What is a Web Application?

web application or Cloud Base application is any application that is accessed over an internet connection using HTTP, rather than existing within a device’s memory. Web based applications often run inside a web browser.


Web applications, or web apps, are a huge part of the way the internet works! Your bank website that allows you to access your balance, transfer cash etc is good example of web application. Youtube, Twitter, Facebook, Gmail, Yahoo websites and even Meredox Ltd websites are examples of popular web application. Let’s look at the big picture to see how web application server you dynamic web page content as you browse the internet.


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First, let’s look at the difference between dynamic and non-dynamic websites. When visiting non-dynamic websites, your web browser will make the initial HTTP requests to download the HTML, CSS, and other files needed to create the initial webpage that you want to browse. But, once the web page is loaded, the web browser or the website won’t send any more HTTP requests to the web server to ask updates. What you see is what you get.


On the other hand, dynamic web application knows how to build or update themselves on demand. More specifically, dynamic web application often use JavaScript, Ajax, PHP, and/or long polling to make HTTP requests to the web server to ask for updates or new content. This could happen based on demand or on a regular cadence depending on how the web application is developed. If new updates are available, the web application will update itself accordingly and display to the visitor.


Let’s look at the Facebook news feed as an example. Picture yourself in front of your computer, looking at your news feed in your favorite web browser.


This is what is happening under the hood: When you first load Facebook, which is a web application in this case, your browser will make the initial HTTP requests to build up your newsfeed for you. Once your news feed is pieced together, the Facebook web app will continue to talk to the Facebook servers via HTTP requests to ask for new updates, and if updates are available, your news feed will be updated accordingly. That’s why you’ll see new stories getting automatically added to your newsfeed.