How Categories & Tags Work

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What are Tags?

Tags are used to provide specific details about your posts and also link related posts on your blog. This is why posts typically have quite a few tags to them (in comparison to categories). Think of tags like a book’s index – an extended list of more specific topics which the book covers. If a topic is in the index, it is mentioned in more than one part of the book; and adding or removing a topic from the index does not change the structure of a book.


So let’s go back to the example of a health blog. Possible tags to feature are fitness, body composition, nutrients, etc. You want to keep the names short and easily identifiable as well.

Remember that tags whilst helpful, are entirely optional. You should only include them if you are certain that they will add value to your site. Here are a few rules to keep in mind:

  • Try not to use more than five tags in each post. Remember: you want to make it clear and easy for your visitors to find what they are looking for
  • Don’t create a tag that can only be applied to one post
  • You shouldn’t repeat tags too often for different categories, as this may make things more complicated
  • Try not to capitalize your tags, as it is better to use lowercase
  • Tags are flat, which means that you can’t create a hierarchical structure with sub-tags

Categories and tags are quite straightforward to use once you understand the difference between them and their individual value. They are there to improve your site’s usability (categories more so than tags) and are thus a vital component of SEO. So choose your categories wisely and always link your decision back to your end user.

Hopefully you now have a better understanding of categories, tags and how to use them. For those that want to know even more about the usage of categories and tags: there’s an advanced user guide available at

Please share your thoughts on the subject. How do you organize your content? Do you have any tips you’d like to share with your fellow WordPress users?

Did you know that with All in One SEO Pack Pro, you can control SEO for categories and tags?

Arnaud, a foodie from Bruges, Belgium, is the editor for the Semper Plugins blog. He also manages the translation teams for All in One SEO Pack (over 58 languages!).

15 comments on “How Categories & Tags Work
  1. Dmitriy says:

    Hi, Arnaud! Thanks for useful post. I have one question: should I NOINDEX tags and categories?

    • Hi Dmitriy, we recommend that you do not set NOINDEX for category and tag archives. These archives are useful and valuable to SEO if you have a blog and use Posts, Categories and Tags on your site.

  2. Patrick says:

    Hi Arnaud,

    Should I be using the same anchor text for my internal links as the terms for my tags? I’m not quite clear how the tags work or influence SEO for my website.

    • Hi Patrick,

      Anchor tags on links should match the term you’re using for the destination page. So, for example, if you are linking to your Contact Us page then the anchor tag for links to that page should be “Contact me at 1-234-567-8910” or something else relevant to the Contact Us page.

    • Arnaud Broes says:

      Patrick, tags should be about the subject of your text so that you can link relevant articles with one another.
      For example, two articles about “WordPress posts” and “WordPress pages” could be tagged with WordPress because they are both about the same general subject.
      This is only a very simple example though.

  3. Mobeen says:

    Hi there, great and helpful information. I did not use tags before. I thought tags created duplicate content but now I see they are very helpful. Thanks.

  4. Ikha says:

    Thanks for your great post Arnaud. Before reading this, I used NOINDEX for category in my blog.

    • Arnaud Broes says:

      Hi Ikha
      Never use the NOINDEX option unless you don’t want your pages to rank in search engines (for a specific reason).

  5. Lewis says:

    The way I explain the difference between tags and categories to people is that categories are for categorizing things – like types of animal (so you might have a category for dogs, another for cats, another for fish, etc). Tags are for tagging posts, so you might have a tag for grouping posts that talk about animals running away, or feeding time… Something that’s not organising your site, but something that would group posts for someone interested in that subject.

    In many ways, categories and tags are the same, and you can consider them to be two, extra, different menu structures that users (and google) can use to navigate your website.

    PS: Thanks very much for the best SEO plugin for WordPress! Astounding that WP still doesn’t have the option to add meta tags out of the box :s

    • Arnaud Broes says:

      Well the idea behind WordPress is that you can add any functionality that you like and that the basic installation of WordPress only provides the core files, so in that way it makes sense.
      What I miss in your article is that tags are used to link relevant content to each other. I personally do not perceive tags as another menu structure, but more of a linking method for articles that support each other.

  6. Emenike Emmanuel says:

    Hello Broes,

    Thanks for sharing this. It’s really helpful. Categories and tags are great ways of making a post rank well on search engine.

  7. Ubongeh says:

    Am still confused on the use of tags, please can you illustrate how a post can be tagged? Thank you

    • You would use tags to pick out certain key words you want visitors to find related content by.

      For example, if you’re writing about movies you would have categories for different genres of movies (Comedy, Horror, Action, etc). But you could use tags to pick out features such as the director or lead actor. This would enable visitors to click on the tag and see all films by that director or starring that lead actor.

  8. ctc says:

    thanks for the information, it petrified me as a beginner. I will continue to learn 🙂

  9. Brett Bumeter says:

    Slightly tangential, if there’s a better article on this, please share a link…

    Is it possible to get pageviews from posts under a category or tag to track Google Analytics. A competitor has a plugin with a function that does this. Not seeing something similar in AISEO.

    More specifically with a permalink structure (8 year old site, not going to change it) the site looks like

    The category slug is not in there!

    I believe google analytics can show me the number of pageviews that go directly to the category page, but not the page views of all articles within a category.

    How can I get from here to there? Can AIOSEO free or premium help with this?

    PS far too long since I got up to Raleigh to say hello! so

    Hello!!! 😉

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