Quad9 is a free, recursive, anycast DNS platform that provides end-users robust security protections, high-performance, and privacy.
Best Control D Alternatives ranked by AI · updated Aug 2026
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Control D is a managed DNS service for blocking ads, trackers, malware, and selected content categories. It targets privacy-focused households and teams that need device profiles, location controls, and encrypted DNS without self-hosting.
Top 6 Control D alternatives
Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet. It offers DNS-layer...
Contact Cisco for pricing
Pi-hole is a DNS sinkhole that protects your devices from unwanted content without installing any client-side software.
AdGuard Home is a network-wide software for blocking ads and tracking. It operates as a DNS server that re-routes tracking domains to...
Hosts by Steven Black is a maintained hosts-file collection that blocks advertising, tracking, malware, and other unwanted domains. It is intended for...
Pros
- Free and open source
- Combines multiple reputable blocklists into one hosts file
- Works without installing a dedicated blocking application
Cons
- Requires manual or scripted installation compared with managed DNS services
- Hosts files provide less filtering control than Pi-hole or NextDNS
- Can cause site breakage without convenient per-domain management
ThreatDefence is a DNS-based security service designed to block phishing, malware, ransomware, and other unsafe internet destinations. It is intended for organizations...
Pros
- Blocks malicious domains before connections are established
- Can protect multiple devices through DNS configuration
- Covers threats that browser-only security tools may miss
Cons
- Public pricing and plan details are limited
- DNS filtering cannot inspect every encrypted application request
- Provides less endpoint control than a full EDR platform
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