Most modern "GIF URLs" are actually videos. If you change your file to MP4, you can host it on or Vimeo and embed it with autoplay & loop. This results in a 90% smaller file size.
If you want others to find and reuse your GIF, use a GIF-specific platform. how to convert gif to url
For a purely automated conversion without creating an account: Most modern "GIF URLs" are actually videos