What is caster.link?
caster.link is a South Korea-based Dev Tools provider.
Is caster.link usable in China?
caster.link 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 South Korea and primarily serves overseas markets.
How do I sign up for caster.link?
Visit the caster.link 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.