I've moved this site back to Digital Ocean, so it's now split from the billing software.
ipv6 is also enabled and working (my phone with EE used ipv6 and I've tested and it's working correctly).
As it's also a new VPS that is running, it's installed with nginx 1.15.0 which is a new release...
One of my first VPS that I set up with them. No longer needed, so I'm going to be destroying it:
14:21:42 up 608 days, 18:57, 2 users, load average: 0.04, 0.03, 0.05
Can't argue with that sort of stability for $5 a month!