Constellix vs Control D
Side-by-side comparison of features, pricing, ratings, and alternatives.
Constellix is a managed DNS platform, now operating as a DigiCert company, built around enterprise-grade multi-CDN management, traffic routing and DNS availability. It aims to prevent outages and optimize content delivery performance by intelligently routing traffic and monitoring uptime across a business's infrastructure. The platform includes companion tools such as Sonar for uptime monitoring and an analytics dashboard for visibility into DNS and routing performance, and is positioned for enterprise customers that need high-availability DNS alongside multi-CDN failover. Since joining DigiCert, Constellix retains its own brand while being integrated into DigiCert's broader DNS and security product lineup.
Control D is a DNS filtering and security service that blocks malware, unwanted content, and specific applications across devices at the DNS level. It runs on a claimed 100M-user threat intelligence network with a reported 99.98% malware block rate, and supports modern encrypted DNS protocols including DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC.
- Enterprise-grade multi-CDN failover reduces outage risk
- Backed by DigiCert's infrastructure and security expertise
- Includes uptime monitoring and analytics in one platform
- Established brand with a long DNS industry track record
- Broad native OS support including Linux
- Encrypted DNS protocols supported out of the box
- Transparent self-serve per-endpoint pricing for SMBs
- 14-day free trial with no credit card required
- Pricing is not published and requires contacting sales
- Aimed at enterprise customers, likely overkill for small sites
- Brand transition under DigiCert may create some product overlap questions
- Enterprise, MSP, and school pricing requires contacting sales
- Per-endpoint pricing can add up for larger device fleets
- No permanent free tier for individual home users listed on the pricing page
More alternatives & similar tools
Alternatives to Constellix
View all →Unified DNS, DHCP and IP address management for enterprise networks
Alternatives to Control D
View all →The Verdict
AI-generated from listing dataConstellix is an enterprise‑focused DNS and multi‑CDN failover platform with integrated monitoring, while Control D is a DNS‑filtering service aimed at SMBs, MSPs and schools.
Key differences
- •Primary function: Constellix provides DNS routing and multi‑CDN failover; Control D provides DNS‑level content and malware filtering.
- •Target audience: Constellix is built for large enterprises needing high‑availability DNS; Control D targets SMBs, MSPs, schools and mid‑size enterprises.
- •Pricing model: Constellix requires sales‑based pricing (no public rates); Control D offers transparent per‑endpoint subscription with a free trial.
- •Security focus: Control D emphasizes encrypted DNS protocols and SOC 2/ISO certifications; Constellix highlights DigiCert’s infrastructure reliability rather than specific compliance certifications.
Pricing & value
Control D lists subscription pricing and a free trial; Constellix requires contacting sales, no public price.
Ease of use / learning curve
Control D offers self‑serve per‑endpoint setup and native apps; Constellix is enterprise‑grade and likely more complex.
Features & depth
Constellix includes multi‑CDN routing, DNS‑level failover, uptime monitoring and analytics, beyond basic filtering.
Integrations & ecosystem
Constellix can pair with DigiCert certificate services; Control D mentions MSP multi‑tenancy but no broader ecosystem.
Scalability
Constellix is positioned for enterprise‑scale traffic and high‑availability DNS; Control D is designed for SMB device fleets.
Support & compliance
Control D lists SOC 2 and ISO certifications; Constellix provides no specific compliance details.
Security & privacy
Control D supports DNS‑over‑HTTPS/TLS/QUIC and has security certifications; Constellix focuses on uptime, not encryption.
Choose Constellix if…
Large enterprises needing DNS routing, multi‑CDN failover and integrated monitoring.
Choose Control D if…
SMBs, schools or MSPs that need DNS filtering, encrypted DNS and transparent per‑device pricing.
Common questions
How is pricing disclosed for each product?
Constellix requires contacting sales for a quote; Control D shows subscription rates per endpoint and offers a free trial.
Which product provides DNS failover for high availability?
Constellix includes DNS‑level failover and multi‑CDN routing; Control D does not offer failover, only filtering.
Do either of the solutions support encrypted DNS protocols?
Control D supports DNS‑over‑HTTPS, TLS and QUIC; Constellix’s specifications do not mention encrypted DNS support.

