A Lottie is a JSON-based animation file format that enables designers to ship animations on any platform as easily as shipping static assets. They are small files that work on any device and can scale up or down without pixelation.
SVG graphics can be animated using animation elements. A lot of very impressive effects can be created, especially ones involving morphing and transforming shapes. The sky’s the limit.
SVG
A Guide to SVG Animations (SMIL)
Knowledge
Some of the Basic Websites & Technical SEO Checklists