SEO glossary · T

Tags

What are Tags?

On websites, tags are keywords attached to posts or products to group related content, for example “local SEO” or “Google Ads” on a blog. Each tag usually gets its own archive page listing everything with that tag. In HTML, “tag” also means the markup around an element, such as the title tag or an H1 tag.

Tags vs categories

In WordPress and most CMSs, categories are the main, broad sections of a site, and each post usually belongs to one of them. Tags are optional, more specific labels, and a post can have several. Categories give structure; tags connect related posts across categories.

Tags and SEO

Tag pages often do more harm than good for SEO:

  • Many tags with only one or two posts create thin, near-duplicate archive pages.
  • Similar tags, such as “SEO tips” and “SEO tip”, compete with each other and with your real pages.

Use a small, planned set of tags, each with enough posts to make its archive page useful, or set tag archives to noindex. Merge or remove tags that are rarely used.

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