What is SEO?
You might have typed any query in search engine and hit enter and you get list of websites related to your search query. Users normally click the top of the link which they get in the Search Engine Result Pages (SERPs)since they perceive those are most relevant to the search queries. If you Wonder how some of these websites get ranked top in the search engines better than other websites then you must about the power of web marketing technique called Search Engine Optimization (SEO)
Search Engine Optimization (SEO)is the Technique which will help the Search Engine to rank your website higher than other millions of website that relates your search query. SEO will help you to get more traffic from Search Engines.
This SEO Tutorial will provide you all the necessary information that you want know about Search Engine Optimization (SEO)- what is it, How does SEO works, what's the major difference in ranking criteria of other Search Engine...etc.,
1. How Search Engines Work
The first thing you need to know about Search Engine is that Search Engine is not a human. Search Engine and human visit the website entirely different from each other since Search Engines are text-driven. Search Engines are brilliant than human in understanding the website. Search Engine can even enjoy the beauty of your site design, sounds, the movement of the pictures...etc., But please remember that Search Engines cannot read the Java scripts, texts in the pictures, frames, flash movies, password-protected pages, directories. So if you have tons of these in your website then it wont help your site to get ranked in any Search Engines.
The main work of search engine is to crawl the webpage and looking for the important information (mainly text) to get an idea of what the webpage contains. Then they perform several activities to deliver the search results - crawling, indexing, processing, calculating relevancy, and retrieving. First, the Search Engines Crawl the Webpage to see what is there. This task is performed by the software called Spider (or Googlebot, for Google). Spider follows links from one webpage to another and they index everything they see in the webpage. Spider will Crawl more than 20 billion webpages per day.
It is impossible for a Spider to crawl your website to see if a new page is created or an existing pages has been modified. What you can do is that you can help the Spider to understand and crawl your website by knowing the SEO.
The next step for the Spider is to Index its content. The Indexing is the process of identifying the words and phrases that will best describes the webpage and making a note of it in a giant database that tells what the particular webpage contains and where it is stored and when it is last modified etc., This work is very much difficult and impossible for a human to carryout indexing of such large set of information but for the Search Engines it is a simple task. Some times Search Engines cannot get the meaning of what the webpage is all about. In such case, you help them to optimize your website, it will very much easier for them to classify and arrange your webpages correctly for you to get higher rank in the Search Engines.
Whenever you search a word or string in the Search engines like Google, Yahoo then the Search Engine Process it. Processing is nothing but the Search Engine will compare your search query with the Indexed contents in its database. Practically there will be more than millions of webpages can contain your search query so the Search Engine will start calculating the Relevancy of each webpages indexed in the database with your search query.
There are several Algorithms are used to calculate the relevancy. Each of these Algorithms will give different relative Weights to most used common factors like meta tags, links or keyword density. This is the reason for most of the Search Engines gives you different Search Results for same Search query. All Search Engines changes their Algorithms periodically. So if you want be at top, you all also need to adopt those changes in your webpages.
2. All search Engines are not same
