At some point next year I’ll be moving my mttmccb.net over to GitHub pages, Squarespace is currently lacking the performance I need.
I had a look at how this site performs and I was pleasantly surprised there weren’t any major issues. I did however take the time to optimize all the images.
Chris Hallahan goes into what he did to achieve the highest score he could.
I could look into asynchronously loading my CSS and doing a bit of work to inline critical CSS. Alternatively I might look at CloudFlare.
However this site is already pretty snappy, I’ve avoided large images and static files.