1) Security
Drupal's creators placed a strong emphasis on security from the start, and this has been methodically maintained since then by all of Drupal's specialists, as well as those who continue to work on the CMS. This is as safe as it gets for an Open Source system.
2) Scalability
Some companies need to modify and enhance their website as they develop, therefore they require scalability. The Drupal system is made up of two parts: the Core and the Modules.
- You may expand from the Core by utilizing Modules, which implies you have limitless scaling potential.
- There are a plethora of pre-existing Modules that may be added to Drupal, and many great Drupal developers will be able to develop their own modules for your site requirements.
3) Performance
Drupal works on the principle of "Geared towards user experience". The performance of the website is very important, so they have taken care of this by using technologies like HTML5/CSS3, jQuery UI which assist in giving your site a professional look, its responsive layout means that it'll work on any device.
Drupal is also the first Open Source CMS that has native integration of Varnish Cache (known as Drupal 8 Accelerated by Varnish). This will enhance the performance to another level which supports thousands of page views per second.
4) Flexibility
As a CMS, it has a lot of flexibility which means you have the ability to create custom content types and fields. A customizable framework enables you to configure Drupal exactly how you want it to work for your individual needs as well as those of the customers who use the site. You'll also be able to choose from a variety of different presentation themes.
