The JAMstack, a methodology of developing web applications using static site generators, server-side rendering, and APIs, offers numerous benefits over traditional bulky server-dependent software like WordPress, Drupal, and Heroku. By migrating to the JAMstack on Netlify, developers can significantly reduce full download times, improve page load speed, enhance security with HTTPS, leverage HTTP2, optimize DNS lookup time, minimize HTTPS handshake time, and ensure valid SSL certificates. The gradual migration process allows developers to spread the risk of switching, enjoy faster site loading, simpler maintenance, and seamless feature additions. Netlify's proxying feature enables a phased approach to migrating data and content, making it an ideal solution for developers transitioning from antiquated infrastructure.