If the bound resource has expired but the Anti-DDoS Pro instance has not expired, the protection function of the Anti-DDoS Pro instance for the expired resource will be affected.
For example, if you have a website hosted on a server and you have bound an Anti-DDoS Pro instance to protect it. If the domain name or IP address of the website (the bound resource) has expired due to non-renewal, but the Anti-DDoS Pro instance subscription is still valid. In this case, although the Anti-DDoS Pro instance itself can still work normally in terms of its own functionality, it can no longer effectively protect the expired website resource. New attacks may not be properly blocked or mitigated for that specific expired resource.
In such scenarios, it's crucial to renew the bound resources promptly to ensure continuous and comprehensive protection. Tencent Cloud offers flexible solutions and notifications to help manage subscriptions and renewals effectively, ensuring your services remain secure and uninterrupted.