Duolingo
Duolingo Application
Application Information
The following page provides details on domains, networks, IPs, hosting services, and content delivery networks used by Duolingo.
Description
Duolingo offers courses in a wide variety of languages, including popular ones like Spanish, French, German, and Chinese, as well as less commonly studied languages like Irish, and Swahili, and High Valyrian.
| Category | Career and Education |
| Web Link | Duolingo - Home Page |
Network Intelligence
The network data shown here is also available via the Netify Data Feed API. We provide network intelligence to help deliver better digital experiences to end users and businesses.
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.Platform Domains
 Alibaba CDN
|
{hidden}.kunlungr.com |
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 Duolingo are summarized below.
| SaaS | # of IPs |
|---|---|
Salesforce
|
5 |
| Service | Category | Sample IP | IP Count |
|---|---|---|---|
|
Salesforce
|
Advertiser | 3.215.172.219 | 5 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 Duolingo are summarized below by geographical points-of-presence (PoP). Each PoP can host many IPs to deliver an application.
| Cloud Hosts | # of IPs |
|---|---|
Amazon AWS
|
572 |
Alibaba Cloud
|
29 |
AWS Global Accelerator
|
2 |
Zenlayer
|
7 |
| Host | PoP | Location | IPs |
|---|---|---|---|
|
Zenlayer
|
Tokyo | Japan | 7 IPs |
|
AWS Global Accelerator
|
Anycast | Global | 2 IPs |
|
Amazon AWS
|
Ashburn | United States | 572 IPs |
|
Alibaba Cloud
|
Core | United States | 12 IPs |
|
Alibaba Cloud
|
Core | Sweden | 4 IPs |
|
Alibaba Cloud
|
Ashburn | United States | 2 IPs |
|
Alibaba Cloud
|
Core | Australia | 2 IPs |
|
Alibaba Cloud
|
Core | Spain | 1 IP |
|
Alibaba Cloud
|
Core | Italy | 3 IPs |
|
Alibaba Cloud
|
Core | Netherlands | 2 IPs |
|
Alibaba Cloud
|
Core | China | 2 IPs |
|
Alibaba Cloud
|
Manila | Philippines | 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.
| CDNs | # of IPs |
|---|---|
Amazon CloudFront
|
3139 |
|
Alibaba CDN
|
230 |
Fastly
|
111 |
Anycast
| CDN | Network | Location | Sample IP | IPs |
|---|---|---|---|---|
|
Fastly
|
Fastly
|
Global | 151.101.3.7 | 8 IPs |
PoP Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
|
Alibaba CDN
|
Alibaba Cloud
|
San Jose | United States | 8 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Ashburn | United States | 6 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Taipei | Taiwan | 2 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
London | United Kingdom | 8 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Ho Chi Minh City | Vietnam | 7 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Singapore | Singapore | 16 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Lagos | Nigeria | 8 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Hong Kong | Hong Kong | 8 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Manila | Philippines | 7 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Frankfurt | Germany | 8 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Moscow | Russia | 1 IP |
|
Alibaba CDN
|
Zenlayer
|
Moscow | Russia | 8 IPs |
|
Alibaba CDN
|
Zenlayer
|
Tokyo | Japan | 1 IP |
|
Alibaba CDN
|
Zenlayer
|
Sao Paulo | Brazil | 8 IPs |
|
Alibaba CDN
|
Zenlayer
|
Istanbul | Turkey | 8 IPs |
|
Fastly
|
Fastly
|
Melbourne | Australia | 2 IPs |
|
Fastly
|
Fastly
|
Fortaleza | Brazil | 2 IPs |
|
Fastly
|
Fastly
|
Dallas | United States | 3 IPs |
|
Fastly
|
Fastly
|
Santiago | Chile | 1 IP |
|
Fastly
|
Fastly
|
Rome | Italy | 2 IPs |
|
Fastly
|
Fastly
|
Dubai | United Arab Emirates | 2 IPs |
|
Fastly
|
Fastly
|
Sao Paulo | Brazil | 3 IPs |
|
Fastly
|
Fastly
|
Sofia | Bulgaria | 2 IPs |
|
Fastly
|
Fastly
|
Manila | Philippines | 2 IPs |
|
Fastly
|
Fastly
|
Kuala Lumpur | Malaysia | 1 IP |
|
Fastly
|
Fastly
|
London | United Kingdom | 4 IPs |
|
Fastly
|
Fastly
|
Miami | United States | 2 IPs |
|
Fastly
|
Fastly
|
Atlanta | United States | 5 IPs |
|
Fastly
|
Fastly
|
Seattle | United States | 2 IPs |
|
Fastly
|
Fastly
|
Sydney | Australia | 2 IPs |
|
Fastly
|
Fastly
|
Amsterdam | Netherlands | 2 IPs |
|
Fastly
|
Fastly
|
Hong Kong | Hong Kong | 2 IPs |
|
Fastly
|
Fastly
|
Stockholm | Sweden | 2 IPs |
|
Fastly
|
Fastly
|
Tokyo | Japan | 4 IPs |
|
Fastly
|
Fastly
|
Toronto | Canada | 2 IPs |
|
Fastly
|
Fastly
|
Fujairah | United Arab Emirates | 2 IPs |
|
Fastly
|
Fastly
|
Mumbai | India | 2 IPs |
|
Fastly
|
Fastly
|
Cape Town | South Africa | 2 IPs |
|
Fastly
|
Fastly
|
Helsinki | Finland | 2 IPs |
|
Fastly
|
Fastly
|
Chicago | United States | 1 IP |
|
Fastly
|
Fastly
|
Accra | Ghana | 2 IPs |
|
Fastly
|
Fastly
|
Ashburn | United States | 2 IPs |
|
Fastly
|
Fastly
|
Seoul | South Korea | 2 IPs |
|
Fastly
|
Fastly
|
San Jose | United States | 1 IP |
|
Fastly
|
Fastly
|
Madrid | Spain | 2 IPs |
|
Fastly
|
Fastly
|
Johannesburg | South Africa | 2 IPs |
|
Fastly
|
Fastly
|
Rio de Janeiro | Brazil | 2 IPs |
|
Fastly
|
Fastly
|
Oslo | Norway | 2 IPs |
|
Fastly
|
Fastly
|
Lisbon | Portugal | 2 IPs |
|
Fastly
|
Fastly
|
Chennai | India | 2 IPs |
|
Fastly
|
Fastly
|
Milan | Italy | 4 IPs |
|
Fastly
|
Fastly
|
Frankfurt | Germany | 4 IPs |
|
Fastly
|
Fastly
|
Osaka | Japan | 2 IPs |
|
Fastly
|
Fastly
|
Vienna | Austria | 2 IPs |
|
Fastly
|
Fastly
|
Dublin | Ireland | 2 IPs |
|
Fastly
|
Fastly
|
New York | United States | 3 IPs |
|
Fastly
|
Fastly
|
Copenhagen | Denmark | 2 IPs |
|
Fastly
|
Fastly
|
Singapore | Singapore | 2 IPs |
|
Fastly
|
Fastly
|
Marseille | France | 2 IPs |
|
Fastly
|
Fastly
|
Hyderabad | India | 2 IPs |
|
Fastly
|
Fastly
|
Munich | Germany | 2 IPs |
|
Fastly
|
Fastly
|
Bogota | Colombia | 1 IP |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Ashburn | United States | 43 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Copenhagen | Denmark | 50 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Hong Kong | Hong Kong | 44 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Istanbul | Turkey | 20 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Bogota | Colombia | 32 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Sao Paulo | Brazil | 90 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Tokyo | Japan | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - San Francisco | United States | 50 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Manila | Philippines | 58 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Singapore | Singapore | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Vienna | Austria | 48 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Milan | Italy | 49 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Fujairah | United Arab Emirates | 14 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Tel Aviv | Israel | 44 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Buenos Aires | Argentina | 49 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Lisbon | Portugal | 45 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Marseille | France | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Madrid | Spain | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Bucharest | Romania | 29 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Santiago de Queretaro | Mexico | 20 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Muscat | Oman | 47 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Atlanta | United States | 36 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Montreal | Canada | 49 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Dallas | United States | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Paris | France | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Chicago | United States | 59 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Santiago | Chile | 44 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Portland | United States | 3 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Rio de Janeiro | Brazil | 24 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Toronto | Canada | 44 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Taipei | Taiwan | 48 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Sydney | Australia | 73 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Rome | Italy | 44 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Zurich | Switzerland | 49 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Frankfurt | Germany | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - London | United Kingdom | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Newark | United States | 15 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Seoul | South Korea | 50 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Miami | United States | 56 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Dublin | Ireland | 47 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Los Angeles | United States | 61 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Johannesburg | South Africa | 48 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Stockholm | Sweden | 49 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Berlin | Germany | 20 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Kolkata | India | 48 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Dubai | United Arab Emirates | 36 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Perth | Australia | 14 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Helsinki | Finland | 48 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Bangkok | Thailand | 20 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Chennai | India | 28 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Houston | United States | 56 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Denver | United States | 19 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Warsaw | Poland | 47 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Manama | Bahrain | 48 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Mumbai | India | 51 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Hamburg | Germany | 20 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Boston | United States | 36 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Kuala Lumpur | Malaysia | 11 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Sofia | Bulgaria | 51 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Minneapolis | United States | 16 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Amsterdam | Netherlands | 52 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Salt Lake City | United States | 2 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Melbourne | Australia | 20 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Seattle | United States | 1 IP |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Brisbane | Australia | 25 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - New York | United States | 28 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - New Delhi | India | 10 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Budapest | Hungary | 51 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Munich | Germany | 50 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Athens | Greece | 46 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Nairobi | Kenya | 41 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Cape Town | South Africa | 37 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Oslo | Norway | 8 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Zagreb | Croatia | 44 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Prague | Czechia | 45 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Fortaleza | Brazil | 61 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Lagos | Nigeria | 40 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Hanoi | Vietnam | 14 IPs |
|
Amazon CloudFront
|
Amazon CloudFront
|
Edge - Kansas City | United States | 48 IPs |
Other Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | United States | 20 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Sweden | 4 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | South Africa | 3 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | South Korea | 16 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Vietnam | 5 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Australia | 6 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Italy | 13 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Netherlands | 6 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Spain | 13 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Singapore | 8 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Argentina | 8 IPs |
|
Alibaba CDN
|
Alibaba Cloud
|
Core Network | Peru | 8 IPs |
|
Alibaba CDN
|
Zenlayer
|
Core Network | India | 8 IPs |
|
Alibaba CDN
|
ASN AS38623 | Core Network | Cambodia | 8 IPs |
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