Check out example codes for "how to add favicon in html". It will help you in understanding the concepts better.
Code Example 1
<link rel="icon" href="yourIcon.png" type="image/png">
Code Example 2
<head>
<title>Webpage</title>
<link rel="icon" type="image/gif/png" href="favicon.png">
</head>
Code Example 3
<link rel="icon" href="http://example.com/favicon.png">
Code Example 4
<link rel="shortcut icon" type="image/png" href="Link to the image"/>
Code Example 5
<link rel="icon" type="image/png" href="/favicon.png"/>
Code Example 6
<link rel="icon" type="image/png" href="/favicon.png"/>
<link rel="icon" type="image/png" href="https://example.com/favicon.png"/>
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