favorite icon in the address bar

Does anybody know how Google load the favorite icon on their homepage?

There is no link tag in the head. So, I thought that the icon is loaded through JavaScript but that is not the case. I've cleared the cache and disabled the JavaScript and still there is a favorite icon i开发者_如何学编程n the address bar.

Thanks, Teo

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A favicon.ico file in the root of the website will be displayed in most modern browsers - you don't need to explicitly link to it.