Craft CMS is a content management system for building bespoke websites.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Mailchimp is a marketing automation platform and email marketing service.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.
Sprig is a free plugin for Craft CMS that allows you to create reactive components from Twig templates or PHP classes.