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What is Search Engine & How does Search Engine works?

Definition- Search Engine is a software program that searches in the database and serves the best result with user-specified keywords.
There is so many search engines are there on the web but 83% of people are using 鈥楪OOGLE 鈥?search engine. Because this search engine is very easy to use Andrew Ladd Womens Jersey , page load time, performance is much better than other search engines.
Example of Search Engine- Google, Bing Mathew Barzal Womens Jersey , Yahoo, DuckDuckGo, etc.
Basic Types of Search Engine:


1. Web Directory Search Engine- Web directory search engine is not much use by people. The concept is submitted manually our page description Anthony Beauvillier Jersey , Title. Keywords and which category belongs to your web page and select the subcategory with Url. This lengthy process is already changed and everything is now automated.
Ex-Yahoo directory


2. Crawler-Based Search Engine- It is the best popular search engine. The name 鈥楥RAWLER鈥?means to crawl the web page. But who crawl our web page? That question is immediately come to our mind right!
Actually, when we search in Google it is nothing but web searching.


sear-engine-works



How Does it Work?
A software program which is used for crawling is called Spider. It is a 鈥榖ot鈥?file. Google is using Google bot, Bing search engine use Bing bot Casey Cizikas Jersey , Yahoo is using Yahoo_slurp. In Crawler-Based Search Engine follows 3 steps:


a>CRAWLING: When the spider comes to any web page first: First it starts fetching a few web pages and it follows the link on that pages. And follows the link where it points to and again follow the pages they link to and search the pages they link to and so on. After crawling every page it will take a snap or photo Copy of the page called as a snapshot. Whenever crawler will come for crawl any page it will leave the date and time it is called cache Date.



search-engine-works
Crawling-Indexing-Serving



b> INDEXING: After complete the crawling of the web page it will give the index of the page and save into a big trunk database. Index depends on how many times the keywords appear on the page title, URL and quality of the website or spam. But in a web more than thousands of results are there but which page is the best according to user search keywords to serve the result. This concept is invented by Larry Page and Sergey Brin the formula is Page rank.


c> SERVING: In page rank will check how many External Link is the point to your webpage and importance of my webpage, it combined all the factors and deliver the best and useful result to the user according to their search keywords.


3. Meta Search Engine: This search engine works by taking input from the users and send the request to the other third-party search result and concatenate the result from the database and deliver the best response result page to the users.
Ex- Dogpile Adam Pelech Jersey ,


> Conclusion- All search engine works on particular Algorithms. Each algorithm has a specified task. Google always give the hints to get the highest ranking page by creating a unique best content, keywords density and quality do- follow links these are all matters a lot to get the top rank in search engine result page(SERP).

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