The jepsen.io server is literally something I hacked together in a few weekends. I wouldn't really point to it as an exemplar of high quality production-facing engineering. :)
That said, it does push 50,000 reqs/sec on my local box, did just fine on an AWS m3.medium, then fell over today at 5 reqs/sec on a heroku "pro" dyno, so... this is something I'll have to address.
You should switch over to using Hugo and generating static html for most of your site. Deploying it to Firebase CDN or Netlify should cost you a few dollars every month.
