Search Engines: Link, the true value for Google

He says Jacopo well when he says that the link "is the basis that supports the World Wide Web"; Internet is a vast archive containing millions of hypertexts linked by a continuous exchange of information freely available and accessible without limitation of time or geographic boundaries.

The algorithm Pagerank ™, announced at the dawn of the third millennium with the high-flying "Bring Order to the web", was designed to classify based on democratic (and ultimately meritocratic) documents and resources on the Internet by introducing the concept the citation ranking, assimilating the hyperlink to a vote by the owner of a site to another site. The number of citations, then, as the yardstick for a webpage.

Needless to say, expectations generated by this type of ranking, on paper formidable, has been widely disregarded. As in its initial incarnation, a purely quantitative parameter before quality, the order that the algorithm should lead was soon transformed into absolute chaos.

In 2006-almost-2007, even taking into account the changes that have suffered over time the original formula Pagerank ™, we can no longer strictly from qualitative analysis of their link popularity. What s'intendano links as favourable quotes, vehicle information, the source of traffic or simply as a teller of Pagerank ™, it should begin to understand that not all the "votes" are the same and that under certain circumstances some may even be harmful.

To illustrate easily different impact that may have links to a web site use the word "force". A multidimensional force, given the amount of information that brings with it, but make two-dimensional cut under clear and concrete to be given that post.

On Topic.
And 'now commonly accepted principle that the best inbound, for the purposes of placement on the search engines, are those resources from "relevant" with yours. A concept, this very simple and intuitive. Yet the environment of professional search engine optimization (or alleged such) is teeming with Pagerank ™ - addicted for which place, often paying, their links to every corner of the web is the state of the link building. Quantity, not quality, based sull'errato assumption that a link is still a link!, And therefore has always usefulness.

I divided into four segments of the concept of a strong thematic link:


1. Overall: it is the main or dominant theme of the site, inferred from the title tag on the main page, content, inbound and outbound links;
2. Title Tag is the title of the web page that contains the hyperlink;
3. Page text: the textual content of the document linkante;
4. Anchor (text): the still, the term (or, in case of image, the attribute ALT), which is applied to connect.


As can be seen in the ideal world (= push higher) is when the link is "loaded" all the elements that make up the force issue.

NB: the graph segments are equal in size. This does not necessarily mean that the four types of force are equivalent theme. Simply weight on the engine damage to an item rather than to another with relative frequency varies; currently believe that great importance is given to the text of the web page. At one time was the anchor text (see Googlebombing).

Authorities and authority.
The dream of every prohibited developer of search engines is to provide its users with a list of documents authoritative and relevant to each key research. This is particularly evident in advanced engines like Google, which reward sites considered "authoritative source" with excellent placements and more weight to outbound links.

What a site for Google authoritative? Leaving aside any speculation on Trustrank and the like, a good resource is judged on the basis of:

* Age domain;
* Topic stability over time;
* Quality of the incoming link.



At the beginning of its existence, a domain (a site or, if you prefer) is in a sort of limbo. A point between full authority and total spam. It will be the quality of content (or the skill of Seo) to attract quotes from sites relevant and authoritative, well away from the red zone (inconsistency and spam) and settling in the area green (relevance and authority).

This is one aspect of the strategy of increased popularity that many webmasters tend to underestimate, in the belief that the links can never be harmful. I have personally witnessed the ban a site whose link popularity was based solely on comment spam and fake-blog created and abandoned after ten minutes. It 'a fact: too many "bad links" can be harmful, and not least, the image that has an engine of the site and, in serious cases, can cause removal from the index.

I think that the above image is worth more than a thousand words.

Pagerank ™
The last type of force that will take into consideration is already repeatedly appointed PR. Bistrattato in lounges and snobbato good to keep even the most low-profile webmaster (the green bar that shortens and lengthens is, if you like, a great symbol fallico), bargaining for faccendieri web. And 'one of the "hundred parameters which affect the ranking of a document, certainly not the most important, certainly the most fascinating.

Acquiring a value pagerank ™ medium / high (alias the URL of your document receives many incoming links) is important because it depends from the amount of resources that Google you will receive: the most frequent of spiders, indexing of a high number of pages , outbound more weight on that input.

Here then that the construction of priceless link, the inbound ideal, once it is verified topic and authority of its provenance, it will be useful to speculate on the amount of Pagerank ™ conveyed to the target page. This value will depend primarily from:

* REAL AP URL (PR shown by the Toolbar is not);

* Link (both external and internal) on the page: less is better;

* Propensity to sell the webmaster link that could lead to reset passed through external links.

Finally. Links are a weapon of which the search engine optimization can not do without. But unlike a time, it is of primary importance to dwell on the quality of their popularity: the old and ambiguous term "link popularity" has now been replaced by the most "web's opinion". Do not let the engines have a bad opinion of your site.