No. 29 of 65 ·Internet Filtering Software

CIRA Anycast DNS

Web · Windows · Mac · Linux · Android · iPhone · API

Freedom report

Two barsScore 5.3

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely6 of 6 device platforms
DocumentedPlans, terms and facts published

CIRA Anycast DNS is ranked #29 of 65 in internet filtering software on Freedom251. It runs on Android, API, iOS, Linux, macOS, Web, Windows. There is no free plan.

CIRA Anycast DNS plans and pricing

All plans

CIRA Anycast DNS Not published Order Form sets zone, DNS resource record and monthly query limits; extra charges may apply if limits are exceeded cira.ca · 5 Oct 2026

Compared on internet filtering software

DNSSEC signing: Yes
Secondary DNS: Yes
API access: Yes

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The record

Service type: CIRA describes Anycast DNS as secondary DNS infrastructure for organizations.
DDoS resilience: The service uses international nodes to absorb DDoS attacks that originate offshore.
Query routing: Anycast DNS routes DNS queries to the closest nameserver to reduce latency.
Network reach: CIRA says its global DNS servers peer with more than 5,000 networks.
Availability: CIRA advertises a 100% uptime service level agreement for DNS resolution.
DNS security: The service supports DNSSEC and signed zone transfers using TSIG.
IPv6: CIRA Anycast DNS supports IPv6 DNS resolution.
Management: Users can provision, monitor and manage DNS through a web management console.
API and automation: CIRA lists REST API integration and automated provisioning of new DNS records with its notify listener.
Monitoring and support: CIRA says its networking and DNS experts monitor the service 24 hours a day and provides 24/7 technical support.
Reporting: The service offers hourly, daily and monthly DNS reports by zone, and automated alerts for zone transfer problems.
Security certification: CIRA states that it is ISO 27001 certified.
Limits and overages: The order form sets maximum zones, DNS resource records and monthly DNS queries, and CIRA reserves the right to charge extra when a customer exceeds those limits.
Intended customers: CIRA says the service is trusted by enterprises, large public organizations, ISPs and educational institutions.

Where it ranks on Freedom251

Best Internet Filtering Software in 2026#29 of 65

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Sources

cira.ca/en/cybersecurity/anycast-dns/· checked 5 Oct 2026
cira.ca/uploads/2025/09/cira-anycast-dns_EN_22.· checked 5 Oct 2026
cira.ca/en/anycast-dns-tc/· checked 5 Oct 2026