You can configure the referer, IP address, user-agent blacklists or whitelists, and URL authentication to identify and filter visitors. These features allow you to regulate access control for Dynamic Route for CDN (DCDN) and improve the security of DCDN.

You can use the following features to implement access control.
Feature Description
Configure referer-based hotlink protection Allows you to configure a referer blacklist or whitelist to authenticate and authorize requests so that you can control access to DCDN resources.
Configure URL authentication Allows you to configure URL signing to prevent unauthorized downloads of resources on origin servers. URL signing provides more enhanced protection than referer-based hotlink protection.
Configure an IP address blacklist or whitelist Allows you to configure an IP blacklist or whitelist to authenticate and authorize requests so that you can control access to DCDN resources.
Configure a User-Agent blacklist or whitelist Allows you to configure a User-Agent blacklist or whitelist to identify and filter visitors.