is a domain name resolution service that resolves your DNS requests through our worldwide network of redundant DNS servers. This can provide a much faster and more reliable Internet browsing experience than using the DNS servers provided by your ISP and does not require any hardware or software installation.
Yesterday Announcement

As promised, we have now activated malware domain filtering feature to our COMODO SecureDNS service.

What does this mean?

This means while browsing the internet, if you are about to browse a known malware site, SecureDNS will inform you before proceeding.
http://imgur.com/i8m3z.png

http://imgur.com/XOQCT.jpg

http://imgur.com/LYMaj.jpg



You can manually enable or disable Comodo Secure DNS service in your Windows Vista computer by modifying the DNS settings accessible through Control Panel > Network and Internet settings.
To enable the Comodo Secure DNS service, modify the DNS server IP address settings to Comodo Secure DNS server IP addresses. The IP address are:
Preferred DNS : 156.154.70.22

Alternate DNS : 156.154.71.22
Important Note: If you have chosen to install CIS in a language other than English then the DNS Server addresses to be entered are:
Preferred DNS : 156.154.70.25

Alternate DNS : 156.154.71.25