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
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{hidden}.alikunlun.com | and 4 more |
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{hidden}.github.io |
Core Networks
Applications are sometimes deployed on partner networks, parent company networks, or regional hosting providers. The following is a sample of Duolingo IP addresses deployed on this type of network.
| Network | PoP | Category | Location | IP | Shared |
|---|---|---|---|---|---|
|
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Core Network | Business | Australia | 20.190.142.161 | |
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Core Network | Business | Australia | 20.190.142.162 | |
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Core Network | Business | South Korea | 20.190.144.141 | |
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Core Network | Business | South Korea | 20.190.144.142 | |
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Core Network | Business | South Korea | 20.190.144.143 | |
| and 12 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 Duolingo are summarized below.
| Service | Category | Sample IP | IP Count |
|---|---|---|---|
|
|
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 | 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 Duolingo are summarized below by geographical points-of-presence (PoP). Each PoP can host many IPs to deliver an application.
| Cloud Hosts | # of IPs |
|---|---|
|
|
2 |
|
|
166 |
|
|
253 |
|
|
2 |
|
|
2 |
|
|
1 |
| Host | PoP | Location | IPs |
|---|---|---|---|
|
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Core | China | 1 IP |
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Core | China | 2 IPs |
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Anycast | Global | 2 IPs |
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Ashburn | United States | 253 IPs |
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Anycast | Global | 2 IPs |
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Richmond | United States | 15 IPs |
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Des Moines | United States | 1 IP |
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Amsterdam | Netherlands | 9 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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Seoul | South Korea | 6 IPs |
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Tokyo | Japan | 7 IPs |
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Melbourne | Australia | 3 IPs |
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Chicago | United States | 14 IPs |
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Richmond | United States | 10 IPs |
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San Francisco | United States | 14 IPs |
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Sao Paulo | Brazil | 4 IPs |
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Paris | France | 14 IPs |
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San Antonio | United States | 14 IPs |
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Chennai | India | 2 IPs |
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Pune | India | 2 IPs |
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Osaka | Japan | 3 IPs |
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 |
|---|---|
|
|
5478 |
|
|
664 |
|
|
142 |
|
|
517 |
Anycast
| CDN | Network | Location | Sample IP | IPs |
|---|---|---|---|---|
|
|
|
Global | 4 IPs |
PoP Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
|
|
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London | United Kingdom | 16 IPs |
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Moscow | Russia | 16 IPs |
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Seoul | South Korea | 16 IPs |
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Singapore | Singapore | 58 IPs |
|
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Ho Chi Minh City | Vietnam | 8 IPs |
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Frankfurt | Germany | 16 IPs |
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Santiago | Chile | 8 IPs |
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Lima | Peru | 8 IPs |
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Stockholm | Sweden | 8 IPs |
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Paris | France | 8 IPs |
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Amsterdam | Netherlands | 8 IPs |
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Madrid | Spain | 16 IPs |
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Cairo | Egypt | 8 IPs |
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Jakarta | Indonesia | 8 IPs |
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Bogota | Colombia | 8 IPs |
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Melbourne | Australia | 8 IPs |
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Hong Kong | Hong Kong | 21 IPs |
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Milan | Italy | 16 IPs |
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Buenos Aires | Argentina | 8 IPs |
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Bangkok | Thailand | 8 IPs |
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San Jose | United States | 8 IPs |
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Taipei | Taiwan | 8 IPs |
|
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Sydney | Australia | 8 IPs |
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Istanbul | Turkey | 8 IPs |
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Manila | Philippines | 8 IPs |
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Johannesburg | South Africa | 8 IPs |
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Muscat | Oman | 8 IPs |
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Cyberjaya | Malaysia | 8 IPs |
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Mumbai | India | 8 IPs |
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New Delhi | India | 8 IPs |
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Tokyo | Japan | 8 IPs |
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Moscow | Russia | 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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Beijing | China | 1 IP |
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Sofia | Bulgaria | 2 IPs |
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Accra | Ghana | 2 IPs |
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Manila | Philippines | 2 IPs |
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Kuala Lumpur | Malaysia | 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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Lisbon | Portugal | 2 IPs |
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Dallas | United States | 5 IPs |
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Tokyo | Japan | 6 IPs |
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Frankfurt | Germany | 4 IPs |
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Toronto | Canada | 6 IPs |
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Atlanta | United States | 5 IPs |
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Seattle | United States | 2 IPs |
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Hong Kong | Hong Kong | 2 IPs |
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Melbourne | Australia | 2 IPs |
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Osaka | Japan | 1 IP |
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Sao Paulo | Brazil | 4 IPs |
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Madrid | Spain | 4 IPs |
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Fujairah | United Arab Emirates | 2 IPs |
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Chennai | India | 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 | 2 IPs |
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Helsinki | Finland | 2 IPs |
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Vienna | Austria | 2 IPs |
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Dublin | Ireland | 2 IPs |
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Copenhagen | Denmark | 2 IPs |
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London | United Kingdom | 4 IPs |
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Marseille | France | 2 IPs |
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Hyderabad | India | 1 IP |
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San Jose | United States | 1 IP |
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Denver | United States | 3 IPs |
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Johannesburg | South Africa | 2 IPs |
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Rome | Italy | 1 IP |
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Miami | United States | 2 IPs |
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Sydney | Australia | 2 IPs |
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Vancouver | Canada | 2 IPs |
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Stockholm | Sweden | 1 IP |
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New Delhi | India | 1 IP |
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Amsterdam | Netherlands | 2 IPs |
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Rio de Janeiro | Brazil | 2 IPs |
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Fortaleza | Brazil | 2 IPs |
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Ashburn | United States | 2 IPs |
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Dubai | United Arab Emirates | 2 IPs |
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Chicago | United States | 4 IPs |
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Los Angeles | United States | 2 IPs |
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Brussels | Belgium | 2 IPs |
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New York | United States | 3 IPs |
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Brisbane | Australia | 2 IPs |
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Montreal | Canada | 4 IPs |
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Mumbai | India | 1 IP |
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Houston | United States | 2 IPs |
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Buenos Aires | Argentina | 2 IPs |
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Kolkata | India | 2 IPs |
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Rotterdam | Netherlands | 1 IP |
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Manchester | United Kingdom | 2 IPs |
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Edge - Buenos Aires | Argentina | 77 IPs |
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Edge - Lisbon | Portugal | 59 IPs |
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Edge - Milan | Italy | 99 IPs |
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Edge - Santiago de Queretaro | Mexico | 70 IPs |
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Edge - Johannesburg | South Africa | 79 IPs |
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Edge - Vienna | Austria | 65 IPs |
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Edge - Montreal | Canada | 74 IPs |
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Edge - Paris | France | 77 IPs |
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Edge - Sao Paulo | Brazil | 68 IPs |
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Edge - Perth | Australia | 72 IPs |
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Edge - Copenhagen | Denmark | 48 IPs |
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Edge - Toronto | Canada | 83 IPs |
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Edge - Hong Kong | Hong Kong | 68 IPs |
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Edge - Sydney | Australia | 122 IPs |
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Edge - London | United Kingdom | 83 IPs |
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Edge - Tel Aviv | Israel | 67 IPs |
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Edge - Miami | United States | 89 IPs |
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Edge - Dallas | United States | 72 IPs |
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Edge - Warsaw | Poland | 75 IPs |
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Edge - Amsterdam | Netherlands | 91 IPs |
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Edge - Los Angeles | United States | 64 IPs |
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Edge - Seattle | United States | 13 IPs |
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Edge - Mumbai | India | 71 IPs |
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Edge - Frankfurt | Germany | 87 IPs |
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Edge - Ashburn | United States | 80 IPs |
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Edge - San Francisco | United States | 55 IPs |
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Edge - Dubai | United Arab Emirates | 88 IPs |
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Edge - Chennai | India | 76 IPs |
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Edge - New York | United States | 72 IPs |
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Edge - Helsinki | Finland | 81 IPs |
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Edge - Zurich | Switzerland | 62 IPs |
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Edge - Manama | Bahrain | 77 IPs |
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Edge - Manila | Philippines | 48 IPs |
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Edge - Budapest | Hungary | 86 IPs |
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Edge - Sofia | Bulgaria | 79 IPs |
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Edge - Marseille | France | 80 IPs |
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Edge - Hamburg | Germany | 30 IPs |
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Edge - Atlanta | United States | 61 IPs |
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Edge - Kuala Lumpur | Malaysia | 63 IPs |
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Edge - Melbourne | Australia | 96 IPs |
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Edge - Prague | Czechia | 39 IPs |
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Edge - Zagreb | Croatia | 61 IPs |
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Edge - Fortaleza | Brazil | 67 IPs |
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Edge - Madrid | Spain | 73 IPs |
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Edge - Kansas City | United States | 68 IPs |
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Edge - Stockholm | Sweden | 79 IPs |
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Edge - Singapore | Singapore | 85 IPs |
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Edge - Chicago | United States | 69 IPs |
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Edge - Istanbul | Turkey | 24 IPs |
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Edge - Muscat | Oman | 66 IPs |
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Edge - Santiago | Chile | 73 IPs |
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Edge - Kolkata | India | 63 IPs |
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Edge - Tokyo | Japan | 84 IPs |
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Edge - Bangkok | Thailand | 72 IPs |
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Edge - Seoul | South Korea | 75 IPs |
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Edge - Taipei | Taiwan | 77 IPs |
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Edge - Houston | United States | 65 IPs |
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Edge - Osaka | Japan | 16 IPs |
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Edge - Brisbane | Australia | 77 IPs |
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Edge - New Delhi | India | 72 IPs |
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Edge - Manchester | United Kingdom | 66 IPs |
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Edge - Ho Chi Minh City | Vietnam | 13 IPs |
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Edge - Bogota | Colombia | 86 IPs |
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Edge - Rome | Italy | 8 IPs |
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Edge - Oslo | Norway | 58 IPs |
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Edge - Vancouver | Canada | 79 IPs |
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Edge - Hyderabad | India | 76 IPs |
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Edge - Athens | Greece | 71 IPs |
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Edge - Brussels | Belgium | 71 IPs |
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Edge - Dusseldorf | Germany | 57 IPs |
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Edge - Lima | Peru | 64 IPs |
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Edge - Barcelona | Spain | 66 IPs |
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Edge - Nairobi | Kenya | 76 IPs |
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Edge - Lagos | Nigeria | 68 IPs |
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Edge - Cairo | Egypt | 66 IPs |
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Edge - Cape Town | South Africa | 50 IPs |
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Edge - Jeddah | Saudi Arabia | 44 IPs |
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Edge - Philadelphia | United States | 16 IPs |
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Edge - Rio de Janeiro | Brazil | 65 IPs |
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Edge - Boston | United States | 16 IPs |
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Edge - Munich | Germany | 19 IPs |
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Edge - Portland | United States | 28 IPs |
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Edge - Berlin | Germany | 8 IPs |
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Edge - Hanoi | Vietnam | 56 IPs |
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Edge - Nashville | United States | 4 IPs |
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Edge - Tampa | United States | 8 IPs |
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Edge - Bucharest | Romania | 3 IPs |
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Edge - Phoenix | United States | 8 IPs |
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Edge - Bengaluru | India | 8 IPs |
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Edge - Pune | India | 8 IPs |
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Amsterdam | Netherlands | 4 IPs |
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Vienna | Austria | 8 IPs |
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Athens | Greece | 6 IPs |
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Sao Paulo | Brazil | 6 IPs |
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Curitiba | Brazil | 2 IPs |
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Cape Town | South Africa | 2 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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Dusseldorf | Germany | 4 IPs |
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Dublin | Ireland | 8 IPs |
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Stockholm | Sweden | 11 IPs |
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Istanbul | Turkey | 2 IPs |
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London | United Kingdom | 12 IPs |
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Isando | South Africa | 6 IPs |
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Sofia | Bulgaria | 4 IPs |
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Porto Alegre | Brazil | 4 IPs |
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Buenos Aires | Argentina | 4 IPs |
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Bangkok | Thailand | 4 IPs |
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Bengaluru | India | 4 IPs |
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Ashburn | United States | 14 IPs |
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Honolulu | United States | 2 IPs |
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Los Angeles | United States | 4 IPs |
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Sydney | Australia | 8 IPs |
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Hong Kong | Hong Kong | 17 IPs |
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Singapore | Singapore | 18 IPs |
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Ho Chi Minh City | Vietnam | 2 IPs |
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Oslo | Norway | 6 IPs |
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Warsaw | Poland | 10 IPs |
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Melbourne | Australia | 7 IPs |
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Miami | United States | 22 IPs |
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Fortaleza | Brazil | 4 IPs |
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Atlanta | United States | 4 IPs |
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Jakarta | Indonesia | 6 IPs |
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Tokyo | Japan | 14 IPs |
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Montreal | Canada | 6 IPs |
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Mumbai | India | 10 IPs |
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Kolkata | India | 4 IPs |
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Kuala Lumpur | Malaysia | 4 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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Rio de Janeiro | Brazil | 2 IPs |
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Copenhagen | Denmark | 4 IPs |
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Seoul | South Korea | 7 IPs |
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Hanoi | Vietnam | 2 IPs |
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Chennai | India | 8 IPs |
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Fujairah | United Arab Emirates | 4 IPs |
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Taipei | Taiwan | 6 IPs |
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Madrid | Spain | 8 IPs |
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Prague | Czechia | 4 IPs |
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Dubai | United Arab Emirates | 4 IPs |
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Bogota | Colombia | 12 IPs |
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Brisbane | Australia | 4 IPs |
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Houston | United States | 4 IPs |
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Dallas | United States | 6 IPs |
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Toronto | Canada | 4 IPs |
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Santiago | Chile | 4 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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Paris | France | 12 IPs |
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Berlin | Germany | 4 IPs |
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Tel Aviv | Israel | 3 IPs |
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Milan | Italy | 4 IPs |
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Glattbrugg | Switzerland | 4 IPs |
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Vancouver | Canada | 4 IPs |
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Lima | Peru | 4 IPs |
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Hyderabad | India | 2 IPs |
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Auckland | New Zealand | 2 IPs |
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Brasilia | Brazil | 2 IPs |
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Florianopolis | Brazil | 2 IPs |
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Santiago de Queretaro | Mexico | 2 IPs |
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Marseille | France | 2 IPs |
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Rome | Italy | 2 IPs |
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Haarlem | Netherlands | 2 IPs |
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Manchester | United Kingdom | 2 IPs |
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Hamburg | Germany | 2 IPs |
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Liljeholmen | Sweden | 4 IPs |
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Helsinki | Finland | 2 IPs |
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Amman | Jordan | 3 IPs |
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Muscat | Oman | 2 IPs |
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Lausanne | Switzerland | 4 IPs |
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Johannesburg | South Africa | 2 IPs |
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Helsinki | Finland | 2 IPs |
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Palermo | Italy | 2 IPs |
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Athens | Greece | 2 IPs |
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Bangkok | Thailand | 2 IPs |
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Riga | Latvia | 2 IPs |
Other Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
|
|
ASN AS12400 | Core Network | Israel | 4 IPs |
|
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Core Network | Philippines | 4 IPs |
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ASN AS4651 | Core Network | Thailand | 4 IPs |
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Core Network | Latvia | 2 IPs |
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Core Network | United Arab Emirates | 1 IP |
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ASN AS9381 | Core Network | Hong Kong | 2 IPs |
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ASN AS200612 | Core Network | Qatar | 2 IPs |
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Core Network | Finland | 2 IPs |
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ASN AS6057 | Core Network | Uruguay | 2 IPs |
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ASN AS21826 | Core Network | Venezuela | 2 IPs |
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ASN AS9416 | Core Network | Taiwan | 2 IPs |
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ASN AS20940 | Core Network | Hong Kong | 2 IPs |
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Core Network | China | 123 IPs |
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ASN AS9873 | Core Network | Laos | 8 IPs |
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Core Network | United States | 64 IPs |
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Core Network | Germany | 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 | France | 8 IPs |
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Core Network | Japan | 8 IPs |
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Core Network | United Kingdom | 8 IPs |
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ASN AS45903 | Core Network | Vietnam | 8 IPs |
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ASN AS4609 | Core Network | Macao | 12 IPs |
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Core Network | China | 1 IP |
|
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ASN AS55329 | Core Network | Cambodia | 8 IPs |
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