What you need to know about search engines
There is a so much misinformation about search engines, the secrets, the black hole, etc. I am finally going to simply everything you need to know to have a search engine friendly site. Without getting into technical details or programming jargon, a search engine’s functionality can best be compared to the index of a book. With this analogy, you need to consider the entire internet to be the book, and the search engine to be an electronic index that knows the contents of every page it can find. If you’re planning to invest in Search Engine Optimization (SEO) then your goal is to get your website into that index, and make it as prominent as possible.
Information Gathering and Processing
So then, how does a search engine gather its information? It sends out programs, which are known in the trade as “robots” (because they work automatically) or “spiders” (because they crawl the World Wide Web.) These programs gather all the information on your website that they can find, or that you allow them to see.
Information gathered by a search engine then gets “cached,” or stored, in the search engine’s servers, where the pages of one website are dissected and categorized among results for every other online page that a search engine can find. As an illustration, you can go to Google, do a search on the word “the,” and find billions of results. This is because Google is returning the number of pages on the internet that contain the word “the,” and it has listed them in its perceived order of importance.
SERPs – Search Engine Results Pages
Most search engines will deliver 10 results on a page for any keyword query. Search Engine Results Pages (or SERPs) generally continue into infinity, with each page showing web pages that are (ideally) less relevant as you go down the list. In the past, the user would get a bland list of SERPs in the form of 10 blocks of text, which may have shown the page’s Title, Description, and URL. Over the past couple of years, “universal search” results will now show images, video results, and maps incorporated into the results. Some searches will also serve up definitions, weather forecasts, and movie show times. A Google search on 2+2 will likely give you the answer “4″ without the presentation of any relevant sites with the same content. This information should be in the back of any website owner’s mind, because new ways of presenting information may mean that alternative search engine presentation methods may be necessary, depending on the site owner’s audience.
How Search Engines Figure Things Out
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