Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Quad9
Quad9 is a global public recursive DNS resolver that aims to protect users from malware and phishing. Quad9 is operated by the Quad9 Foundation, a Swiss public-benefit, not-for-profit foundation with the purpose of improving the privacy and cybersecurity of Internet users, headquartered in Zürich.
Operates 2 networks present at 1 internet exchange with a restrictive peering policy.
Countries served by Quad9
Every country where this organization has IPv4 allocations, ranked by IPs held.
Largest CIDR ranges
| CIDR | IPs | PTR Density | ASN | Country | State | City |
|---|---|---|---|---|---|---|
| 68.65.126.0/23 | 512 |
0.0%
|
AS398891 | US | — | — |
| 9.9.9.0/24 | 256 |
1.6%
|
AS19281 | US | — | — |
| 147.72.242.0/24 | 256 |
1.6%
|
AS19281 | US | — | — |
| 149.112.112.0/24 | 256 |
0.8%
|
AS19281 | US | — | — |
| 149.112.149.0/24 | 256 |
1.6%
|
AS19281 | US | — | — |
| 199.249.255.0/24 | 256 |
0.4%
|
AS19281 | US | — | — |
Frequently Asked Questions
How many IP addresses does Quad9 own?
Quad9 controls 1.8K IPv4 addresses distributed across 6 CIDR ranges. The organization is registered in United States.
What ASNs does Quad9 operate?
Quad9 operates 2 Autonomous Systems. Each ASN represents an independently routed network that Quad9 manages for internet traffic delivery.
What type of organization is Quad9?
Quad9 is categorized as unknown. This classification is based on the organization's primary use of its IP address allocations.
