SEP | 2014
SEO in the simplest means improving the website so that it will appear at the topmost positions of the search results of the search engines like Google, Yahoo, Bing etc. Thus seo helps us to get traffic from search engines. In the case of eCommerce Development we dont have much keywords to choose from. The first basic truth that you need to know is that these search engines arent humans. These search engines are far from intelligent creatures that can feel the beauty of a cool design or enjoy a moving picture or a sound or video clip although the technology advances.
There are several processes like crawling, indexing, processing, calculating the relevance and retrieving done by the search engine to deliver the search results. A section of software called crawler or a spider will crawls the website and sees the content. They follow the link from one page to another and index everything they find on their way. So it is impossible for a spider to check the a site daily to find a new page has been added or an existing page have been modified or removed having in mind a number of pages on the web. Therefore sometimes the crawlers do not end up visiting your site for a month or two.
The next step is to index its content. Indexing process of identifying the words and expressions that best describe the page and assigning the page to particular keywords. For a human it will not be possible to process such amounts of information but generally SEO deal just fine with this task. Sometimes they might not get the meaning of a page right but if you help them by optimizing it, it will be easier for them to classify your pages correctly and for you to get higher rankings.
Processing is a process of comparing the search string in the search request with the indexed pages. The calculation of relevancy is another important part. With the search string the search engine calculates the relavency of each pages in the index. Last comes the retrieving. It is just the displaying of the search results in the browser. The results are sorted in the manner of the most relevant sites to the least relevant.