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Drupal vs WordPress vs Joomla: What is the best CMS to power a digital business?

Posted on 25 March 2020 by John Mooren and Dan Cowan

Say you want to set up an online store, an e-learning offering, or that you have a lot of people in your organisation or network and want to offer them access to a portal. Perhaps, you have an existing digital business and are thinking of upgrading your platform? The burning question is: what technology platform should you use?

Image displaying the logos of WordPress, Drupal and Joomla
To be more precise, what is the best CMS (Content Management System) when building a website, to power the digital platform for your business? There are a few options out there, but the main ones to choose from are Drupal, WordPress or Joomla. So how to decide which one to rely on for the plumbing of your business for the next few years?

In this article, we take a deep dive into all three platforms comparing them using the following ten criteria to see which one comes out on top:

  1. What are the similarities between Drupal, WordPress and Joomla?
  2. What functionality do they offer?
  3. How good are they for SEO?
  4. What options are there to customise them?
  5. How easy are they to use?
  6. How secure are they?
  7. Are they well supported?
  8. How easily can they be updated?
  9. What are the cost differences?
  10. What are their market shares?

Then we will have a look at some example sites based on each platform.

To introduce them, here is some basic information on each of the CMSs
Introduction to WordPress card
Introduction to Joomla card
Introduction to Drupal card

 
 

1. What are the similarities between Drupal, WordPress and Joomla?

All three CMSs were founded between 2000 and 2005. They’ve been around for almost 20 years and are relatively mature pieces of software.

They have a few core elements in common.

Firstly, they are all open source: the software is available for people to use under a free licence and it is developed collaboratively. This means that they are cost-effective – no licence fees are due, and the large communities working with and surrounding these CMS platforms ensure that:

  • new concepts and capabilities are introduced more quickly,
  • issues that arise with the software can be dealt with more quickly, and
  • reliability and security are vetted more broadly.

Secondly, they are all based on PHP as a programming language and use MySQL as a database infrastructure.

All three have developed a large community and ecosystem around themselves, which we will discuss and compare later.

Finally, they all use themes and templates to style your site or application and offer plugins/modules/extensions to complement the features you can achieve in the core platforms.

 
 

2. What functionality do they offer?

To compare the functionality of Drupal, WordPress or Joomla, we looked at the following four factors:

  1. How to display different types of assets when publishing content?
  2. How to manage user access?
  3. How to create multilingual sites and applications?
  4. How to handle the data?

Content types

WordPress has Posts and Pages out of the box with a reasonably simple content model for these content types. WordPress is extended using the ACF plugin and bespoke developments can offer highly specialised types to be developed to fit your specific needs.

Joomla has a basic content type (Article) with the expectation that this is always extended using its components and modules. The system is much more adaptable out of the box but does require immediate development support.

Drupal ships with a richer collection of built-in content types and allows for customisation, but like Joomla, only with development support.

Access controls

Drupal and Joomla are considered as having better access control structures out of the box. WordPress user roles are configured, and new user capabilities can be added.

Multilingual sites

All three systems offer multilingual capabilities. WordPress and Drupal require plugins or modules, while Joomla provides support out of the box. The WordPress implementations are not as clean as the Joomla and Drupal versions. All three systems require the theme developers to have done their jobs with translation in mind!

Data handling

Joomla and Drupal have much more complex database structures. This allows them to offer a better internal data architecture which may perform better than WordPress with its single posts table. However, performance can still be quickly impacted by shoddy quality development work.

In all three cases, the site’s public performance depends critically on page caching strategies. All three frameworks support a variety of caching techniques which, if used correctly, make the frameworks respond well. When not used appropriately, any one of these frameworks can perform poorly.

 
 

3. How good are they for SEO?

Key SEO factors, like page load times (through caching techniques or Content Delivery Networks) or schema.org implementations, can be managed in all three CMSs.

WordPress offers excellent SEO functionality through the market-leading Yoast plugin. Extensions like EFSEO for Joomla provide similar features, yet don’t seem to be able to match Yoast’s powerful functionality and usability.

Sites built on Drupal and Joomla can also enjoy SEO success. However, even Drupal developers acknowledge that more damage can be done by poor execution on the part of the Drupal expert – a risk that is considerably lower when using WordPress.

 
 

4. Flexibility, extensibility, ability to customise

Whatever features are available out of the box, all three frameworks are flexible and support extension through third party plugins/modules. To achieve what you will need for your digital venture, you are highly likely to require third party extensions on any of the CMS platforms.

In general, WordPress is easier to use and extend for non-technical users, with theme and plugin installation and configuration not often requiring technical support.

Both Drupal and Joomla are arguably more powerful as frameworks, but this additional power makes them more complex to set up and configure properly. It’s much more likely that you will need the support of a capable developer to create and maintain sites in Drupal and Joomla.

Having said that, there is nothing you can do on any one of these platforms that you cannot also achieve in the others.

As extensions become more advanced, WordPress’s simplicity can become a challenge in itself. More of the “heavy lifting” may need to happen in a third-party plugin, and if this is not implemented to high standards the website’s security and performance may be adversely affected.

Number of plugins/modules/extensions available
WordPress: in excess of 55,000 WordPress plugins
Drupal: in excess of 44,000 Drupal modules
Joomla: in excess of 7,700 Joomla extensions

As you can see in the table above, all three platforms have a healthy number of third-party plugins available that allow you to extend the functionality of the basic platform without much effort. Most of these extensions are available for free, but some providers charge a fee for the use of their modules. Most providers also provide support on the extensions they build and release as well as upgrades to either enhance the plugin, deal with security concerns or adapt to changes of the core CMS platform.

 
 

5. How easy are they to use?

WordPress is generally thought to be a more accessible website builder for content editors, which is why it is often requested as a platform.

When a CMS is “written by developers for developers”, it is very likely to have usability issues for its end users – the content editors. Especially when compared to WordPress, Drupal’s content creation process is often described as “anything but simple”.

 
 

6. How secure are they?

All three CMS platforms have had security vulnerabilities. The strength (from a security perspective) of the CMS is determined by how the organisation dealt with these issues.

Joomla has the best reputation for out of the box security and is trusted by many governments and academic institutes for their websites.

The security challenge extends beyond the application layer, so the long-term security of a system depends on the hosting and ongoing maintenance processes.

No matter how well tested and developed the core frameworks are, the majority of security incidents derive from poorly written or maintained plugin/module code provided by the wider community and from slow upgrade cycles. With a broader community and a higher number of free plugins in the market WordPress may suffer more from this.

However, this weakness is offset by the ease of upgrading a WordPress based site (see the section on upgradeability below). The 2019 Website Threat Research Report by GoDaddy’s Sucuri shows that 49% of the WordPress sites that were infected in 2019 were on an “outdated” version. This is against 77% of Drupal sites and no less than 90% of Joomla sites. The report blames this on the more complicated life cycles of the latter two resulting in a more difficult update process.

Many articles available online point to Sucuri reports from previous years to highlight that WordPress sites are the most vulnerable to outside attacks. However, the latest Sucuri report (for 2019) clarifies that 94.2% of their user base run WordPress sites, explaining the large share of infections of WordPress sites that were identified by Sucuri.

The fact that the White House moved its website from Drupal to WordPress just over two years ago should be a strong indication that the ability to create a secure site is at least as good using WordPress as it is using Drupal.

Our view is that with WordPress, you are more reliant on your developers to keep everything, including all third-party plugins, secure. With Joomla and Drupal you are more reliant on staying up to date with the latest version, which can become a significant investment.

 
 

7. Are they well supported?

All three CMS platforms have a large following. Fans of the three CMSs are scattered all over the world, meeting regularly in regional groups across many countries. They generate lots of discussion on forums, both among users of the CMSs and developers who contribute or write plugins etc.

As they are all open-source platforms, they all benefit from continuous contributions to the core products. As you can see in the table below, the contributors number in the hundreds for each version, for Drupal even in the thousands. The thousands of plugins/modules/extensions on offer (see the section on extensibility above) show the additional contributions made by third-party developers that make these platforms so powerful.

Contributors to the core code
WordPress: 573 contributors worked on WP 5.3
Drupal: 1,228 companies / 3,290 community members worked on Drupal 8
Joomla: 400 developer volunteers

Online popularity

Besides considering the software itself it is interesting to analyse the online activity surrounding these platforms. To get a measure of their relative popularity, we have plotted the size of activity on Google, LinkedIn and Twitter below. The circles represent the relative size of activity in each of the platforms.

Graph showing relative interest CMSs on Google, LonkedIn and Twitter
Data as of end of January 2020

WordPress dwarfs the other two. A Google search for “WordPress” returned 2.34 billion results, whereas “drupal” returned 61.2 million and “Joomla” generated 62% more at 99 million. The LinkedIn groups with the largest followings around these CMSs have 78,900 (WordPress), 38,500 (Drupal – half of WordPress) and 17,100 (Joomla – half of Drupal) followers, respectively. Finally, the Twitter accounts show a similar picture with 631,000 followers for @WordPress, 72,000 for @drupal and 62,000 for @joomla.

 
 

8. How easy are they to update?

All three platforms release regular security and feature updates.

Working with Drupal and Joomla code updates can be tricky, and incompatibilities can often emerge. As previously noted, these CMSs generally require more bespoke code and developer involvement and the ease of upgrading depends on the quality of that code. This can prove very difficult in practice. In Drupal’s case, significant version upgrades (e.g. from 7 to 8) involve not only an update of the database (with all the content) but also a rewrite of most of the code, which can be costly.

WordPress upgrades in both the core and in plugins are generally much easier to handle. It’s even possible, although not recommended, to let WordPress auto-update its core and plugins. It is often possible to keep WordPress up to date without developer input. However, in cases where many third-party plugins are involved, incompatibilities may arise that require expert help.

The recommended approach in all three cases is to handle each upgrade individually on a staging server and to test compatibility issues as the enhancements are rolled out.

There have been occasions when Drupal and Joomla have made major releases which are not backwards compatible. This leaves some installations unable to upgrade without significant developer effort. Eventually, these older platforms stop getting security upgrades and become a substantial risk to their users’ businesses.

WordPress 5 (released in December 2018) contains a new editor framework known as Guttenburg. The new editor framework introduces essential changes to the core operation of the platform and may break some installations.

 
 

9. What are the cost differences?

WordPress, Drupal and Joomla are all open-source, and the basic platforms are available for free. However, unless you are looking for a simple blog or digital shop window, you are likely to need expert help in implementing and maintaining your organisation’s requirements using any of these CMSs.

Some of the costs associated with getting your site up and running are independent of the CMS you choose. They are investments like domain name registration, hosting and the design of the user interface. The main differences between the CMSs arise from the initial creation and the maintenance afterwards.

Cost of the implementation

For the creation of your digital business, you are likely to require expert help, either by recruiting experienced developers or by engaging an agency. There are three questions you need to ask yourself when comparing WordPress, Drupal and Joomla:

  1. How much adaptation of the core platform is required?
  2. How many extensions will you have to pay for?
  3. How much does an expert cost to build it all?

How much adaptation of the core platform is required?
It is our experience that you can achieve more with the core WordPress platform more quickly than with Joomla or Drupal (which are comparable). Developers having expertise with both WordPress and Drupal agree that it takes 2 to 3 times as long to develop a Drupal site compared to achieving the same result in WordPress. Therefore, all else being equal, on this factor WordPress is cheaper to implement as there will be less bespoke work to be done.

How many extensions will you have to pay for?
The extensions to the core platform that you will need are very much dependent on your specific business requirements. This means that it is hard to predict which CMS will cost more in this regard – it will require a case-by-case analysis.

How much does an expert cost to build it all?
Even though WordPress, Drupal and Joomla all have great supporting communities, the supply of skilled WordPress developers is significantly higher than the quantity of experienced Drupal or Joomla developers. This will have a direct impact on the cost of the expert help you will need.

The graph below highlights the difference in salaries offered for developers of the three platforms. It shows the range of annual base salaries offered on open vacancies in the US for WordPress, Drupal and Joomla on recruitment platform ZipRecruiter.  Anecdotal evidence from Glassdoor for open vacancies in the UK broadly supports this view, while showing a lack of demand for Joomla developers as only one vacancy was open at the time of checking. 

Salary ranges of WordPress Drupal Joomla developers
Data from each platform at the end of January 2020

Mainly because of this salary discrepancy, the cost per development hour will be lower for a WordPress based platform, compared to those running on Drupal or Joomla.

Maintenance

Getting your digital business up and running can be a significant investment. However, you are likely to have follow up requirements for which you will need expert support.

Once your visitors start using your site or application, you will find that some of the functionality can be improved. When the business takes off, you will want to scale it and ensure the digital presence can handle the expected growth. And there will be updates for security reasons or to stay in line with improvements in the underlying CMS. Whatever the reason, you will continue to rely on external (or internal) experts to ensure your digital business keeps flourishing.

The cost of continued maintenance will be, in part, dependent on the cost of an expert. This works in WordPress’s favour again.

The other major factor to affect the cost of maintenance is the upgrade mechanism used by the CMS providers. All three provide regular upgrades of their platform. WordPress tends to provide gradual enhancements that offer backward compatibility and don’t create the need for significant investments to move the current state of your application to the new version of the CMS.

As highlighted in the Sucuri report (see the section on Security above), the other two will regularly release a new version that requires a significant investment for your application to work on it. This, of course, increases the cost of maintenance.

 
 

10. What are their market shares?

Pie chart showing market share of all sites with known CMS
Data from w3techs.com at the end of January 2020

Considering all the websites on the internet powered by a known CMS, WordPress stands out with a market share of 62.4%. It almost dominates the website CMS space in the way that Google dominates online search. The second-largest share is held by Joomla, at 4.5%, while Drupal follows closely at 2.9%.

Many people consider this statistic to be skewed as they feel WordPress mainly powers simple sites and blogs. However, as you can see below, if you only consider the websites with the most traffic on the internet, WordPress remains the dominant CMS – even if the dominance is less pronounced. It is noteworthy that Drupal’s market share increases significantly with traffic increases, whereas Joomla’s share drops rapidly.

Pie chart showing market share of top 100,000 and 10,000 sites with known CMS
Data from trends.builtwith.com at the end of January 2020

Another way to gauge the relative interest in these CMS platforms is to see how often their name is searched for in Google. We can draw the data for the past five years to see the development of their respective search activity using Google Trend.

Google Trends comparison WordPress Drupal Joomla
Google Trends data from January 2015 – January 2020

As you can see from the graph, the search interest in each of them has at least halved over the past five years. However, throughout this period, the interest in WordPress has been 7-12 times the interest in either Drupal or Joomla.

 
 

Example websites for WordPress, Drupal and Joomla

Here is a list of some of the better known websites running the respective CMSs.

WordPress
The White House
The Sun
Tech Crunch
The official site of Sweden
Groupe Renault
The Walt Disney Company
Katy Perry
Time
Capgemini
Angry Birds
more

Drupal
Tesla
Whole Foods Market
Zoho
Nasa
more

Joomla
Roger Federer
IT Wire
Swiss Federal Audit Office
Kompan
more

 
 

Which CMS is right for me? WordPress, Drupal or Joomla?

If you are a blogger or you only need a simple digital shop front, the choice of CMS is easy: WordPress is the way to go. It is easy to use, free and has a huge community constantly updating the functionality and security of the platform.

If you need something slightly more complex or advanced there are some considerations for you to make. It all depends on your needs compared to the pros and cons or strengths and weaknesses of the different CMS platforms.

Which CMS is best for complex platforms?

When it comes to functionality, the requirements for most businesses can be achieved on any of the three CMSs. Over the past 15 years, they have all grown to cover the needs of any digital venture, whether e-commerce, e-learning, or membership platform. Some things may take more effort to achieve on one, but they are likely to be off-set by other functionality that is easier to produce.

We have highlighted below which CMS, in our opinion, is the “winner” on the different factors we have considered. You will need to decide how important each of these factors are for your venture and how much of an advantage the respective CMS will give you on each of them.

Which is the best CMS: WordPress, Drupal or Joomla?

WordPress vs Drupal vs Joomla comparison table
Who is the “winner” on each criterion?

 
 

Migrating from Drupal or Joomla to WordPress

There are two parts to consider when migrating a website or application from one platform to another: content (or data) and structure.

In general, the templates embodying the structure and the look and feel of a site are not straightforward to migrate. Themes, templates and components will need modifying or rewriting to work in the new context. Thankfully in practice, migration is usually an opportunity to revisit and refresh the design so reworking the HTML and CSS is not necessarily a problem.

Migrating content can be a more complicated matter. Each of the platforms has its own data architecture, which needs to be mapped on a field by field basis between the systems. As the sites become more complex, this mapping task becomes more difficult. In general, technical support is required for such an operation and with the right expertise, a lot of this can be automated.

There are several plugins/modules which claim to be able to migrate from one platform to another automatically, but these can only work when the initial installations are relatively vanilla.

If you’re considering migrating your Drupal or Joomla site to WordPress and would like some expert advice get in touch.

 
 

About the authors

John Mooren and Dan Cowan are both co-founders and directors at BrightMinded Ltd, a bespoke software provider based in Brighton, UK. In the past nine years, we have worked with many clients around the world in many different industries, providing them with bespoke software applications. We have experience with all three CMS platforms considered in this article. However, we should disclose that the majority of the work we have done and still do is based on WordPress.

It is not the case that we have tried to write an article that puts WordPress in a positive light because we work most with that platform. Instead, we have chosen WordPress more often than the others as a solution for our clients as we feel it is the best option to achieve those clients’ requirements in the best possible manner (including value for money).

We have tried to list all arguments for and against any of the CMSs in the most objective way, even though we realise this article will reflect our opinion.