Stitch Hosting is a serverless hosting service offered by MongoDB, which allows developers to host static assets and dynamic content in a single platform. The author of the text, Andrew Morgan, successfully ported an existing website to Stitch Hosting, replacing PHP backend code with frontend JavaScript and storing static assets on Stitch. The process involved enabling hosting through the Stitch UI, uploading static files, and creating a Stitch Function to send form data to Twilio for text message notifications. Additionally, the author used Stitch QueryAnywhere to safely store user-submitted data in MongoDB. The Stitch Hosting service provides a streamlined experience for developers, allowing them to focus on building their applications without worrying about infrastructure management.