How Search Engines Works?

 How Search Engines Works? 

Your Search very often on search engines like Google.com almost daily...Right !!

Now most people think,that Google or Other search engine searches the Web or Websites and Provides SERS. But this is Not 100% True. First we need to understand Crawing..

 What is crawling??

Search engines provide search results form their OWN database. Search Engines have their own Crawles (like Google Bot Fo Google) . in other words Search Engine Bots, look for relevant information all over the internet and store them in their knowledge base..

That's why we create and sumit "SiteMap" using Webmaster Tools, So that we can tell more about our website structure to Search Engines.These topics are covered with detailed topics in Technical SEO Module. 

 Common Question??

I Just Created a Web Page Or Blog Post Or even launched a new website, but it is not Showing in Google Search Results

We had already discussed this few moment ago, that google or other search engines don't provide results directly from websites.but rather they provide results from the sites they had crawled This leads to our next question

 How Often does Search Engines Crawl a Site ?

As per our experience and test results generally it may take upto few weeks to crawl a normal website. Your website or pages will be shown in search results only after Crawilng of such pages has been completed by search engine spiders.

How ever the frequency to crawl differs from website to website.

For e.g. Awebsite with high domain authority like cnn.com publishes fress and impotrant news content a high frequency . Hence chances are that Googlebot or other search engine spiders may crawl such websites on daily basis or even multiple times a day.

 What does Google Say ?

There is no accurate measure available but below are the words by Google "Google's spiders regularly crawl the web to rebuild our index. Crawls area based on many factors such as PageRank, link to a page, and crawling constraints such as the numberof parameters in a URL. Any number of factors can affect the crawl frequency of individual sites .

Our crawl process is algorithmic computer programs determine which sites to crawl, how often and how many pages to fetch from each site.We don't accept payment to crawl a site more frequently

What does Google Say ?

After crawling has been done,Google Bot decides whether to index a web page or not depending on many factors.

In simple words indexing is a process of adding web sites and  webpage to google search.

Refer SEO Level 3 (Technic SEO ) Module for more detail on how you can submit your web page or blog for indexing using Google Webmaster Tool.