Norton ConnectSafe!

OpenDNS is the leading provider of security and infrastructure services that make the Internet safer through integrated Web content filtering, anti-phishing and DNS. OpenDNS services enable consumers and network administrators to secure their networks from online threats, reduce costs and enforce Internet-use policies. OpenDNS is used today by millions of users and organizations around the world.

Google Public DNS is a free, global Domain Name System (DNS) resolution service, that you can use as an alternative to your current DNS provider.

OpenNIC is an alternate network information center/alternative DNS root which lists itself as an alternative to ICANN and its registries.

Comodo Secure DNS is a domain name resolution service that resolves your DNS requests through Comodo 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.It's quick and easy to change to Comodo Secure DNS. No downloads and it's absolutely free:8.26.56.268.20.247.20

SafeDNS is a cloud-based web filtering service providing users an efficient and easy-to-use way to maintain control over web access, limit time for web surfing, to monitor and manage online activity. The SafeDNS service ensures a safer web connection for users' individual devices (desktop computers, laptops, tablets, smartphones, etc.) and entire networks (by configuring the service on a WiFi router or a DSL modem). Any home user can protect up to 3 home networks (on Free plan with limited functionality). On a paid plan users get all of advanced service features. »

FoolDNS is a DNS service to protect user privacy. It blocks advertising from services that use it to track the user without authorization.

DNSFilter is a cloud-delivered DNS based content filtering and threat protection service that protects an unlimited amount of networks without the need for any in-house hardware or appliances. Our affordable pricing model is based upon usage, allowing our service to scale to your network requirements in real time.

Free to use public DNS servers which filter unwanted advertisements and malware.

Runs as a Windows service, supports any TCP/IP device. Display a blocked page as result of any domain name matched in the keywords list. Prevent installation of file sharing/P2P clients, spyware, or other malicious software - a technique referred to as DNS sinkhole or blackhole. Save bandwidth by blocking streaming audio/video, large downloads, or questionable material. Restrict online games, IM, pornography, and illegal content. Or, choose to block everything and allow only the sites you specify - known as DNS whitelist. »

Provided free of charge, Free Recursive DNS enables end users and businesses to experience a much more reliable, faster and safer Internet experience.

Doesn't just filter advertisements, but also most known malware sites (sites known to be harmful to your computer).On top of that, enables geo restricted content such as US Netflix, Hulu, Pandora and more.Advertising, malware and tracking lists are updated daily, so you don’t have to worry about staying up to date – you’re always automatically up to date!

DNSReactor provides FREE Public DNS servers that you can use as an alternative to your local isp DNS servers. Take advantage of this FREE added layer of security NOW.

Squidblacklist.org, is the worlds leading publisher of domain blacklist data tailored specifically for web filtering applications and platforms. Multiple formats available for broad compatibility, for download in multiple different packages, compressed and plaint text archives, shalla/urbl compatible archive structure and standalone acls.