SEARCH ENGINE OPTIMIZATION ; SEARCH ENGINE ANATOMY

Studies have shown that most searchers always click on the first page search results. This is because those websites rank better than others and this is so because their website content was better search-engine optimized than others. Getting your website to show on the top search results cannot be overemphasized. In order to you to make money out of your website, you need first to get traffic and traffic comes through proper search engine optimization.
Search Engine Optimization(SEO) is a technique that you apply to your website that makes it rank higher than other sites in response to a search query. For you to appreciate SEO more you need to understand the workings of a Search Engine.

THE SEARCH ENGINE "ANATOMY"
Basically, there are three types of search engine;
i. Powered by Robots(crawlers-ants or spiders)
ii. Powered by Human submission
iii. Powered by both (hybrid)
Crawler based search engines are those that use automated software to index the billions of
files online. Human-powered Search engines depend on humans for its listings. In order to deliver search
results, search engines perform tasks such as crawling, indexing, processing, calculating relevancy of data, and retrieving.
Search engines crawl the web to search for data this task is usually performed by a crawler or more preferably a spider. Spiders index everything they find after following links from one page to another. Considering the vast amount of web pages on the Internet today, it is somewhat impossible for spiders to visit a site on a daily basis just to check if there is  a change in content.
After your website have been crawled, it is indexed. The indexed website is store in a very large database, from where it can be referred to later.The process of index involves identifying the words that best describe the website and thus assigning keywords to it. It is not all the time that a spider gets the information in a website right that is why you need to optimize your website for search engines - this increases your site rankings.
When the search engine receives a search query, it analyzes or processes it comparing the search query with the indexed pages in the database and since there are millions of pages containing the same search string, the search engine brings out the most relevant data first. This is possible by the workings of algorithms. The last part in the process is the retrieval of the results this is achieved when the search engine displays the results in the browser showing the most relevant sites first.
One of the first steps to optimizing your website for search engines is the addition of meta tags to your website. Meta tags are tags that tells search engines what your site is for. Meta tags allow search engines to index your page more accurately.
To Add copy and paste the code below into the root directory of your website. If you have a blog on Bloggers, click on Templates > Edit HTML>
<meta content='DESCRIPTION HERE' name='description' />
<meta content='KEYWORDS HERE' name='keywords' />
<meta content='AUTHOR NAME HERE' name ='author'/>
NOTE TO BLOGGER USERS
Add the code above just after
<b: include data='blog' name='all-head-content' />
Presto! You are good to go!