How This Search Engine Works………

By:SWATI LUTHRA

Roll No: 54MONICA

Roll No: 06April 11, 2023 1

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WHICH SEARCH ENGINE DO WHICH SEARCH ENGINE DO YOU USE?YOU USE?

•Google•Yahoo•Other

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HOW MANY OF YOU HAVE A HOW MANY OF YOU HAVE A GOOGLE ACCOUNT?GOOGLE ACCOUNT?

Yes/No

INTRODUCTIONINTRODUCTION

• Google is a web search engine owned by Google.Inc that brings whatever information you need.

• Google Search is the most-used search engine on the World Wide Web.

• Google Search was originally developed by Larry Page and Sergey Brine in 1997.

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GOOGLE’S MISSIONGOOGLE’S MISSION

““To organize the world's informationTo organize the world's information and make it universally accessible and make it universally accessible

and useful.” and useful.”

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HOW DOES GOOGLE WORK?HOW DOES GOOGLE WORK?

• Web Crawler• Indexer• Search Algorithm

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WEB CRAWLERWEB CRAWLER

• Googlebot finds and fetches web pages.• When googlebot fetches a page, it culls all the links

appearing on the page and adds them to a queue for subsequent crawling.

• Retrieves pages on the web and hands them off to the Google indexer.

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INDEXERINDEXER

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SEARCH ALGORITHM- SEARCH ALGORITHM- “PAGERANK”“PAGERANK”

A Web page's PageRank depends on a few factors:• The frequency and location of keywords within the

Web page.• How long the Web page has existed.• It's not easy to cheat the system.• The number of other Web pages that link to the

page in question.

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THE ACTION BUTTONSTHE ACTION BUTTONS

Google SearchGoogle Search

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I’m Feeling LuckyI’m Feeling LuckyDirectly displays the web page with the

highest rank

THE RESULTSTHE RESULTS

Type of Search

Number of Hits

Length of Time

Sponsored Links

(Paid Advertisements)

Definition of the Term

The title of the page

A “snippet” of text containing the search term(s)

The URL of the page

Links to similar pages

At the top of every Google search results page, Google displays a diminutive, but fully featured version of its home page

And, if the search term appears on more than one page on the site, a link to a list of those additional pages

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How Google doodle works?

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• Google slowly fades the image in over 10 steps of 50 milliseconds. After 500 milliseconds:

• <img> #2, displaying animation frame 2, is fully opaque and covers <img> #1.

• The top property of <img> #1 (which is now hidden by the fully opaque <img> #2 ) is increased so that <img> #1 now points at animation frame 3.

• JavaScript is now used to decrease the opacity of <img> #2 every 50 milliseconds This means <img> #2 (displaying animation frame 2) slowly becomes transparent, allowing <img> #1 (now displaying animation frame 3) to fade into view.

• The process repeatsApril 11, 2023 13

Focus on the user and all else will follow.

•Pages load instantly.

•The interface is clear and simple.

•Advertising on the site must offer relevant content and not be a distraction

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•AdWords

•AdSense

How Google earns its bread

And they say it :“You can make money without doing evil.”

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Future challenges of

Technical• Video search challenge.• Increasing their web pages.• Increasing their bandwidth.

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What can Trip up ?

•Media scared of the Giant.

•Partnerships & Acquisitions

•New streams of Revenue

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What can Trip up ?

•Media scared of the Giant.

•Partnerships & Acquisitions

•New streams of Revenue

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THANK YOU!

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