SSL CERTIFICATE

You may not have heard of SSL certificate, but in fact, this technology has been hidden in our daily network activities and plays an important role for network security. The so-called SSL certificate refers to the Secure Sockets Layer. The “s” in “https://” that we usually see when we type in a web address means that the web page is protected by SSL technology, in short, it is an encrypted and authenticated web page. If you pay close attention to the URL bar, you will see a locked pattern on the left side, which is the SSL certificate mark.

Please go to sslcert.hkdnr.hk/logon to manage the order purchased before 31 May 2025.