que es wordpress

What Is WordPress: The Complete Guide to the World’s Most Popular CMS

Última revisión: mayo 2026

Want to build a website without knowing how to code? WordPress is the answer used by more than 43% of all websites in the world. From personal blogs to online stores and corporate sites, WordPress lets you build almost any kind of website easily.

In this guide we explain what WordPress is, how it works, the differences between WordPress.org and WordPress.com, and why it is the first choice for beginners and web development professionals alike.

What you will learn in this guide

  • What WordPress is: The most popular CMS in the world
  • How it works: Themes, plugins and the admin dashboard
  • WordPress.org vs .com: The key differences
  • What it is for: The kinds of site you can build
  • Pros and limitations: Is WordPress right for you?

Contents

What is WordPress?

WordPress is an open source content management system (CMS) that lets you build and run websites with no programming knowledge.

Launched in 2003 as a blogging platform, WordPress has grown into the most widely used tool in the world for building every kind of site: blogs, online stores, portfolios, corporate sites, digital newspapers and much more.

WordPress in numbers

  • Market share: More than 43% of all websites in the world run on WordPress
  • Open source: Free and maintained by a global community
  • Plugins available: More than 60,000 in the official repository
  • Themes available: Thousands of free and premium designs
  • Languages: Available in more than 200 languages

Why is it so popular?

WordPress democratised web building. Before it, creating a site meant knowing HTML, CSS and programming. With WordPress, anyone can have a professional site running in hours rather than weeks.

How WordPress works

WordPress uses a modular structure that separates content, design and functionality:

The core

This is the base WordPress software. It is updated regularly with security, performance and feature improvements. Core updates are free and worth applying.

Themes

They control how your site looks: colours, fonts, layout, header, footer and so on. You can switch themes without losing your content. There are free and premium (paid) themes.

Plugins

They add extra functionality: contact forms, SEO, security, an online store, bookings, memberships… Without plugins, WordPress is a basic content manager. With them, it can do almost anything.

The admin dashboard

The control panel where you manage everything: creating pages, writing articles, installing plugins, changing the design, managing users. You reach it at yourdomain.com/wp-admin

The database

All content (text, settings, users) is stored in a MySQL database. Media files (images, PDFs) are kept in folders on the server.

WordPress.org vs WordPress.com

This is the most common confusion for beginners. They are two different things:

WordPress.org (self-hosted)

The free software you download and install on your own hosting:

  • Full control: You decide everything about your site
  • No limits: You can install any theme or plugin
  • Monetisation: You can run ads, sell products and so on
  • You need: To arrange hosting and a domain separately
  • Responsibility: You handle updates, security and backups

WordPress.com (hosted service)

A commercial service where WordPress provides the hosting:

  • Easier: No hosting or maintenance to worry about
  • Free plan: But with WordPress ads and limitations
  • Paid plans: To lift the limits and get more features
  • Less control: You cannot install plugins freely (except on the Business plan)

Which should you choose?

WordPress.org if you want full control, a professional website or an online business. WordPress.com if you want a simple personal blog with no technical hassle.

que es wordpress

What is WordPress used for?

WordPress is extremely versatile. These are the most common types of site:

Blogs

Where it started, and still excellent at it: articles, categories, tags, comments, RSS.

Corporate websites

Company sites with services, team and contact information. Professional and easy to keep updated.

Online stores (eCommerce)

With WooCommerce (a free plugin), WordPress becomes a full online store: product catalogue, basket, payments, order management.

Portfolios

For designers, photographers and artists: work galleries with striking visual layouts.

Digital newspapers and magazines

Major outlets such as TechCrunch, The New Yorker and BBC America run on WordPress.

Memberships and online courses

With the right plugins you can create private areas, subscriptions and training platforms.

Directories and classifieds

Business listings, property portals, job boards.

The advantages of WordPress

WordPress has features that set it apart from the alternatives:

Ease of use

An intuitive interface that lets you manage content without technical knowledge. The block editor (Gutenberg) makes building pages visual and simple.

Total flexibility

You can start with a simple blog and grow into a complex store without changing platform. WordPress grows with you.

Open source

You do not depend on a single company. If WordPress disappeared tomorrow, your site would keep working. And thousands of developers keep improving it.

A huge community

Whatever problem you hit, someone has hit it before. Documentation, forums, tutorials and specialists are everywhere.

SEO-friendly

WordPress is well structured for SEO. With plugins such as Yoast SEO or Rank Math, optimising your site for search engines is straightforward.

Scalability

From a personal blog to sites with millions of visits. With the right hosting, WordPress can handle any level of traffic.

The limitations of WordPress

No tool is perfect. These are the limitations worth considering:

An initial learning curve

It is easier than coding, but WordPress has a lot of options. Learning to use it well takes time, especially the self-hosted version.

It needs maintenance

WordPress, theme and plugin updates. Backups. Security. If you use WordPress.org, all of that is your responsibility. You can hand it over to a WordPress web maintenance service.

Variable performance

With too many plugins or a heavy theme, WordPress can get slow. It needs optimisation to keep good Core Web Vitals.

Security

Being so popular makes WordPress a frequent target for hackers. You need security measures: up-to-date software, security plugins, strong passwords and backups.

Dependence on plugins

Many features rely on third-party plugins. If a plugin stops being updated or has compatibility problems, it can affect your site.

Limited design without know-how

Themes have limits. For a fully custom design you need CSS knowledge or a professional.

What you need to use WordPress

WordPress is the most versatile and most widely used platform in the world for building websites. Whether it is a personal blog, a corporate site or an online shop, WordPress can adapt to your needs. At JRC Web we specialise in web design with WordPress. We build websites that are optimised for SEO, fast and easy for our clients to manage. As a web design agency in Barcelona, we develop WordPress projects of every kind: from corporate websites to online shops with WooCommerce, always with a focus on performance and search rankings. If you would like to know more about what web design is and how it can help you, we explain it here. Need a professional website built on WordPress? Get in touch and we will advise you with no obligation.

Essential WordPress plugins

To use WordPress.org you need these pieces:

A domain

Your website address (yourcompany.com). It is registered annually with a domain registrar. Cost: €10-15/year for a .com or .es.

Hosting

The server your site lives on. The main types:

  • Shared: The cheapest (€3-10/month). Enough to get started.
  • VPS: More resources and control (€20-50/month). For sites with more traffic.
  • Dedicated/Cloud: Maximum performance (€100+/month). For large projects.
  • Managed WordPress: Hosting tuned specifically for WordPress.

Recommended hosting for WordPress

Look for hosting that offers one-click WordPress installation, a free SSL certificate, specialist support, automatic backups and good speed. Popular providers in Spain: Webempresa, Raiola Networks, SiteGround, Hostinger.

Installation

Most hosts offer automatic WordPress installation. In five minutes you have a site ready to customise.

WordPress vs other platforms

WordPress lets you install plugins to add any feature you need. These are the most widely used:

SEO

  • Yoast SEO: The most popular for optimising content
  • Rank Math: A complete alternative with more free features
  • All in One SEO: Another solid, long-standing option

Security

  • Wordfence: Firewall and malware scanner
  • Sucuri: Protection and clean-up for hacked sites
  • iThemes Security: Multiple layers of protection

Performance

  • WP Rocket: Premium caching, the best for performance
  • LiteSpeed Cache: Free, and excellent if your host runs LiteSpeed
  • Smush: Image optimisation

Page builders

  • Elementor: The most popular, with a very complete free version
  • Divi: A very powerful premium builder
  • Gutenberg: WordPress’s native editor, more capable with every release

eCommerce

  • WooCommerce: The standard solution for online stores

WordPress and SEO

WordPress is not the only option. Let’s compare it with the popular alternatives:

WordPress vs Wix

  • Wix: Easier for absolute beginners, everything included
  • WordPress: More flexible, better for SEO, more scalable
  • Verdict: Wix for simple sites with no ambitions; WordPress for serious projects

WordPress vs Shopify

  • Shopify: Built for eCommerce, everything integrated
  • WordPress + WooCommerce: More flexible but takes more setting up
  • Verdict: Shopify if you only sell online; WordPress if you want a blog and a store

WordPress vs Webflow

  • Webflow: Total visual control over design, clean code
  • WordPress: More plugins, a bigger community, cheaper
  • Verdict: Webflow for designers; WordPress for everyone else

WordPress vs custom development

  • Custom: Full control, optimal performance, high cost
  • WordPress: Faster, cheaper and enough for 95% of projects

How to get started with WordPress

SEO and WordPress are an excellent combination:

WordPress’s SEO advantages

  • Clean URLs: Easily configured in the settings
  • Heading structure: Well-organised H1, H2 and H3
  • SEO plugins: Yoast and Rank Math make optimisation easy
  • Speed you can optimise: With caching and optimisation plugins
  • Mobile-friendly: Most themes are responsive
  • Schema markup: Plugins for structured data

Basic SEO setup

  1. Install an SEO plugin (Yoast or Rank Math)
  2. Set up clean URLs (Settings → Permalinks → Post name)
  3. Create your sitemap and submit it to Google Search Console
  4. Configure the robots.txt file
  5. Optimise speed with a caching plugin
  6. Make sure HTTPS is active

Frequently asked questions about WordPress

The WordPress.org software is 100% free. You do, however, need to pay for hosting (from €3/month) and a domain (around €10-15/year). Themes and plugins can also be free or paid, depending on what you choose.
No. WordPress is designed so that anyone can build and manage a website without knowing how to code. For advanced customisation it does help to know HTML, CSS or PHP, but it is not essential.
WordPress is secure as long as you keep it updated and follow good practice: updates applied promptly, security plugins, strong passwords, quality hosting and regular backups. Most hacks happen because those measures get neglected.
Yes. You can switch themes at any time without losing your content. Pages, posts and images all stay put; only the visual appearance changes. It is advisable to take a backup before any major change.
The minimum outlay is hosting (€36-120/year) plus a domain (€10-15/year). If you use premium themes or plugins, add those costs. Maintenance (updates, security, backups) is something you can handle yourself or outsource to a professional service.

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