Tags
Add specific labels which connect related Posts across the site.
Tags are lighter-weight than Categories. They work well for product names, topics, techniques or recurring subjects.
Keep Tags useful
Create a Tag because several pieces of content should be connected, not simply because a word appears in one article.
Names and URLs
Use a readable name and check the generated URL. Renaming a live Tag may change its public route, so review redirects where necessary.
On Posts
Add only Tags that improve navigation. A long list of one-off Tags usually makes the archive harder rather than easier to use.