Tumblr Application

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

Description

Post anything (from anywhere!), customize everything, and find and follow what you love. Create your own Tumblr blog today.

Category	Arts and Entertainment
Web Link	Tumblr - 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.

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Domains

Primary Domains

tumblr.com

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.

Platform Domains

Zendesk

{hidden}.zendesk.com

and 1 more

Core Networks

Applications are sometimes deployed on partner networks, parent company networks, or regional hosting providers. The following is a sample of Tumblr IP addresses deployed on this type of network.

Network	PoP	Category	Location	IP
Automattic	Core Network	Business	United States	66.6.44.4
Automattic	Core Network	Business	United States	74.114.154.15
Automattic	Core Network	Business	United States	74.114.154.17
Automattic	Core Network	Business	United States	74.114.154.18
Automattic	Core Network	Business	United States	74.114.154.19
and 5 more

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 Tumblr are summarized below.

SaaS	# of IPs
Zendesk	2

Service	Category	Sample IP	IP Count
Zendesk	Business	104.16.51.111	2 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 Tumblr are summarized below by geographical points-of-presence (PoP). Each PoP can host many IPs to deliver an application.

Cloud Hosts	# of IPs
WordPress	8

Host	PoP	Location	IPs
WordPress	Anycast	Global	7 IPs
WordPress	Core	United States	1 IP

Content Delivery Networks - CDNs

In order to get information to end users more quickly, many applications are distributed from multiple geographical points-of-presence (PoPs) using Content Delivery Networks (CDNs). Each PoP can host many IPs to deliver an application. A sample IP is provided.

Take special note of CDNs that use Anycast technology. Anycast makes it possible to route a single IP address to a variety of different geographic locations. In other words, one global Anycast IP is hosted in multiple geographic locations.