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Working of the web.

Understanding the Web


How the Web works?

Now for many of us it is quite simple as to getting on to the phone opening the browser and there you are connected to the digital world of the web or the internet, well it is somewhat true and most of us don't even bother to think much but there is a lot of things going on under the hood of those beautiful interface of our browsers.Being in a digital age and being connected to the web gives us a lot of power and as we all know with great power comes great responsibilities. Cyber threats have always been a big concern for everyone and being secure is what we all want so the proper understanding of the web is needed as for the first step towards security.So lets see what really happens under the hood when we search something on the web:



  1. We open the browser, we type in the URL(website name/whatever we want to search).
  2. The website name is saved in the history cache of the browser (according to our browser settings ,if in incognito mode the history is not saved)
  3. Now here's what really happens our system starts searching for the IP address of the URL(that we have typed in) in the default DNS server.
  4. Ones the system gets the IP address the it connects to the server of the given IP address at the default web port, 80 TCP if e use HTTP:// or 443 TCP if we use HTTPS://(for HTTPS:// there are various certification checking done so we will not go into deep for now ) for most of us the default web port will be 443 TCP as nowadays most of these websites we visit use a secure protocol and HTTPS:// is a secure protocol .
  5. our system then requests for the page or the directory that we have specified and if not specified by default the server open the index.htm (it is the server that decides which is to be opened by default )
  6. When the page is fully loaded we think everything is quiet but no now those other pages associated with the page we are in are being loaded in the background and stored in the cache of our hard-disk.(for faster browsing experience).          


So for now we have a glimpse overview of what happens under the hood and we have a better understanding of as to what happens when we are online .

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