Search Engines (SE´s) are now relying on the science of information retrieval (IR) and the two critical components for the functionality. First, relevance in which the degree of the documents is being returned by the search engine, depending on the purpose and terms that matched the user´s query. Second, is the popularity when relative importance is being measure by reference of a given document that matches the terms or phrase of the search user´s.
The two decisive components have been translated to web search in the form of document analysis and link analysis. In document analysis, SE looks at in the form of essential HTML (Meta tags, heading, alt text and body) and the quality itself. While, in link analysis is not only measure the quality of link but also consider what they say about that page or site.
Comments
Something like this:
Custom Software Development
Month after month links are loosing their importance!