If you have configured your system to use 3.3.3.3 as a DNS server:
Similar to "example.com" or "1.2.3.4," technical writers often use 3.3.3.3 as a generic IP address in tutorials to illustrate how to configure a DNS server. Unassigned Public Space:
Public WHOIS records managed by ARIN confirm that 3.3.3.3 is registered to Amazon Technologies Inc. under Autonomous System Number AS16509. dns 3.3.3.3
Another crucial, albeit less visible, use for 3.3.3.3 is in the context of . This is the backend infrastructure that website owners use to manage their domain names.
: A reverse DNS lookup sometimes resolves to psvidler.net. Public vs. Private DNS Comparison If you have configured your system to use 3
Perhaps Quad9's most defining feature is its unwavering commitment to privacy. As a , it operates under some of the strongest privacy laws in the world.
Sometimes used within corporate networks to resolve specific internal hostnames before hitting the public internet. Are you looking to create this post for a technical blog general audience on social media? KDE, OpenVPN, Wireguard: cannot import config file - Help Another crucial, albeit less visible, use for 3
| Provider | Primary IPv4 | Secondary IPv4 | Primary IPv6 | Key Features | | :--- | :--- | :--- | :--- | :--- | | | 1.1.1.1 | 1.0.0.1 | 2606:4700:4700::1111 | Extreme speed, strong privacy focus, supports DNS over HTTPS/TLS | | Google Public DNS | 8.8.8.8 | 8.8.4.4 | 2001:4860:4860::8888 | High reliability, global infrastructure, detailed query logging | | Quad9 | 9.9.9.9 | 149.112.112.112 | 2620:fe::fe | Security-focused, blocks known malicious and phishing domains | | OpenDNS (Cisco) | 208.67.222.222 | 208.67.220.220 | 2620:0:ccc::2 | Content filtering and phishing protection features |
Its privacy policy is straightforward: "Quad9 does not store client IP information to disk, nor is client IP data ever transmitted out of the POP in which it is received". This means they or any other personally identifiable information (PII). They do not create user profiles, buy or sell data, or serve ads based on your browsing behavior. Because they don't collect this data, they have nothing to hand over even if compelled by legal request. This stands in stark contrast to many other free DNS services, as well as ISPs, which may build demographic profiles or track your online activities.
The widespread confusion surrounding "DNS 3.3.3.3" stems from pattern recognition. Top-tier internet infrastructure companies intentionally acquire memorable, repeating IP sequences to offer free, easy-to-remember public DNS services. The most famous examples include: : Managed by Cloudflare 8.8.8.8 & 8.8.4.4 : Managed by Google Public DNS 9.9.9.9 : Managed by Quad9 What is DNS? | Learning Center - Cloudflare