Success
You're looking at wg.ioioi.link, the public endpoint of a WireGuard VPN gateway.
This address is normally used by WireGuard clients to establish a secure tunnel into the IOIOI Home Network.
Since you opened it in a web browser, the server is displaying this page instead of handling VPN traffic.
Seeing this page means DNS resolution, routing, and HTTPS access to the gateway are working correctly.
If you intended to connect to the VPN, launch your WireGuard client and use your configured tunnel profile.