Corrective maintenance is the best way to correct bugs, errors and dysfunctions on a site, and aims to repair them as efficiently as possible. In short, corrective maintenance occurs after the damage has been done. An issue is detected, the technical team is alerted and corrective action is taken.
Preventive maintenance is another important type of website maintenance. As its name suggests, it aims to prevent future problems and malfunctions by carrying out regular checks and keeping the site up to date.
The website version itself, the programming languages used, and the plug-ins are updated regularly to avoid obsolescence, which can lead to security breaches and other inconveniences.
Evolutionary maintenance is when improvements, new features and optimizations are added to a website or web application, to enhance the user experience or improve management on the administrator side.
Depending on what you decide to add or improve, it can take more or less time to implement.