The new server is actually live already (since 5 minute back). If nothing unexpected happens, it will stay in the live-system.
I did run your name with the new server, seems to work, though it takes ~40 seconds. Cloudflare will time-out after 60 seconds. If it should happen that it doesn't work when you try, wait another 1-2 minutes and try again. But not more. It could be that it has completed in the background and cached the result, the cached result only exists for 300 seconds/5 minutes though.