It grew to become out that by using incorporating this into their set of rules, Google turned into able to serve a whole lot greater beneficial and applicable search results than their competitors at the time. It was so effective as it became primarily based upon the idea that a hyperlink can be visible as a vote of confidence approximately a web page, i.E. It would not get hyperlinks if it didn't should.
Once search engines like google have crawled pages on the
internet, they can extract the content material of these pages and upload it to
their indexes. In this manner, they can determine in the event that they
experience a web page that is of sufficient first-class to be ranked properly
for applicable keywords (Google created a quick video to provide an explanation
for that procedure.)
HERE IS THE LINKS