Where do browsers get the favicon if it is not on the site?

Question

Google Chrome

For example, on the site classifiedsgiant.com
A request to the favicon classifiedsgiant.com/favicon.ico will return 404 and redirect to the main page, but the favicon is still displayed in browsers.

Answer 1

...
<link href="/images/favicon.ico" type="image/x-icon" rel="shortcut icon">
...

Answer 2

<link rel="shortcut icon" type="image/x-icon" href="/images/favicon.ico"> - this is there in the html code