A favicon, a.k.a. website icon, can be associated with your website and represent your business. Websites with favicons look more professional and make your business more recognizable. Here's how to get one:
Find your icon. I like IconFinder, it's free and premium options are available.
Download your icon in .png format and visit Favicon.io.
Click "Generate from Image" to create and download your favicon.
Upload your new favicon in .ico format to your website, done.