Today is an era of web (www: World Wide Web) where everything is available is now available on web.  Today every organisation uses web not only to provide services to their client but also running their own business functions online.  These days web is in very high demand due to its hassle free availability. The users are really concerned about responsive time of the websites. If any page takes more than 3 sec to load, it is regarded as slow and leads to a large impact on business.

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