Changing the site to improve PageRank

The name PageRank, which takes as Google's own name, is a set of words between Page Rank, the page rank, and Larry Page, one of the two founders of the company, who owes his initial success to the implementation of the algorithm of the same name. He classifies web pages by their popularity on the web, therefore by the number of links to them.

This is the original algorithm described by Larry Page and Sergey Brin and is at the origins of Google.
The best PageRank will be obtained using a page with more links to it, but also depending on which PageRank the pages themselves have. If one page points to multiple others, the weight it brings is divided by the number of links. But since the weight acquired by quality links is embedded in the page, it will be transferred to the pages that this page points to.

In the act of classifying the results, PageRank acts at the second stage: in response to a request, pages are selected by the keywords contained in them. Pages containing the same keywords are then classified by a number of criteria, including PageRank.
Thus, the results can be obtained with zero PR, although some keywords can only be called one. On the other hand, in competitive research, PR is a determining factor in order to come out on top.

PR also takes into account the indexer robot: the number of pages that are broken during each crawler pass depends on the site's PageRank:

"The number of pages we scan (on your site, NDT) is almost proportional to your PageRank." - Matt Cutts.

Whether this factor is relevant in 2014, as it now depends on other factors, the assessment of the site, which Panda gives, the size of the site .

Knowing his PageRank isn't easy. The effect of PR depends on different queries that can be matched by the same page (hence groups of keywords).
A more meaningful way is to prepare a list of questions and conduct a search with each group of keywords. When your site appears on the first page of answers, PR is good for this group, and if it is in the top three, then great. It also depends on the number of venues competing for the group .

How it is calculated

PageRank does not depend on the content of the page, but on links to it (as well as outgoing links to a lesser extent).
The authors of the algorithm for links between all pages of the network make up the Markhov channel, which gives the probability of reaching a certain page in the shortest possible time.
To be simple, to get the best PageRank, you need many links to point to your site, and for these to be quality links, so coming from sites that themselves have many links to them.

A "vote" of a page is transitional, if A has a reference to B it increases the importance of B, and therefore if B has references on other pages it also improves their importance.
Also, if a page points to multiple links, the weight it brings is divided by the number of links (including links in nofollow that are recalculated).
Links between pages on the same site count, and they typically carry PageRank from page to page.
Reference: "Deeper inside PageRank" by A.N. Langville and S.D. Mayer.

Edit to Improve PageRank...

There are, however, honest techniques for increasing the site's PR... This is called SEO "white hat." The best way is to improve the quality of your pages, their originality, but revising its design will also help.

Wrong practices and mistakes

Such tricks tend to be discovered by Google, which requires websites that use these techniques to be condemned, which professionals are happy to do when their competitors resort to them. Sites that use what is called SEO "black hat" can be blacklisted and deindexed.

Further information