Cost / License
- Free
- Proprietary
Platforms
- Online
Cisco Umbrella is described as '(formerly OpenDNS) provides the first line of defense against threats on the internet wherever users go' and is a very popular DNS Resolver in the network & admin category. There are more than 50 alternatives to Cisco Umbrella, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and iPhone apps. The best Cisco Umbrella alternative is NextDNS, which is both free and Open Source. Other great sites and apps similar to Cisco Umbrella are 1.1.1.1, Cloudflare, AdGuard DNS and DNS4EU.


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.

Point is a fully managed DNS solution trusted by thousands of users and responsible for more than 220 000 domains worldwide.
Authoritative, dynamic and geo-DNS, traffic balancing, CDN offload, domain services and DNS firewall. With full DNSSEC support.


SmartViper is a web mining company dedicated to analyze web pages. They let anyone use their DNS servers for free. They log personal information with their website but it’s not clear what they log with their DNS service. They don’t share that information with third parties.
HaGeZi DNS offers free, non-commercial public DNS resolvers designed and operated by a private individual for the European community. It provides robust DNS-based blocking of ads, trackers, scam, phishing, fake, and malware domains - helping users achieve greater privacy and...
Encrypted DNS adds an extra security layer on top of regular security measures in network browsing. It will utilize knowledge of known cyber threats by CERT-EE and block at the level of DNS the access to threats.




Dyknow’s classroom management software keeps students on task. defeat the distractions in their classrooms caused by student devices.
free-ddns provides dynamic DNS service as alternative as the most common services like no-ip or dyndns

This is not a DNS filter. This is just another DNS server. As far as I can tell it does not provide any additional security whatsoever.