A blog’s icon is a graphic representation of the blog’s name or topic. A common icon for a blog is a simple, colorful image of a blog post or page.
Some blogs use an icon that represents the blog’s theme, such as a sunburst for “Tech & Web Development” blogs, or a butterfly for “Health & Wellness” blogs.
The purpose of an icon is to make it easy for people to identify the blog when they’re searching for it online. It can also help people remember the topic of the blog.
When people click on an icon, they can quickly learn more about the blog and what it covers.
Some bloggers choose not to use an icon. This is perfectly acceptable, and some bloggers even prefer not to use an icon because it can be difficult to create one that looks good on all types of devices.
Ultimately, the decision about whether or not to use an icon is up to the blogger.