core part of the question. Originally, the five links without nofollow would have flowed two points of PageRank each (in essence, the nofollowed links didn’t count toward the denominator when dividing PageRank by the outdegree of the page). More than a year ago, Google changed how the PageRank flows so that the five links without nofollow would flow one point of PageRank each.”
Your customers, prospects, and partners are the lifeblood of of your business. You need to build your marketing strategy around them. Step 1 of marketing is understanding what your customers want, which can be challenging when you’re dealing with such a diverse audience. This chapter will walk you through (1) the process of building personal connections at scale and (2) crafting customer value propositions that funnel back to ROI for your company.
There’s a misconception that creating an infographic is expensive; that's not always the case. Figure on an average price between $150 and $300. Assuming you may earn 10 backlinks per infographic, you'll be paying $15 per link. For five backlinks, the price will be $30 per link. That’s very cheap for backlinks earned through webmaster moderation. And if your infographic goes viral. you win even more.

Moreover, the PageRank mechanism is entirely general, so it can applied to any graph or network in any field. Currently, the PR formula is used in bibliometrics, social and information network analysis, and for link prediction and recommendation. It's even used for system analysis of road networks, as well as biology, chemistry, neuroscience, and physics.
A backlink is a reference comparable to a citation. The quantity, quality, and relevance of backlinks for a web page are among the factors that search engines like Google evaluate in order to estimate how important the page is.[2][3] PageRank calculates the score for each web page based on how all the web pages are connected among themselves, and is one of the variables that Google Search uses to determine how high a web page should go in search results.[4] This weighting of backlinks is analogous to citation analysis of books, scholarly papers, and academic journals.[1][3] A Topical PageRank has been researched and implemented as well, which gives more weight to backlinks coming from the page of a same topic as a target page. [5]
This is what happens to the numbers after 15 iterations…. Look at how the 5 nodes are all stabilizing to the same numbers. If we had started with all pages being 1, by the way, which is what most people tell you to do, this would have taken many more iterations to get to a stable set of numbers (and in fact – in this model – would not have stabilized at all)

Paid-for links and ads on your site MUST have a nofollow attribute (see Google’s policy on nofollow). If you have paid links that are left followed, the search engines might suspect you are trying to manipulate search results and slap your site with a ranking penalty. Google’s Penguin algorithm eats manipulative paid links for lunch, so stay off the menu by adding nofollow attributes where applicable.


A generalization of PageRank for the case of ranking two interacting groups of objects was described in [32] In applications it may be necessary to model systems having objects of two kinds where a weighted relation is defined on object pairs. This leads to considering bipartite graphs. For such graphs two related positive or nonnegative irreducible matrices corresponding to vertex partition sets can be defined. One can compute rankings of objects in both groups as eigenvectors corresponding to the maximal positive eigenvalues of these matrices. Normed eigenvectors exist and are unique by the Perron or Perron-Frobenius theorem. Example: consumers and products. The relation weight is the product consumption rate.


A PageRank results from a mathematical algorithm based on the webgraph, created by all World Wide Web pages as nodes and hyperlinks as edges, taking into consideration authority hubs such as cnn.com or usa.gov. The rank value indicates an importance of a particular page. A hyperlink to a page counts as a vote of support. The PageRank of a page is defined recursively and depends on the number and PageRank metric of all pages that link to it ("incoming links"). A page that is linked to by many pages with high PageRank receives a high rank itself.
In regards to link sculpting I think the pro’s of having the “no follow” attribute outweigh the few who might use it to link sculpt. Those crafty enough to link sculpt don’t actually need this attribute but it does make life easier and is a benefit. Without this attribute I would simply change the hierarchy of the internal linking structure of my site and yield the same results I would if the “no follow” attribute didn’t exist.
Another example when the “nofollow" attribute can come handy are widget links. If you are using a third party's widget to enrich the experience of your site and engage users, check if it contains any links that you did not intend to place on your site along with the widget. Some widgets may add links to your site which are not your editorial choice and contain anchor text that you as a webmaster may not control. If removing such unwanted links from the widget is not possible, you can always disable them with “nofollow" attribute. If you create a widget for functionality or content that you provide, make sure to include the nofollow on links in the default code snippet.
I really hope that folks don’t take the idea of disabling comments to heart… first that isn’t much fun for you the blog owner or your visitors. Second… I just did a cursory glance at the SERPS for ‘pagerank sculpting’ (how I found this post). Interestingly enough, the number of comments almost has a direct correlation with the ranking of the URL. I’m not so certain that there is a causal relationship there. But I would certainly consider that Google probably has figured out how to count comments on a WP blog and probably factors that into ranking. I know that I would.
What that means to us is that we can just go ahead and calculate a page’s PR without knowing the final value of the PR of the other pages. That seems strange but, basically, each time we run the calculation we’re getting a closer estimate of the final value. So all we need to do is remember the each value we calculate and repeat the calculations lots of times until the numbers stop changing much.
Think about the words that a user might search for to find a piece of your content. Users who know a lot about the topic might use different keywords in their search queries than someone who is new to the topic. For example, a long-time football fan might search for [fifa], an acronym for the Fédération Internationale de Football Association, while a new fan might use a more general query like [football playoffs]. Anticipating these differences in search behavior and accounting for them while writing your content (using a good mix of keyword phrases) could produce positive results. Google Ads provides a handy Keyword Planner34 that helps you discover new keyword variations and see the approximate search volume for each keyword. Also, Google Search Console provides you with the top search queries your site appears for and the ones that led the most users to your site in the Performance Report35.
Adjusting how Google treats nofollows is clearly a major shift (as the frenzy in the SEO community has demonstrated). So, if Google were to adjust how they treat nofollows they would need to phase it in gradually. I believe this latest (whether in 2008 or 2009) change is simply a move in the direction of greater changes to come regarding nofollow. It is the logical first step. 

There's a lot to learn when it comes to the internet marketing field in general, and the digital ether of the web is a crowded space filled with one know-it-all after another that wants to sell you the dream. However, what many people fail to do at the start, and something that Sharpe learned along the way, is to actually understand what's going on out there in the digital world and how businesses and e-commerce works in general, before diving in headfirst.
However, some of the world's top-earning blogs gross millions of dollars per month on autopilot. It's a great source of passive income and if you know what you're doing, you could earn a substantial living from it. You don't need millions of visitors per month to rake in the cash, but you do need to connect with your audience and have clarity in your voice.

What are "backlinks"? Backlinks are links that are directed towards your website. Also knows as Inbound links (IBL's). The number of backlinks is an indication of the popularity or importance of that website. Backlinks are important for SEO because some search engines, especially Google, will give more credit to websites that have a good number of quality backlinks, and consider those websites more relevant than others in their results pages for a search query.
Another reason is that if you're using an image as a link, the alt text for that image will be treated similarly to the anchor text of a text link. However, we don't recommend using too many images for links in your site's navigation when text links could serve the same purpose. Lastly, optimizing your image filenames and alt text makes it easier for image search projects like Google Image Search to better understand your images.
If you've read anything about or studied Search Engine Optimization, you've come across the term "backlink" at least once. For those of you new to SEO, you may be wondering what a backlink is, and why they are important. Backlinks have become so important to the scope of Search Engine Optimization, that they have become some of the main building blocks to good SEO. In this article, we will explain to you what a backlink is, why they are important, and what you can do to help gain them while avoiding getting into trouble with the Search Engines.
A great number of public networks call themselves “private”. That’s not true. If the network is advertised, it cannot be private. We witnessed cases when Google destroyed such public networks and all the websites which had used them. They are easy to be revealed due to a huge number of outbound homepage links which are irrelevant to each other. Their posts are short, and they cannot really block SEO crawlers.

Consumers today are driven by the experience. This shift from selling products to selling an experience requires a connection with customers on a deeper level, at every digital touch point. TheeDigital’s internet marketing professionals work to enhance the customer experience, grow your online presence, generate high-quality leads, and solve your business-level challenges through innovative, creative, and tactful internet marketing.

Brand awareness has been proven to work with more effectiveness in countries that are high in uncertainty avoidance, also these countries that have uncertainty avoidance; social media marketing works effectively. Yet brands must be careful not to be excessive on the use of this type of marketing, as well as solely relying on it as it may have implications that could negatively harness their image. Brands that represent themselves in an anthropomorphizing manner are more likely to succeed in situations where a brand is marketing to this demographic. "Since social media use can enhance the knowledge of the brand and thus decrease the uncertainty, it is possible that people with high uncertainty avoidance, such as the French, will particularly appreciate the high social media interaction with an anthropomorphized brand." Moreover, digital platform provides an ease to the brand and its customers to interact directly and exchange their motives virtually.[33]

8. Technical SEO. Technical SEO is one of the most intimidating portions of the SEO knowledge base, but it’s an essential one. Don’t let the name scare you; the most technical elements of SEO can be learned even if you don’t have any programming or website development experience. For example, you can easily learn how to update and replace your site’s robots.txt file, and with the help of an online template, you should be able to put together your sitemap efficiently.
Search engines are a powerful channel for connecting with new audiences. Companies like Google and Bing look to connect their customers with the best user experience possible. Step one of a strong SEO strategy is to make sure that your website content and products are the best that they can be. Step 2 is to communicate that user experience information to search engines so that you rank in the right place. SEO is competitive and has a reputation of being a black art. Here’s how to get started the right way.
I did this post because I wanted people to understand more about PageRank, how it works, and to clarify my answers at SMX Advanced. Yes, I would agree that Google itself solely decides how much PageRank will flow to each and every link on a particular page. But that’s no reason to make PageRank a complete black box; if I can help provide people with a more accurate mental model, overall I think that’s a good thing. For example, from your proposed paragraph I would strike the “The number of links doesn’t matter” sentence because most of the time the number of links do matter, and I’d prefer that people know that. I would agree with the rest of your paragraph explanation–which is why in my mind PageRank and our search result rankings qualifies as an opinion and not simply some rote computation. But just throwing out your single paragraph, while accurate (and a whole lot faster to write!), would have been deeply unsatisfying for a number of people who want to know more.
Now, back to that webmaster: When reaching out, be friendly and introduce yourself. Tell this individual that he or she is linking to some resources that are no longer available. Always provide the exact location of the broken links, so they can be easily found. Give some alternatives to replace those links, including your own website. Try to be helpful, not greedy to get a backlink. Often, this method will work, but there will be cases when the webmaster will refuse to link back to you.
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