SEO glossary · C

CMS

What is a CMS?

A CMS (content management system) is software for creating, editing and publishing website content without writing code for every change. Editors work in an admin area, and the CMS stores the content and turns it into web pages using templates.

  • WordPress: open source and by far the most widely used, powering a large share of all websites.
  • Shopify and WooCommerce: for online stores.
  • Drupal and Joomla: open-source systems for more complex sites.
  • Webflow, Wix and Squarespace: hosted website builders.
  • Headless CMSs such as Contentful and Sanity, which deliver content to sites and apps built with other tools.

What to look for in a CMS for SEO

  • Control over titles, meta descriptions, URLs and headings
  • Clean, fast HTML and good Core Web Vitals
  • XML sitemaps, canonical tags and redirects, built in or through plugins such as Rank Math or Yoast SEO
  • Support for structured data
  • Easy management of images and their alt text
  • Regular security updates

Keep it maintained

Keep the CMS, themes and plugins up to date, remove what you don’t use, and take regular backups. Most hacked websites are running outdated software.

CMS example

A small clinic uses WordPress. The receptionist logs in, edits the opening hours in a text box and clicks Update. The CMS saves the change to the database and the template shows it on every page that lists the hours. A developer is needed only for new features, not for text changes.

How to choose a CMS

  1. List what the site must do: blog, online shop, booking, several languages.
  2. Check how easily your own staff can edit pages without help.
  3. Look at the cost of hosting, themes, plugins and updates, not only the licence.
  4. Check the SEO controls: titles, URLs, redirects, sitemaps, structured data.
  5. Test the speed of a demo site on a phone.
  6. Ask how you can export your content if you leave.

CMS mistakes

  • Choosing by looks alone and discovering later that content is hard to move.
  • Installing many plugins that slow the site and create security holes.
  • Skipping updates and backups.
  • Giving every user admin rights.

CMS FAQs

Is WordPress good for SEO?

It gives good control over the elements search engines read, but results depend on the theme, plugins and content. See website analytics and page speed.

What is a headless CMS?

A system that stores content and delivers it by API to a separate front end. It suits larger teams with developers. See e-commerce websites.

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