Wagtail (Django) vs WordPress: When does a project need a CMS ready to scale?

Your website needs a content management system. Someone on the team needs to be able to publish pages, upload images, and edit text. So far, nothing new.

The automatic answer is usually WordPress. It's what everyone knows, what most agencies offer, and what appears first in any search. It makes sense: WordPress has been around for two decades and powers 43% of the world's websites, according to W3Techs.

But "what's most used" isn't always "what's best." As a project grows—more content, more traffic, more integrations, more security requirements—WordPress's limitations begin to show. And that's where Wagtail comes in.

Wagtail is a CMS built on Django, the Python framework. It's used by organizations like Google, NASA, and the UK's National Health Service (NHS). Our own website is built with Wagtail. It's not the most well-known option, but for certain types of projects, it's the most robust.

Let's see when each one makes sense.

What is each thing?

WordPress

WordPress was launched in 2003 as a blogging platform and has evolved into a general-purpose CMS. Its strength lies in its accessibility: you can have a functional website without writing a single line of code, simply by choosing a theme and adding plugins.

The ecosystem is enormous. There are over 59,000 plugins available and thousands of themes, both free and paid. This allows you to solve almost any need—forms, SEO, e-commerce, bookings, forums—simply by installing a plugin.

WordPress is written in PHP and uses MySQL as its database. It can be installed on virtually any hosting provider, including the most affordable ones. For a very high percentage of web projects, this is sufficient.

Wagtail

Wagtail was created in 2014 within the digital agency Torchbox and released as an open-source project that same year. It is built on Django, one of the most robust web frameworks available, written in Python.

Unlike WordPress, Wagtail doesn't come with a pre-built website. It's a CMS for developers: it gives you an excellent admin panel, a highly flexible content modeling system, and the tools to build exactly what you need. But it does require a technical team to set it up and develop it.

It's not a product you install and use. It's a piece within a development project.

The administration panel

Let's start with what the non-technical user sees, because in the end, they are the ones who will be working with the CMS on a daily basis.

The WordPress dashboard is familiar to everyone. It's been around for a while, but it works. You can create posts, upload images, manage menus, and modify the website's appearance without too much trouble. However, the experience degrades when you install many plugins: each one adds its own menu section, its own logic, and sometimes its own visual style. In installations with 20 or 30 active plugins, the dashboard can become confusing.

Wagtail has one of the best admin panels on the market. It's clean, modern, and designed with content editors in mind. Page management is done through a hierarchical tree that reflects the site's structure, and each content type has specific fields defined by the development team. There are no generic menus or options that don't apply to your situation. What you see is exactly what you need.

For writers and editors, Wagtail is usually more comfortable than WordPress once they get used to it, precisely because it is noise-free.

Performance and scalability

This is where the differences become most evident.

WordPress works well for small and medium-sized websites. A blog, a 20-page corporate website, a shop with a small catalog: all of this runs smoothly. But as the site grows, the reliance on plugins starts to take its toll.

Each plugin adds database queries, loads additional scripts, and increases the attack surface. It's common for a WordPress website with a lot of content and many plugins to require aggressive caching, a CDN, and constant optimizations to maintain acceptable load times.

Wagtail, being built on Django, inherits an architecture designed for performance from the ground up. Django was created in a media environment—the Lawrence Journal-World newspaper—where handling traffic spikes was a requirement, not a bonus.

Django's ORM allows precise control of database queries, and the caching system is native and granular.

In practice, a well-configured Wagtail project doesn't need external plugins to perform well under high traffic. Scalability isn't something you add later; it's built into the architecture.

Security

WordPress has a structural security problem. Not because of the core itself—which is reasonably well-maintained—but because of its plugin ecosystem. According to reports from Patchstack and Wordfence, nearly 8,000 new vulnerabilities were discovered in the WordPress ecosystem in 2024, and 92% of successful security breaches originated from plugins or themes, not the core.

The model is simple: anyone can publish a plugin in the official repository. Some are actively maintained, others are abandoned without notice. According to data from the official WordPress repository, in December 2025 alone, more than 150 plugins were removed due to unpatched security issues or developer inactivity. If your website depends on one of those plugins, you have a problem.

Wagtail benefits from Django's security, which includes built-in protection against SQL injection, XSS, CSRF, and clickjacking. There isn't an open repository of plugins with thousands of unverified contributors. Integrations are built using custom code or well-established and maintained Python packages.

This does not mean that a Wagtail site is invulnerable —none are—, but the attack surface is significantly smaller and more controllable.

Flexibility in content modeling

One of the points where Wagtail differs most from WordPress is in how you define the content structure.

WordPress has a content model based on "posts" and "pages," which you can extend with custom fields using plugins like ACF (Advanced Custom Fields). It works, but it's a band-aid solution to a structure that wasn't designed for it. As content types multiply and the relationships between them become more complex, the system becomes fragile and difficult to maintain.

In Wagtail, content modeling is done directly in Python code. You define your page types as classes, with the fields you need, the relationships that make sense, and the validation rules that apply. This gives you complete control over the data structure, and that structure is versioned in the repository along with the rest of the code.

For a blog or a simple website, the difference is irrelevant. For a site with dozens of content types, cross-tabulations, and specific business logic, it's the difference between something that works and something held together with tape.

The ecosystem

WordPress's greatest advantage is also its greatest risk. 59,000 plugins mean you can find a quick fix for almost anything. But they also mean a constant reliance on third parties who can abandon their project at any time, introduce incompatibilities in an update, or simply fail to follow security best practices.

Wagtail doesn't have a comparable plugin ecosystem in terms of volume. What it does have is the entire Python and Django ecosystem at its disposal. Need to send transactional emails, process payments, connect to an external API, generate PDFs, manage asynchronous task queues... all of that is accomplished with mature and well-documented Python libraries, not with CMS-specific plugins.

The difference in approach is important: WordPress gives you pre-built solutions that may or may not fit your needs. Wagtail gives you the tools to build exactly what you need, at the cost of needing someone who knows how to use them.

Cost and equipment

Let's talk about money, because that's what often tips the scales.

A WordPress website can cost a company between €1,000 and €10,000 in its most typical version: a premium theme, a few plugins, and some customization. You don't need a development team; someone who knows how to navigate the dashboard is enough. For many companies, this is all they need.

A Wagtail project requires a development team. There are no themes to install or plugins to activate: everything is built in-house. The initial cost is higher, and you need people with Python and Django skills. But the long-term maintenance cost tends to be lower because you don't depend on third-party plugin updates, security is more controlled, and technical debt accumulates more slowly.

The question is not "which one costs less?" but "which one costs less over the next three years, considering what my project needs?"

When will WordPress arrive? When will Wagtail launch?

WordPress is the right choice when you need a website quickly, your budget is limited, you don't have your own technical team, and the project isn't going to grow much in complexity. Blogs, standard corporate websites, portfolios, small online stores: WordPress handles these cases well and without complications.

Wagtail is the right choice when your project needs to scale, your content structure is complex, security is critical, you need to integrate with other systems, or you want a custom digital product that evolves with your business. Content platforms, public sector websites, portals with specific business logic, high-traffic sites: this is Wagtail's natural habitat.

There's also an intermediate scenario that's more common than you might think: projects that started with WordPress because it was the fastest option, but as they grew, they encountered limitations that forced them to rethink their technology. Migrating from WordPress to another platform when the site already has hundreds of pages and dozens of integrations is expensive and painful. Choosing the right platform from the start saves more than it costs.

Beyond the tool

WordPress isn't bad. It's an excellent tool that has democratized website creation like no other technology. But it's not designed for everything, and using it where it doesn't fit creates more problems than it solves.

Wagtail isn't for everyone. It requires technical investment and isn't suitable for a personal blog or a simple corporate website. But when a project is ambitious and needs to grow without technology being a hindrance, it's one of the most robust options available.

The decision shouldn't be "what is everyone using?" but rather "what will my project need in two years?" The answer to that question usually makes things quite clear.