WEB APPLICATION DESIGN :

Search Engine's Web Application Design has three modules:

  1. Controller Module
  2. Fetcher Module
  3. Parse Module

Controller Module:

Search Engine's Interface is called Controller Module and it is also known as GUI (Graphical User Interface)

 

Fetchure Module:

When we submit a website or URL the module which gets the site or detch the data of sites/Url/Pages is called Fetchure Module

 

Parse Module:

The process of sending Sites/Url/Pages data to the Data bases is Called Parse module.

 

Importance of Relevancy and Popularity:

Generally Sites/Pages/Links gets Page Rank because of their relevancy to the user's query but some times some sites gets the page rank for their popularity. to understand this assume that we have to search Haward university and we type Haward Unversity in Google's Interface, inspite of providing a link to Haward University it provide us a link of OHIO State which is popular because of having many universities in it.

Factors Of Ranking By Google:

  1. Domain name is counted 24% in weight for page ranking. If someone gets the domain nameaccording to his keyword then he can get a good page rank.
  2. Interlinking and Link Popularity is counted 22% in weight for page ranking
  3. External Link/Outbound Link/Outside Links are counted 20% in weight for page ranking
  4. On-Page Keywords usage is counted 15% in weight for page ranking.
  5. Registration ,Hosting of Domain and Data Relevancy are counted 6.9% to 7% in weight for page ranking.
  6. Traffic is counted 6% in weight for page ranking
  7. Social Graph is counted 5% to 5.3% in weight for page ranking.

Rules on which Search Engines provides Page Ranks:

YAHOO:

SLOGAN:"WHERE THE WORD CHECKS IN EVERY DAY"
Ranking Rules:

  1. No.Of Outbound links
  2. Content of Page
  3. Updates
  4. New Product Version
  5. Additonal Sites Discovery
  6. Changes of Algorithms and other factors

BING:

"Search Engine of Microsoft Corporation "

SLOGAN:"FABULOUS DECISIONS ENGINE"
Ranking Rules:
  1. Visible Text (Keyword based) Includes words of search user's query.
  2. Limit the page size (on a reasonable size).
  3. Recommend one topic on one page.
  4. HTML pages should not contain images of size less than 150kb.
  5. Make search page accessible from one static link.
  6. Don't put the name,address,phone no. in Company logo or images.

 

GOOGLE:

SLOGAN:"KING OF SEARCH ENGINES"
Ranking Factors:"
  1. Make pages primarily for the users not for Search Engines
  2. Don't Deceive your User. (Cloaking and Redirection should not be done)
  3. Make a site with complete Hierarchy (sitemap.xml)
  4. Create useful informtion.(your pages should clearly describe your image)
  5. Make sure your "title" and "alt" tags are descriptive
  6. Keep the links on a given page not more than 100

 

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