Any way to grab a logo icon from website URL, programmatically?

Question

I am in the process of creating an activity where I will show the list of website visited with its logo and its alias name chosen by user.

e.g.

Answer 1

Use this website:

https://besticon-demo.herokuapp.com/allicons.json?url=www.stackoverflow.com

It will find all logos for a website in multiple sizes and return a nice json string with meta data including the url to the icon. You simply replace www.stackoverflow.com with your domain.

The site also has a gui for entering in websites manually if you prefer:

https://besticon-demo.herokuapp.com/

Here is a sample string returned from querying for the stack overflow website:

{
   "url":"www.stackoverflow.com",
   "icons":[
      {
         "url":"http://stackoverflow.com/apple-touch-icon.png",
         "width":158,
         "height":158,
         "format":"png",
         "bytes":3445,
         "error":null,
         "sha1sum":"c78bd457575a3221c6b3d0d17ffb00ffc63d7cd0"
      },
      {
         "url":"http://cdn.sstatic.net/Sites/stackoverflow/img/favicon.ico?v=4f32ecc8f43d",
         "width":32,
         "height":32,
         "format":"ico",
         "bytes":5430,
         "error":null,
         "sha1sum":"4f32ecc8f43d0986b9c6ce9f37999e86c0b829ef"
      },
      {
         "url":"http://stackoverflow.com/favicon.ico",
         "width":32,
         "height":32,
         "format":"ico",
         "bytes":5430,
         "error":null,
         "sha1sum":"4f32ecc8f43d0986b9c6ce9f37999e86c0b829ef"
      }
   ]
}