What is ioi.dk?
ioi.dk is a Denmark-based other provider.
Is ioi.dk usable in China?
ioi.dk is basically usable in mainland China, though latency may vary by ISP and time of day; have a backup proxy ready. The provider is headquartered in Denmark and primarily serves overseas markets.
How do I sign up for ioi.dk?
Visit the ioi.dk official site to complete sign-up. Registration typically requires an email (Gmail/Outlook recommended) and a payment method. Most overseas services accept credit card / PayPal / crypto. See the "Visit Official Site" button on this page for the direct link.