Public DNS resolver · Canadian Internet Registration Authority (CIRA)
CIRA Canadian Shield DNS servers
CIRA Canadian Shield (run by Canadian Internet Registration Authority (CIRA)) answers on 149.112.121.10 and 149.112.122.10, with DNS over HTTPS at https://private.canadianshield.cira.ca/dns-query. In our 2026-09-24 test it did not validate DNSSEC and sent no client subnet.
- Addresses
- 12
- Variants
- 3
- Measured
- 2026-09-24
- Primary IPv4
- 149.112.121.10
- All IPv4
- 149.112.121.10, 149.112.122.10, 149.112.121.20, 149.112.122.20, 149.112.121.30, 149.112.122.30
- All IPv6
- 2620:10A:80BB::10, 2620:10A:80BC::10, 2620:10A:80BB::20, 2620:10A:80BC::20, 2620:10A:80BB::30, 2620:10A:80BC::30
- DNS over HTTPS
- https://private.canadianshield.cira.ca/dns-query, https://protected.canadianshield.cira.ca/dns-query, https://family.canadianshield.cira.ca/dns-query
- DNS over TLS
- private.canadianshield.cira.ca, protected.canadianshield.cira.ca, family.canadianshield.cira.ca
- Service variants
- 3 (Canadian Shield Private; Canadian Shield Protected; Canadian Shield Family)
- DNSSEC in our test
- Does not validate
- Client subnet (ECS)
- None sent
- Protocols
- DNS (53), DoT, DoH
- Jurisdiction (stated)
- As a national not-for-profit, CIRA will never sell your personal data or use it to show you ads.
CIRA Canadian Shield DNS addresses by variant
Set the IPv4 or IPv6 addresses as your DNS servers, or use an encrypted endpoint where one is listed.
| Variant | Filtering (operator description) | IPv4 | IPv6 | Encrypted |
|---|---|---|---|---|
| Canadian Shield Private | Not specified by the operator | 149.112.121.10149.112.122.10 | 2620:10A:80BB::102620:10A:80BC::10 | DoH https://private.canadianshield.cira.ca/dns-queryDoT private.canadianshield.cira.ca |
| Canadian Shield Protected | Malware, phishing, botnets and online scams | 149.112.121.20149.112.122.20 | 2620:10A:80BB::202620:10A:80BC::20 | DoH https://protected.canadianshield.cira.ca/dns-queryDoT protected.canadianshield.cira.ca |
| Canadian Shield Family | Everything in Protected, plus adult content | 149.112.121.30149.112.122.30 | 2620:10A:80BB::302620:10A:80BC::30 | DoH https://family.canadianshield.cira.ca/dns-queryDoT family.canadianshield.cira.ca |
What we observed
Measured 2026-09-24 from one vantage point, three rounds per address, majority result. Anycast resolvers can behave differently from other networks.
- DNSSEC validation
- Does not validate Returned addresses for dnssec-failed.org, rhybar.cz and badsig.go.dnscheck.tools, which a validating resolver would refuse.
- Client subnet (ECS)
- No client subnet reached the authoritative server from any address we probed.
- Plain DNS and NXDOMAIN
- 6/6 documented IPv4 addresses answered on port 53. Random non-existent names came back as NXDOMAIN, so errors are not rewritten into ads or search pages.
| Protocol | Endpoint | Our test query |
|---|---|---|
| DoH | https://private.canadianshield.cira.ca/dns-query | Answered |
| DoH | https://protected.canadianshield.cira.ca/dns-query | Answered |
| DoH | https://family.canadianshield.cira.ca/dns-query | Answered |
| DoT | private.canadianshield.cira.ca | Answered |
| DoT | protected.canadianshield.cira.ca | Answered |
| DoT | family.canadianshield.cira.ca | Answered |
Which networks carry it
The announcing network comes from RIPEstat routing data for each documented address. The query network is where the resolver sent its own lookups during our probe, which a DNS leak test reports.
| ASN | Holder | Role |
|---|---|---|
| AS40568 | CIRADNS3 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet | Announces the service addresses |
| AS5645 | TEKSAVVY - TekSavvy Solutions, Inc. | Queried from, in our probe |
| AS55195 | CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet | Queried from, in our probe |
Operator statements
Quoted from the operator's pages and checked word for word. We have not audited these practices.
“As a national not-for-profit, CIRA will never sell your personal data or use it to show you ads.”
Confirm your device is using CIRA Canadian Shield
Changing a DNS setting does not guarantee your lookups reach that resolver: a VPN, a browser's own secure DNS or a proxy can send them elsewhere. Our DNS leak test shows which resolvers actually received your queries.
# Which address did the resolver query from?
dig +short whoami.akamai.net @149.112.121.10
# Does it pass your subnet on (ECS)?
dig +short TXT o-o.myaddr.l.google.com @149.112.121.10
# Does it validate DNSSEC? SERVFAIL means yes
dig dnssec-failed.org @149.112.121.10Behind a proxy
With an HTTP proxy, or a client set to socks5h://, the proxy side resolves hostnames, so your own resolver setting does not apply to that traffic. With socks5:// in curl or Python requests, your device resolves names first. The SOCKS5 vs SOCKS5h guide shows how to check which one you have.
CIRA Canadian Shield questions
- What are CIRA Canadian Shield's DNS server addresses?
- Canadian Shield Private: 149.112.121.10, 149.112.122.10, 2620:10A:80BB::10, 2620:10A:80BC::10. Canadian Shield Protected: 149.112.121.20, 149.112.122.20, 2620:10A:80BB::20, 2620:10A:80BC::20. Canadian Shield Family: 149.112.121.30, 149.112.122.30, 2620:10A:80BB::30, 2620:10A:80BC::30.
- Does CIRA Canadian Shield validate DNSSEC?
- Not in our 2026-09-24 test: it returned addresses for all three deliberately mis-signed domains.
- Does CIRA Canadian Shield support DNS over HTTPS or DNS over TLS?
- DoH: https://private.canadianshield.cira.ca/dns-query, https://protected.canadianshield.cira.ca/dns-query, https://family.canadianshield.cira.ca/dns-query. DoT: private.canadianshield.cira.ca, protected.canadianshield.cira.ca, family.canadianshield.cira.ca. 6 of 6 answered our test query on 2026-09-24.
- Does CIRA Canadian Shield send my IP subnet to other servers (ECS)?
- We observed no client subnet on any address we probed.
- How can I check that I am using CIRA Canadian Shield?
- Run a DNS leak test and compare the network it reports with the one CIRA Canadian Shield queried from in our probe (AS5645, AS55195). On the command line, dig +short whoami.akamai.net @149.112.121.10 returns the address the resolver used to query Akamai.
Sources
Documentation checked 2026-09-24. Measured 2026-09-24. Registry reviewed 2026-09-24.
Addresses and endpoints come from each operator's documentation; behaviour is what we measured from one location on 2026-09-24. Speed, uptime and how well a filter blocks what it promises were not tested.