What is tier3.us?
tier3.us is a United States-based Dev Tools provider.
Is tier3.us usable in China?
tier3.us 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 United States and primarily serves overseas markets.
How do I sign up for tier3.us?
Visit the tier3.us 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.