Is AliDNS Secure?
Independent privacy and security audit of AliDNS DNS servers, with live monitoring data.
Last updated May 11, 2026
AliDNS meets our security criteria with strong encryption support, DNSSEC validation, and no NXDOMAIN hijacking.
Security Audit Results
| Check | Result | Details |
|---|---|---|
| DNSSEC Validation | No | Does not validate DNSSEC. Vulnerable to DNS cache poisoning attacks. |
| NXDOMAIN Hijacking | No | Returns proper NXDOMAIN responses for non-existent domains. |
| DNS-over-TLS (DoT) | Supported | Encrypted DNS available on port 853. Prevents ISP snooping on DNS queries. |
| DNS-over-HTTPS (DoH) | Supported | HTTPS-based encrypted DNS available. Works through firewalls and is supported by most browsers. |
| Logging Policy | Logs retained per Chinese law | |
| Reliability | 96% | Based on continuous monitoring from our probe network. |
AliDNS DNS Addresses
| Type | IP Address | |
|---|---|---|
| Primary | 223.5.5.5 |
|
| Secondary | 223.6.6.6 |
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Run Privacy Check on 223.5.5.5How AliDNS Compares
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Frequently Asked Questions
Is AliDNS safe to use?
AliDNS passes our security audit with DNSSEC validation, no NXDOMAIN hijacking, and encrypted DNS support. It is safe for everyday use.
Does AliDNS log DNS queries?
AliDNS logging policy: Logs retained per Chinese law. Always review the provider's current privacy policy for the latest details.
Does AliDNS support encrypted DNS?
AliDNS supports both DNS-over-TLS (DoT) and DNS-over-HTTPS (DoH), providing full encryption for your DNS queries.
How reliable is AliDNS?
AliDNS (223.5.5.5) has a reliability score of 96% based on our continuous monitoring. This is excellent uptime.
What are the DNS addresses for AliDNS?
Primary: 223.5.5.5, Secondary: 223.6.6.6. Configure both for redundancy.