This is very common questions that I hear from most of my client when we have discussion about there SEO strategies and when due to changes in search engine algorithm there ranking dips down. The search engine works on a very basic strategy and their common goal is to provide information to their searchers, the exact information. The competition comes between them, is how effective, accurate and quick result they show to their searcher. Google is one of the giant or if I am not wrong than it’s the only giant among this race. It holds more than 75% of the search market score and then there come other thousands of search engine, which were there before google.

So, let’s come on the topic of how google works and how it shows accurate results for every search term?

I will tell you to listen it from Matt Cutt itself from Google from this video, however, I will give you a brief description of how it works?

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How Search Works – Matt Cutt
The basic component that Google has is servers for storing copies of web pages and Google Bot. The important invention of this era.

Now, this Google Bot, is also called as spider, this spider comprises of “crawler” and “Indexer”.

Since you now know the basic terms of Google, lets start how it work. I will exaplain this with an example.
Let say, Google has decided that this 200 websites are most important from its point of view. A very fixed and small but famous websites, like CNN or BBC.com. It will then send it’s spider on this 200 websites. This crawler(Spider component) will make a note of all other links present on that web page and the indexer(another spider component) will make a copy of it and will store it on their server i.e. it indexes the page.
The crawler then crawl to every other link that it find on that page and start indexing it one by one. Each spider indexes thousands of webpages per second. And Google believes that this way, they can index the entire web and it’s working for them and for all search engine.

So, now the next question comes to my mind is what is the difference between Google and Other Search Engine? Why the result for any particular keywords differs in every search engine. And why Google is in top if all search engine works in the same fashion?

The answer is simple. It’s the Google Pagerank. The invention by Sergey Brain and Larry Page (Please forgive me to misspell their name, but I guess it’s correct). It’s a top secret algorithm, which both this partner invented and which rules the market. This is the technology by which they rank each webpage for any search query.

So, basically how it works is, Google indexes every page on internet. However, depending on some query or protocols, it rearrange it in format to save it. So, it has categories and sub-categories to store the data. Now, when you search any keyword, say flower shop florida, it searches the florist or whatever named category for it, which Google thinks is the best, and then sets the pages as per few other algorithm query in order and show as a result. It does it every time when people search on Google. And Google has come out accurate every time. There are more then 1 billion searches every day on Google.

So, the Search Engine Optimization or SEO comes into picture where a webmaster needs to understand thoroughly what factors effects the algorithm to give ranking to a particular web-page and based on that they start charging their client. But beware, as there is no degree or proof or institute which can certify for SEO Experts many people with little or no information starts acquiring clients. I will explain in my next article, what you need to take care before you choose an SEO Company.