Quad9 Application

The following page provides details on domains, networks, IPs, hosting services, and content delivery networks used by Quad9.

Description

Quad9 is a global public recursive DNS resolver that aims to protect users from malware and phishing.

Category	Cybersecurity
Web Link	Quad9 - Home Page

Application Domains

The application domains data shown here is available in our Netify Data Feeds solution. The data is accessible via our IP API as well as downloadable datasets.

Learn More »

Domains

Primary Domains

Primary Domains are owned and managed by the application vendor.

Platform Domains are often provided by hosting providers, content delivery networks, SaaS platforms and other third parties. It is important to identify these domains for DNS filters and hostname blocklists.

Network Ranges

9.9.9.0/24
68.65.126.0/23
149.112.112.0/24
149.112.149.0/24
199.249.255.0/24
and 2 more

Network Ranges
Some applications are deployed across network blocks. Only networks that are dedicated to an application are provided.

Protocol and Port Statistics

Protocol	Port
DoH	TCP 5053
DoH	TCP 443
DoT	TCP 853
HTTPS	TCP 443

Application Stats
The adjacent table summarizes the top protocols/ports detected for this application.

Quad9 Network

Some organizations deploy all or parts of an application solution through their own infrastructure instead of third party hosting providers like AWS or Google Cloud Platform. The following is a sample of active IP addresses on the Quad9 Network.

ASN Description	ASN	Route	Location	IP
Quad9	AS19281	2620:fe::/48	Global	2620:fe::11
Quad9	AS19281	2620:fe::/48	Global	2620:fe::10
Quad9	AS19281	2620:fe::/48	Global	2620:fe::fe
Quad9	AS19281	2620:fe::/48	Global	2620:fe::12
Quad9	AS19281	2620:fe::/48	Global	2620:fe::fe:9
Quad9	AS19281	2620:fe::/48	Global	2620:fe::fe:10
Quad9	AS19281	2620:fe::/48	Global	2620:fe::fe:11
Quad9	AS19281	2620:fe::/48	Global	2620:fe::9
Quad9	AS19281	2620:fe::/48	Global	2620:fe::fe:12
Quad9	AS19281	9.9.9.0/24	Global	9.9.9.9
Quad9	AS19281	9.9.9.0/24	Global	9.9.9.10
Quad9	AS19281	9.9.9.0/24	Global	9.9.9.11
Quad9	AS19281	9.9.9.0/24	Global	9.9.9.12
Quad9	AS19281	9.9.9.0/24	Global	9.9.9.13
Quad9	AS19281	149.112.112.0/24	Global	149.112.112.9
Quad9	AS19281	149.112.112.0/24	Global	149.112.112.10
Quad9	AS19281	149.112.112.0/24	Global	149.112.112.11
Quad9	AS19281	149.112.112.0/24	Global	149.112.112.12
Quad9	AS19281	149.112.112.0/24	Global	149.112.112.13
Quad9	AS19281	149.112.112.0/24	Global	149.112.112.112
Quad9	AS19281	149.112.112.0/24	Global	149.112.112.254
Quad9	AS19281	149.112.149.0/24	Global	149.112.149.112
Quad9	AS19281	149.112.149.0/24	Global	149.112.149.254

SaaS - Software-as-a-Service

Applications often use various third party platforms for providing authentication, advertising, cybersecurity, e-mail services and more. The Software-as-a-Service (SaaS) platforms used by Quad9 are summarized below.

SaaS	# of IPs
WoodyNet	6

Service	Category	Sample IP	IP Count
WoodyNet	Business	205.207.155.37	6 IPs

Hosting

Cloud hosting vendors like AWS and Microsoft Azure provide cloud-based computing and network resources to deliver applications. The hosting platforms used by Quad9 are summarized below by geographical points-of-presence (PoP). Each PoP can host many IPs to deliver an application.