Search Engine Optimization
Search Engine Optimization (SEO) is the process of getting traffic from the free listings on search engines. All major search engines such as Google, Yahoo, and Bing have such results, where web pages and other content such as videos or local listings are shown and ranked based on what the search engine considers most relevant.
No single SEO factor will guarantee search engine rankings. Having a great HTML title won’t help if a page has low quality content. Having many links won’t help if they are low quality links. But having several positive factors can increase the odds of success. As for negative factors, they obviously can worsen the odds.
On The Page search ranking factors are those that are entirely within the publisher’s own control. What type of content do you publish? Are you providing important HTML clues that help search engines with determining relevancy? How does your site architecture help or hinder search engines? These are all important questions to keep in mind.
Off The Page ranking factors are those that publishers cannot directly control. Search engines use these because they learned long ago publisher signals alone don’t help relevancy. Some publishers will try to make themselves seem more relevant than they are, for example.
More important, with billions of web pages to sort through, looking only at on-the-page clues isn’t enough. More signals are needed to better estimate what are the best pages for any particular search.
Blocking is a new class of ranking signal. This is where searchers themselves may decide they don’t like pages from a particular web site, even if those web sites don’t violate any traditional spam rules.
Blocking has a big impact on what the individual who blocks sees, but it also has an impact on what every searcher sees.