How to add Favicon

Introduction
Favicon is a image\icon displayed alongside the address of a website and also shown as icon in your favorite/bookmark list of website.
image
How to add a favicon
  1. Create a icon (.ico) file which you want to show in address bar, on tab or icon in favorite item.
  2. Name it as favicon.ico and place it on the root folder of your website.
  3. Add below tag under <Head> section.
    <link href="favicon.ico" rel="Shortcut Icon" />
Points to remember
  1. Size of icon should not exceed dimension 16 x 16.
  2. Browsers can keep your favicon on their cache, so even if you have changed it, old icon can still be shown to user by browser. 
  3. In case above line of code is not working try using this.
    <link rel="icon" type="image/ico" href="favicon.ico" />