Please Select a Sponsorship Plan
Tutorials provide troubleshooting paths and configuration guidance. Actual network type depends on your ISP, access method, and device capabilities; no NAT-type change is guaranteed.
Sponsor a Luckin Coffee
- 365 days of sponsorship benefits
- Unlimited NAT tests
- Ad-free across the site
- Introductory tutorials and configuration checklists for upgrading NAT3/NAT4 to NAT1
- Includes 5,000 IP Lookup API requests per month
Ad-free across the site
Once your membership is active, no Google ads are shown anywhere on the site while signed in.
Online NAT type testing
Unlimited use with priority access
VIP-exclusive tutorials
Tutorials for upgrading NAT3/NAT4 to NAT1
Dedicated technical community
NAT optimization technical discussions
Frequently Asked Questions
How is the VIP term calculated?
Both sponsor plans run for one year from activation. Existing lifetime premium members keep their lifetime benefits.
How is VIP activated after payment?
After successful payment, the system automatically activates your VIP access. You can view your VIP status and expiry date in your profile.
What do the VIP tutorials cover?
VIP tutorials cover troubleshooting paths for upgrading NAT3/NAT4 to NAT1, port forwarding, UPnP settings, and device configuration examples. They help diagnose issues; actual results depend on your ISP, access method, and device capabilities.
How do I join the NAT optimization group?
After purchasing the Plus plan, your profile displays a QR code or invitation link for the NAT optimization group.
Are refunds supported?
VIP tutorials are digital goods and cannot be refunded once activated. Please contact support if you have questions.