How Google Crawling done , seo and sem

1. Rajdeep S. Shaktawat – Mtech CSE

2. Generation of Internet
 Web 1.0 – A read only system
 Web 2.0 – Users Posted content Ex Facebook, Blogging
 Web 3.0 – Smart Database Used by Amazon , LastFm
 Characteristics of web 3.0
 Semantic web
 Media Centric web

3. What is SEO and SEM
 Search Engine marketing : SEM is all that a company
can do to advertise itself on a search engine,
including paid inclusion and other ads
 Search Engine optimization : Process of improving
the visibility of a website or a webpage in search
engines via the "natural," or un-paid

5. Google Search Work – Crawling ,
Indexing and Ranking
 What is a web Crawler?
 Page Rank one of first factor out of 200 factors google
consider for showing result in organic search result

7. Keyword Density and Indexing
 Keyword Density is defined as ratio of keyword
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occuring in document by total words in document
7-10 % K.D make Keyword.
How Indexing is done
A Unique no is provided to each web page on website
Keyword : Temperature Sensors
Temperature occuring on pages 1, 5, 10.
Sensors on 1,10,15
No 10 page will be displayed on this keyword

8. GooGle Crawling in 2000
 Pages with High Page Rank are Crawled More
 Crawling Indexing takes a month per website
 Data refresh in not reflected in search engine for
weeks.
 Oragnic search results are affected

9. GooGle Changes Search Scenerio in
2003
Web
Web Web Web
Part 1 Part 2 part 3

10. How Search Works
 First Google use web spiders to index the pages.
 Keyword is put in web search.
 Pages are return that contain the Keyword, Which are
many in no.
 Google searches many factors for ranking these pages
and return this result to user.
 Google Algorithm Panda and Penguin to penalize
spam sites

11. Why bother with search Engines
 81% of Internet consumers find web sites
via search engines & directories.
 Top 30 results receive over 90% of search
traffic.
 If your site is not in the Top 30, it most
likely won’t be found.

12. Example of Unique Visits on
website

13. Conclusion
 SEO serves as the best way to be at the top position of
search engines.
 More visitors more traffic increase the value of website
which in return increases the sales of company.

14. Thank you …..
 Any Questions ??????