Drupal is the best content management system for websites that stands out especially when it comes to sites with a lot of content, and has a competitive advantages over other CMS. Further, it's an open-source CMS and economical to implement, easy to maintain and secure to use.
Additionally, Drupal has more values defined if we consider below points:
Timely security updates:
Drupal has the large security team and prevents malicious data to enter in the web. Offering a strong security patches on regular basis, make it a popular choice among government agencies, large associations, nonprofits and many Fortune 500 companies. Drupal’s security team is dedicated to identifying and analysing potential risks in both Drupal core and contributed modules. Each contributed module undergoes strict review by the relevant team before it goes public to safeguard the website from exploits.
Performance & Scalability:
As Drupal is being known for a secure CMS, it has a good performance system too so that the site is agile and loads pages fast. Drupal is designed to grow exponentially, the website can extend from one to a hundred pages without changing anything. This scalability extends to website traffic as well. This can handle sudden spikes in traffic better than most CMSs.
Content & functional Flexibility:
Drupal loads a large number of web pages and the site continues to perform well if the content types and fields are properly configured. Regarding functionality, Drupal's modular system makes it relatively quick to add new functions by installing new modules that are available on Drupal official website. This saves time and costs for the customer because it implies using existing functionality in the community and not doing development as it usually takes longer and is more expensive, suppose we want to add a survey functionality to the site, it can be done by only activating a module instead of having to program that functionality written by manual way.
Multiple Users & Roles Management:
If there is a team of people who will work on the site, we can assign them roles with different permissions. Drupal allows each person to have a user created with different roles and permissions for managing the web content.
Symphony Template/UI Engine:
The latest Drupal versions use a fast symphony based theme system for templates that can be bought or a custom built from scratch (as per the requirement). Template is to separate the structure and the content from the visual part, giving freedom that you need to change the design, you can do it while keeping all the content that is already loaded. Even same type content can have the different designs to present content with this great flexibility.
Supportive Community:
Although, Drupal is an open-source CMS it means anyone is free to offer thoughts, ideas, advice and public documentation. Its community is highly active, approachable and is steadily growing in the number of users. For every new Drupal release, the community contributes its time and expertise in reviewing, testing and incorporating feedback to deliver the best possible experience.
Multilingual Support:
Drupal is the CMS that supports more than 100 languages at once, its automated language translation lets businesses reach a diverse users with localized content.
SEO-friendly Nature:
Drupal is a highly preferred CMS when it comes to SEO aspect, its automated modules for URL customisation handle very easy way for all the pages.
Content Management Feature:
Drupal allows us to create/edit pages very simple and quick way, we are able to have full control of the content of the website always. There should be very less technical knowledge to manage the content for editing texts, images, videos etc. you can do it directly whenever you want without directly depending on a web developer.
Sufficient Themes & Modules:
Drupal provides us sufficient contributed free themes to save our time to manage UI part and also, like themes there are a lot of modules available on its official website to extend the required functionality. We write custom code in this row only when any needed theme or module is not available to take in use. Drupal has around 40,000 modules and plugins to enhance the website’s functionality. It also offers around 2500 themes that allow users to change the look and feel of their website.
Customizability:
Drupal is more than 90% customizable and to do further, the custom modules in Drupal give a developer the flexibility to create new features and/or tweak existing features to incorporate a business unique requirements.
Responsive/Mobile Friendly:
Now a days, mostly people uses mobile/tabs to use for their work as a responsive design allows for seamless content viewing across various devices. Approximately, 54% of users now using smartphones, a mobile accessibility is more important than ever now.
WYSIWYG Editor:
A much appreciated feature that allows content creator/editor to sneak a peek at how the text and images they have entered into the text editor will look before pushing the content.
So, Drupal is often the best choice for complex, heavy content and high traffic websites, as well as those with large resource libraries and databases. This is extremely powerful, flexible, functional and secure. In other words, Drupal is more suited to large and complex sites.