Norton DNS was a free internet security service created by NortonLifeLock (then part of Symantec). It worked by filtering domain name requests before they reached your device, helping block access to malicious, fraudulent, or inappropriate websites.
To understand how it worked, it helps to know what the Domain Name System (DNS) does. DNS acts like the internet’s address book, translating human-friendly website names (like example.com) into IP addresses that computers use. Norton DNS inserted a layer of protection at this stage. When you tried to visit a site, the service checked the request against its database of known threats and blocked anything considered unsafe.
Why Norton DNS was discontinued
Norton officially retired Norton DNS in 2018. The service was replaced by more advanced solutions that offer broader protection across devices and networks.
There were a few key reasons for this change:
- Evolving threats: Cybersecurity risks became more complex, going beyond simple malicious domains to include phishing, ransomware, and file-based attacks.
- Limited protection scope: DNS filtering alone could not provide full protection against modern threats.
- Shift to integrated security: Norton moved toward comprehensive security products that combine multiple layers of protection, such as antivirus, firewall, and identity protection.
After the shutdown, users were encouraged to switch to newer services like Norton VPN or full security suites such as Norton 360.
What replaced Norton DNS?
Today, Norton includes similar and more advanced features within its modern products. Instead of relying only on DNS filtering, current tools offer:
- Real-time threat detection
- Phishing and scam protection
- Secure browsing tools
- VPN for encrypted connections
Some of these solutions still use DNS-based filtering in the background, but they combine it with other technologies for stronger overall protection.
Key takeaway
Norton DNS was an early, useful tool for blocking unsafe websites at the DNS level, but it no longer exists. Norton discontinued it in 2018 and replaced it with more complete security solutions that better match today’s online threats.
If you’re looking for similar protection now, you’ll find it built into modern Norton products rather than offered as a standalone DNS service.