Drupal is a Content Management System (CMS) that runs on PHP programming. The very nature of Drupal means that the core application is meant to be built upon and modified.
The benefit in using Drupal is accessing the variety of features that allows developers to add resources and features to the website. These additions can be done through Drupal modules. Just like the core installation, these modules also need web hosting to function reliably and continuously. It is essential that you choose your Drupal hosting arrangement services carefully as your site's accessibility depends on it. Apart from the original Drupal web hosting, the space and reliability available for future use is important as well.