My SaaS landing page (https://healthchecks.io) doesn't do things by itself but it contains screenshots, integration logos, a little bit of JS. It was just over the 512KB threshold, I ran the PNG files through oxipng and got it to qualify :-)
You’re responsible for healthchecks.io? I found and started using it a few months ago to monitor some home backup tasks & a couple other simple jobs that I don’t care about unless they stop.
Thank you for the wonderful service & documentation. I wasn’t looking forward to setting up monitoring but your service actually made it a pleasure!
https://gtmetrix.com/reports/healthchecks.io/qHMaqFXb/