A custom CMS uses bespoke coding to create the website and admin interface. As this code isn’t commonly used it can’t easily be exploited making a custom CMS much more secure than more popular CMS’ such as WordPress.
When developing a custom CMS, we develop the functionality needed. No more, no less. What this means is that the website will only load up the functionality that is needed on that page, creating a fast, sleek experience.
Many off the shelf websites need to be replaced almost on a yearly basis due to non-compliant coding conflicting with other code areas. A custom CMS can have a shelf life of 7 years+ before changes may be needed.
Ease of Use
CMS’ tend to come with a huge range of different options – which should be great, however, this can cause confusion on how to use it. A custom CMS will give the options that you actually need and use, making changes really simple.