If I were to show you the tabs in the following pic without a description, would you recognize the websites to which they belong?
Sometimes these icons are the logo for the respective site. Sometimes, it is just something that might be fun. In either case, it is something that helps brand the site in a fashion suitable to you. These little icons are called “favicons” and they are pretty easy to put in place.
If you haven’t considered doing it, I think it would be worth the effort to create one. It is a means to brand your site. Here is a quick tutorial on how to do it.
I used a free website tool to create my favicon. You can find it here. The tool is appropriately called favicongenerator.
Prior to being asked how to create one, I had no clue what those little pics were called. Nor did I know how easy it was to create one. It took me a few minutes searching the internet to figure out what it was called (I think I started by searching for “tab icon internet”). Once I learned that it was called a favicon, it was easy to find instructions on how to create it. Now it should be just a bit easier.