Search Engine, Its Working and Types-II

Hi and Welcome back  friends in TechMania. In the last Post we had learn about Search Engine their Architecture, Working and about Web Crawler if you miss that kindly read the Search Engine, Its Working and Types-I  for more clearance of this post . Today we'll continue with last topic that is Search Engine, Its Working and Types-II. In this we are going to learn .......................

• Types of search engine
• Web directory 
• Difference between search engine and web directory
• Market share of various search engine
• Play with Google

Types of search engine

Different blogger catogerize the on various basis but on the their working Search Engine Mainly classify into four category that is mention below:-

1. Crawler based search engine
2.  Meta search engine 
3.  Hybrid search engine
4.  Web directories

1. Crawler based search engine

• Crawler based search engine work with the help of web spider.
• Web spider searches a webpage, download it and analysis the information presented on the webpage and add to the search engine database
• Crawler based search engines are constantly search the internet for new webpage and updating their database
•   Example:- Google , Ask Jeeves, Aliweb, Baidu etc. 

Crawler Based Search Engine

2.Meta Search Engine 

• Take the result from other search engines and web directories like Google, MSN, Lycos etc.
• User can send one request simultaneously to multiple search engine without user intervention
• Meta search receives various result from different search engine and try to extract the most relevant hits
• Example:-Meta crawler, Dogpile, Fazzle, Bighub, kartoo, Infogrid, IceRocket etc.  

3.Web Directories

• Highly structured way of searching information on the WWW.
• Information is organised in hierarchical tree structure .
• Web directory may be organised by alphabetically or topically.
• Also known as indexes or catalogues.
• Web Directories are managed in search engine by directory staff.
• Some directory are paid while other are free.
• Goggle, Yahoo, Looksmart, Zeal, Galaxy, Index,  Apollo, Gimpsy, Excite etc. are the search engine that maintain web directory.

Difference Between Search Engine And Web Directories

4.Hybrid Search Engine

• Hybrid search engine is combination of crawler based search engine and web directory
• Result of the hybrid search engine is shown by the combination of both result
• Example:- yahoo and Bing  

Page Ranking criteria

Different search engine have different ranking criteria of web page. Their ranking criteria can be based on ...........

• Frequency of searched keyword in webpage.
• Number of links(internal or external link).
• Location of keyword either in title or page description.
• Number of clicks on particular webpage.

Market share of various search engine

In the below the market share of various search engine is given below of year 2013 and 2014. After the Google, Baidu search engine have more market share.

Note: Baidu is the China's most used search engine/Browser. In China Google is banned.

Play with Google

To know how play with google play see video!!!!!!!!!!!!!!!!!!!

So friends this is all about search engine how was this topic kindly post your comments so that I'll make more better if you want to know about any specific topic please sent topic name I'll post article on that topic in simple words.I will wait for your comments and reviews.

Good Bye and Have a Nice Day!!!!!!!!!!!!!!