Duolingo
Duolingo Application
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 |
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.
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
|
|
{hidden}.alikunlun.com | and 4 more |
|
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{hidden}.github.io |
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 solutions are often deployed on multiple IPs across different geographical points-of-presence. In addition, it is common for these IP addresses to be shared by multiple applications.
| Service | Category | Sample IP | IP Count |
|---|---|---|---|
|
|
Advertiser | 54.85.182.178 | 1 IP |
|
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Technology | 185.199.108.153 | 8 IPs |
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Shopping | 23.227.38.74 | 2 IPs |
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Business | 34.206.178.239 | 3 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 |
|---|---|
|
|
626 |
|
|
12 |
|
|
186 |
| Host | PoP | Location | IPs |
|---|---|---|---|
|
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Core | United States | 7 IPs |
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Core | China | 2 IPs |
|
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Milan | Italy | 3 IPs |
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Columbus | United States | 1 IP |
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Ashburn | United States | 586 IPs |
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Core | United States | 37 IPs |
|
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Anycast | Global | 2 IPs |
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Singapore | Singapore | 11 IPs |
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Sydney | Australia | 6 IPs |
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Dublin | Ireland | 9 IPs |
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Gaevle | Sweden | 21 IPs |
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San Francisco | United States | 1 IP |
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Chicago | United States | 14 IPs |
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Osaka | Japan | 6 IPs |
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Melbourne | Australia | 5 IPs |
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Seoul | South Korea | 11 IPs |
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Chennai | India | 4 IPs |
|
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Paris | France | 20 IPs |
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Richmond | United States | 15 IPs |
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Richmond | United States | 10 IPs |
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San Francisco | United States | 14 IPs |
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Tokyo | Japan | 7 IPs |
|
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Sao Paulo | Brazil | 4 IPs |
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Pune | India | 4 IPs |
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San Antonio | United States | 14 IPs |
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Amsterdam | Netherlands | 9 IPs |
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Des Moines | 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.
| CDNs | # of IPs |
|---|---|
|
|
487 |
|
|
6074 |
|
|
802 |
|
|
129 |
PoP Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
|
|
|
Manila | Philippines | 8 IPs |
|
|
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Moscow | Russia | 16 IPs |
|
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Johannesburg | South Africa | 16 IPs |
|
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Bangkok | Thailand | 8 IPs |
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San Jose | United States | 8 IPs |
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Muscat | Oman | 11 IPs |
|
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Seoul | South Korea | 20 IPs |
|
|
|
Taipei | Taiwan | 8 IPs |
|
|
|
Melbourne | Australia | 8 IPs |
|
|
|
Sydney | Australia | 8 IPs |
|
|
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Stockholm | Sweden | 8 IPs |
|
|
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Madrid | Spain | 16 IPs |
|
|
|
Milan | Italy | 28 IPs |
|
|
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Amsterdam | Netherlands | 8 IPs |
|
|
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Paris | France | 16 IPs |
|
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London | United Kingdom | 16 IPs |
|
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Lagos | Nigeria | 8 IPs |
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Singapore | Singapore | 57 IPs |
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Hong Kong | Hong Kong | 40 IPs |
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Frankfurt | Germany | 24 IPs |
|
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Cyberjaya | Malaysia | 8 IPs |
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Cairo | Egypt | 8 IPs |
|
|
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Jakarta | Indonesia | 8 IPs |
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Ho Chi Minh City | Vietnam | 8 IPs |
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Istanbul | Turkey | 8 IPs |
|
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Buenos Aires | Argentina | 16 IPs |
|
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Bogota | Colombia | 8 IPs |
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Lima | Peru | 8 IPs |
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Shanghai | China | 91 IPs |
|
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Ulaanbaatar | Mongolia | 8 IPs |
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Dubai | United Arab Emirates | 8 IPs |
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Moscow | Russia | 8 IPs |
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Tokyo | Japan | 8 IPs |
|
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Sao Paulo | Brazil | 8 IPs |
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Rio de Janeiro | Brazil | 8 IPs |
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Mumbai | India | 8 IPs |
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New Delhi | India | 8 IPs |
|
|
|
Sofia | Bulgaria | 2 IPs |
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|
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Fortaleza | Brazil | 2 IPs |
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Accra | Ghana | 2 IPs |
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Manila | Philippines | 2 IPs |
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Singapore | Singapore | 4 IPs |
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Seoul | South Korea | 2 IPs |
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Milan | Italy | 4 IPs |
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Dubai | United Arab Emirates | 2 IPs |
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|
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Chicago | United States | 4 IPs |
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|
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Lisbon | Portugal | 2 IPs |
|
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Los Angeles | United States | 2 IPs |
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Dallas | United States | 5 IPs |
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Frankfurt | Germany | 4 IPs |
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|
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Miami | United States | 2 IPs |
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Toronto | Canada | 6 IPs |
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Brussels | Belgium | 2 IPs |
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Atlanta | United States | 4 IPs |
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Seattle | United States | 1 IP |
|
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Amsterdam | Netherlands | 2 IPs |
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New York | United States | 2 IPs |
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London | United Kingdom | 2 IPs |
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Hong Kong | Hong Kong | 2 IPs |
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Melbourne | Australia | 2 IPs |
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Sao Paulo | Brazil | 4 IPs |
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Tokyo | Japan | 5 IPs |
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Madrid | Spain | 4 IPs |
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Montreal | Canada | 11 IPs |
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Fujairah | United Arab Emirates | 2 IPs |
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Chennai | India | 2 IPs |
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Johannesburg | South Africa | 2 IPs |
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Rio de Janeiro | Brazil | 2 IPs |
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Houston | United States | 2 IPs |
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Vancouver | Canada | 2 IPs |
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Buenos Aires | Argentina | 2 IPs |
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Santiago | Chile | 2 IPs |
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Cape Town | South Africa | 2 IPs |
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Oslo | Norway | 1 IP |
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Helsinki | Finland | 1 IP |
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Vienna | Austria | 2 IPs |
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New Delhi | India | 1 IP |
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Dublin | Ireland | 2 IPs |
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Copenhagen | Denmark | 2 IPs |
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Manchester | United Kingdom | 2 IPs |
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Marseille | France | 2 IPs |
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Kolkata | India | 2 IPs |
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Sydney | Australia | 2 IPs |
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San Jose | United States | 1 IP |
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Rotterdam | Netherlands | 1 IP |
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Mumbai | United States | 1 IP |
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Lima | Peru | 1 IP |
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Brisbane | United States | 1 IP |
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Denver | United States | 1 IP |
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Stockholm | Sweden | 1 IP |
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Rome | Italy | 1 IP |
|
|
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Vienna | Austria | 12 IPs |
|
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Athens | Greece | 6 IPs |
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Fujairah | United Arab Emirates | 6 IPs |
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Sao Paulo | Brazil | 6 IPs |
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Hamburg | Germany | 4 IPs |
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Curitiba | Brazil | 2 IPs |
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Cape Town | South Africa | 2 IPs |
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Dusseldorf | Germany | 4 IPs |
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Madrid | Spain | 8 IPs |
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Paris | France | 18 IPs |
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Mombasa | Kenya | 4 IPs |
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Brussels | Belgium | 4 IPs |
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Frankfurt | Germany | 18 IPs |
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Lisbon | Portugal | 8 IPs |
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Dublin | Ireland | 4 IPs |
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Stockholm | Sweden | 10 IPs |
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Istanbul | Turkey | 6 IPs |
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Johannesburg | South Africa | 4 IPs |
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Sofia | Bulgaria | 4 IPs |
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Marseille | France | 4 IPs |
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Bogota | Colombia | 7 IPs |
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Porto Alegre | Brazil | 4 IPs |
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Glattbrugg | Switzerland | 4 IPs |
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Prague | Czechia | 6 IPs |
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Buenos Aires | Argentina | 8 IPs |
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Sydney | Australia | 4 IPs |
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Bengaluru | India | 6 IPs |
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Fortaleza | Brazil | 6 IPs |
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Hong Kong | Hong Kong | 15 IPs |
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Singapore | Singapore | 18 IPs |
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New York | United States | 3 IPs |
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Oslo | Norway | 4 IPs |
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Melbourne | Australia | 9 IPs |
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Seoul | South Korea | 8 IPs |
|
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Miami | United States | 24 IPs |
|
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London | United Kingdom | 10 IPs |
|
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Ashburn | United States | 12 IPs |
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Secaucus | United States | 4 IPs |
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Jakarta | Indonesia | 4 IPs |
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Kuala Lumpur | Malaysia | 2 IPs |
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McAllen | United States | 4 IPs |
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New Delhi | India | 8 IPs |
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Chicago | United States | 6 IPs |
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Cyberjaya | Malaysia | 4 IPs |
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Mumbai | India | 6 IPs |
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Chennai | India | 8 IPs |
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Copenhagen | Denmark | 4 IPs |
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Santiago de Queretaro | Mexico | 8 IPs |
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Hanoi | Vietnam | 2 IPs |
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Tokyo | Japan | 12 IPs |
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Taipei | Taiwan | 4 IPs |
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Los Angeles | United States | 4 IPs |
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Dallas | United States | 4 IPs |
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Brisbane | Australia | 4 IPs |
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Houston | United States | 2 IPs |
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Toronto | Canada | 6 IPs |
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Santiago | Chile | 4 IPs |
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Kolkata | India | 2 IPs |
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Bangkok | Thailand | 6 IPs |
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Barcelona | Spain | 4 IPs |
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Recife | Brazil | 4 IPs |
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Bucharest | Romania | 6 IPs |
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Munich | Germany | 4 IPs |
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Dubai | United Arab Emirates | 2 IPs |
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Warsaw | Poland | 6 IPs |
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Tel Aviv | Israel | 1 IP |
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Amsterdam | Netherlands | 3 IPs |
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Milan | Italy | 6 IPs |
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Vancouver | Canada | 4 IPs |
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Lima | Peru | 6 IPs |
|
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Seattle | United States | 2 IPs |
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Auckland | New Zealand | 2 IPs |
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Rio de Janeiro | Brazil | 2 IPs |
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Stockholm | Sweden | 4 IPs |
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Helsinki | Finland | 2 IPs |
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Riyadh | United Arab Emirates | 1 IP |
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Amman | Jordan | 3 IPs |
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Lima | Peru | 4 IPs |
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Helsinki | Finland | 4 IPs |
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Johannesburg | South Africa | 2 IPs |
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Lausanne | Switzerland | 2 IPs |
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Palermo | Italy | 2 IPs |
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Athens | Greece | 2 IPs |
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Manila | Philippines | 2 IPs |
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Bangkok | Thailand | 2 IPs |
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Riga | Latvia | 2 IPs |
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Columbus | United States | 2 IPs |
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Dubai | United Arab Emirates | 82 IPs |
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Buenos Aires | Argentina | 78 IPs |
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Lisbon | Portugal | 63 IPs |
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Johannesburg | South Africa | 102 IPs |
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Marseille | France | 111 IPs |
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Milan | Italy | 102 IPs |
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Madrid | Spain | 89 IPs |
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Santiago de Queretaro | Mexico | 84 IPs |
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Muscat | Oman | 80 IPs |
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Vienna | Austria | 81 IPs |
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Atlanta | United States | 59 IPs |
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Montreal | Canada | 83 IPs |
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Dallas | United States | 53 IPs |
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Manchester | United Kingdom | 81 IPs |
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Paris | France | 96 IPs |
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Ho Chi Minh City | Vietnam | 89 IPs |
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Ashburn | United States | 86 IPs |
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Santiago | Chile | 84 IPs |
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Sao Paulo | Brazil | 91 IPs |
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Portland | United States | 50 IPs |
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Perth | Australia | 31 IPs |
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Bogota | Colombia | 85 IPs |
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Los Angeles | United States | 90 IPs |
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Seattle | United States | 73 IPs |
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Kolkata | India | 4 IPs |
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Cape Town | South Africa | 48 IPs |
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Helsinki | Finland | 85 IPs |
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Toronto | Canada | 89 IPs |
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Tokyo | Japan | 89 IPs |
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Nairobi | Kenya | 109 IPs |
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Stockholm | Sweden | 77 IPs |
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Manila | Philippines | 82 IPs |
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Singapore | Singapore | 85 IPs |
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Zurich | Switzerland | 77 IPs |
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Bangkok | Thailand | 91 IPs |
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Rome | Italy | 15 IPs |
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Kansas City | United States | 79 IPs |
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Miami | United States | 87 IPs |
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Oslo | Norway | 12 IPs |
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Chicago | United States | 89 IPs |
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Frankfurt | Germany | 98 IPs |
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New York | United States | 68 IPs |
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San Francisco | United States | 82 IPs |
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Seoul | South Korea | 85 IPs |
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Berlin | Germany | 1 IP |
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Taipei | Taiwan | 80 IPs |
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Tel Aviv | Israel | 76 IPs |
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Houston | United States | 78 IPs |
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Copenhagen | Denmark | 74 IPs |
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Fortaleza | Brazil | 81 IPs |
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Rio de Janeiro | Brazil | 79 IPs |
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Hamburg | Germany | 52 IPs |
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Warsaw | Poland | 83 IPs |
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Vancouver | Canada | 73 IPs |
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Sydney | Australia | 150 IPs |
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Manama | Bahrain | 65 IPs |
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Cairo | Egypt | 79 IPs |
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Hong Kong | Hong Kong | 83 IPs |
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Hyderabad | India | 88 IPs |
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Boston | United States | 46 IPs |
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London | United States | 90 IPs |
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New Delhi | India | 88 IPs |
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Melbourne | Australia | 115 IPs |
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Athens | Greece | 70 IPs |
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Mumbai | India | 79 IPs |
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Brussels | Belgium | 78 IPs |
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Dusseldorf | Germany | 8 IPs |
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Hanoi | Vietnam | 83 IPs |
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Amsterdam | Netherlands | 90 IPs |
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Kuala Lumpur | Malaysia | 79 IPs |
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Osaka | 4 IPs | |
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Chennai | 83 IPs | |
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Brisbane | 84 IPs | |
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Lima | 69 IPs | |
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Sofia | Bulgaria | 76 IPs |
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Barcelona | 68 IPs | |
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Budapest | 81 IPs | |
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Munich | 35 IPs | |
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Bengaluru | India | 4 IPs |
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Auckland | New Zealand | 1 IP |
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Dublin | Ireland | 4 IPs |
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Prague | Czechia | 58 IPs |
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Zagreb | Croatia | 65 IPs |
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Lagos | Nigeria | 74 IPs |
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Istanbul | Turkey | 8 IPs |
|
|
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Pune | India | 4 IPs |
Other Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
|
|
|
Core Network | United States | 12 IPs |
|
|
ASN AS12400 | Core Network | Israel | 4 IPs |
|
|
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Core Network | Philippines | 2 IPs |
|
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ASN AS9416 | Core Network | Taiwan | 2 IPs |
|
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ASN AS8551 | Core Network | Israel | 3 IPs |
|
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ASN AS9381 | Core Network | Hong Kong | 2 IPs |
|
|
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Core Network | United States | 79 IPs |
|
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Core Network | Philippines | 8 IPs |
|
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Core Network | South Africa | 8 IPs |
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Core Network | Japan | 16 IPs |
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Core Network | Australia | 8 IPs |
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Core Network | Indonesia | 8 IPs |
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Core Network | United Kingdom | 8 IPs |
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Core Network | France | 8 IPs |
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Core Network | Germany | 10 IPs |
|
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Core Network | China | 48 IPs |
|
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ASN AS38235 | Core Network | Cambodia | 3 IPs |
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ASN AS9873 | Core Network | Laos | 8 IPs |
|
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ASN AS45903 | Core Network | Vietnam | 8 IPs |
|
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ASN AS23969 | Core Network | Thailand | 2 IPs |
|
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ASN AS4609 | Core Network | Macao | 11 IPs |
|
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Core Network | China | 2 IPs |
|
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ASN AS55329 | Core Network | Cambodia | 8 IPs |
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