Magento 2 site maintenance involves ongoing tasks to ensure the smooth functioning and optimal performance of a Magento 2-based website. It includes regular updates, security checks, and troubleshooting to keep the site secure, up-to-date, and functioning properly. Tasks include applying updates and patches, optimizing performance, monitoring security, performing backups, updating extensions and themes, and analyzing website performance. site maintenance Magento 2 is crucial to ensure a secure and efficient online shopping experience for users.