This server has resets, I don't know the exact time but it changes.
Eventually there will be a reset.
Hosting a server without reseting, the Minecraft world size can reach 1000gb! <- hard work | So for most server's there is resets once a while.
If you want a server that doesn't have resets look at 2b2t. The server is around 10 years old with a world size of around (probable more now) 1000 GB! But if you want a server to build on, forget about 2b2t cause it is a big world of raids. (And Otis not a cracked server)