Linked site is down - it's a pretty well-written writeup, archived here - https://web.archive.org/web/20171204164627/https://calendar.perfplanet.com/2017/anima

Linked site is down - it's a pretty well-written writeup, archived here - https://web.archive.org/web/20171204164627/https://calendar.perfplanet.com/2017/animated-gif-without-the-gif/ https://web.archive.org/web/20171204164627/https://calendar.... EDIT: original author put this up on medium - https://medium.com/@colinbendell/evolution-of-img-gif-without-the-gif-8da25adcca15 https://medium.com/@colinbendell/evolution-of-img-gif-withou...