favicon

We are using favicon.ico image in our sites. Mostly we are setting it for our webpage through link tag as shown below.
<link rel="shortcut icon" href="http://hiox.org/images/favicon.png">
But it is not a right way to show it in your page.
To make it image cacheable. Just remove the "<link rel="shortcut icon" href="http://hiox.org/images/favicon.png">" line and upload your favicon.ico image at public_html folder