A favicon is a small image displayed next to the page title in the browser tab.
How To Add a Favicon in HTML:-
You can use any image you like as your favicon. You can also create your own favicon on sites like https://www.favicon.cc.
Tip: A favicon is a small image, so it should be a simple image with high contrast.
A favicon image is displayed to the left of the page title in the browser tab, like this:
To add a favicon to your website, either save your favicon image to the root directory of your webserver, or create a folder in the root directory called images, and save your favicon image in this folder. A common name for a favicon image is "favicon.ico".
Next, add a <link>
element to your "index.html" file, after the <title>
element, like this:
Example
<!DOCTYPE html>
<html>
<head>
<title>My Page Title</title>
<link rel="icon" type="image/x-icon" href="/images/favicon.ico">
</head>
<body>
<h1>This is a Heading</h1>
<p>This is a paragraph.</p>
</body>
</html>
<html>
<head>
<title>My Page Title</title>
<link rel="icon" type="image/x-icon" href="/images/favicon.ico">
</head>
<body>
<h1>This is a Heading</h1>
<p>This is a paragraph.</p>
</body>
</html>
Now, save the "index.html" file and reload it in your browser. Your browser tab should now display your favicon image to the left of the page title.