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 |
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.
| SaaS | # of IPs |
|---|---|
|
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1 |
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8 |
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5 |
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2 |
|
|
3 |
| 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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Advertiser | 3.215.172.219 | 5 IPs |
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Shopping | 23.227.38.74 | 2 IPs |
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Business | 52.54.12.15 | 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 here.
Duolingo leverages multiple cloud providers to support different components of its service architecture. These platforms are used to deliver core application functionality, including API endpoints, data processing services, and hybrid content distribution, allowing Duolingo to optimize performance, reliability, and scalability across its offerings.
| Cloud Hosts | # of IPs |
|---|---|
|
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763 |
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17 |
|
|
186 |
|
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2 |
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|
5 |
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 |
|---|---|
|
|
646 |
|
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7173 |
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|
142 |
|
|
806 |
Anycast
| CDN | Network | Location | Sample IP | IPs |
|---|---|---|---|---|
|
|
|
Global | 199.232.139.7 | 17 IPs |
PoP Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
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Manila | Philippines | 8 IPs |
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Moscow | Russia | 16 IPs |
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Johannesburg | South Africa | 8 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 | 8 IPs |
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Seoul | South Korea | 16 IPs |
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Kuwait City | Kuwait | 8 IPs |
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Taipei | Taiwan | 8 IPs |
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Melbourne | Australia | 8 IPs |
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Sydney | Australia | 8 IPs |
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Stockholm | Sweden | 8 IPs |
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Madrid | Spain | 16 IPs |
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Milan | Italy | 13 IPs |
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Amsterdam | Netherlands | 12 IPs |
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Paris | France | 8 IPs |
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London | United Kingdom | 22 IPs |
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Lagos | Nigeria | 16 IPs |
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Singapore | Singapore | 64 IPs |
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Hong Kong | Hong Kong | 40 IPs |
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Frankfurt | Germany | 16 IPs |
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Tokyo | Japan | 8 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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Buenos Aires | Argentina | 8 IPs |
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Bogota | Colombia | 8 IPs |
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Santiago | Chile | 8 IPs |
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Lima | Peru | 8 IPs |
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Shanghai | China | 85 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 | 13 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 |
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Changchun | China | 1 IP |
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Brussels | Belgium | 2 IPs |
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Atlanta | United States | 4 IPs |
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Seattle | United States | 2 IPs |
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Sydney | Australia | 1 IP |
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Amsterdam | Netherlands | 2 IPs |
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San Jose | United States | 1 IP |
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New York | United States | 2 IPs |
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London | United Kingdom | 3 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 | 6 IPs |
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Dallas | United States | 6 IPs |
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Toronto | Canada | 2 IPs |
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Madrid | Spain | 3 IPs |
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Montreal | Canada | 5 IPs |
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Fujairah | United Arab Emirates | 2 IPs |
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Chennai | India | 1 IP |
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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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Rotterdam | Netherlands | 1 IP |
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Mumbai | India | 1 IP |
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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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Lima | Peru | 1 IP |
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Milan | Italy | 4 IPs |
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Helsinki | Finland | 2 IPs |
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Vienna | Austria | 2 IPs |
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New Delhi | India | 2 IPs |
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Dublin | Ireland | 2 IPs |
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Copenhagen | Denmark | 2 IPs |
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Singapore | Singapore | 5 IPs |
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Brisbane | Australia | 1 IP |
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Manchester | United Kingdom | 2 IPs |
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Marseille | France | 2 IPs |
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Miami | United States | 3 IPs |
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Kolkata | India | 2 IPs |
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Stockholm | Sweden | 1 IP |
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Sofia | Bulgaria | 2 IPs |
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Fortaleza | Brazil | 2 IPs |
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Accra | Ghana | 1 IP |
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Manila | Philippines | 2 IPs |
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Ashburn | United States | 2 IPs |
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Seoul | South Korea | 2 IPs |
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Rome | Italy | 1 IP |
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Dubai | United Arab Emirates | 2 IPs |
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Chicago | United States | 4 IPs |
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Lisbon | Portugal | 2 IPs |
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Los Angeles | United States | 2 IPs |
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Frankfurt | Germany | 4 IPs |
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Oslo | Norway | 1 IP |
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Munich | Germany | 1 IP |
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Columbus | United States | 14 IPs |
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Berlin | Germany | 11 IPs |
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Dubai | United Arab Emirates | 87 IPs |
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Buenos Aires | Argentina | 103 IPs |
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Lisbon | Portugal | 66 IPs |
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Johannesburg | South Africa | 120 IPs |
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Marseille | France | 111 IPs |
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Milan | Italy | 155 IPs |
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Madrid | Spain | 109 IPs |
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Santiago de Queretaro | Mexico | 137 IPs |
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Muscat | Oman | 80 IPs |
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Vienna | Austria | 100 IPs |
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Atlanta | United States | 86 IPs |
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Montreal | Canada | 137 IPs |
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Dallas | United States | 80 IPs |
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Manchester | United Kingdom | 87 IPs |
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Paris | France | 124 IPs |
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Ho Chi Minh City | Vietnam | 86 IPs |
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Ashburn | United States | 109 IPs |
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Santiago | Chile | 88 IPs |
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Sao Paulo | Brazil | 103 IPs |
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Portland | United States | 31 IPs |
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Perth | Australia | 24 IPs |
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Bogota | Colombia | 87 IPs |
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Los Angeles | United States | 121 IPs |
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Seattle | United States | 78 IPs |
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Kolkata | India | 8 IPs |
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Cape Town | South Africa | 73 IPs |
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Helsinki | Finland | 112 IPs |
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Toronto | Canada | 113 IPs |
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Tokyo | Japan | 117 IPs |
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Nairobi | Kenya | 107 IPs |
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Stockholm | Sweden | 100 IPs |
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Manila | Philippines | 88 IPs |
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Singapore | Singapore | 111 IPs |
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Zurich | Switzerland | 99 IPs |
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Bangkok | Thailand | 89 IPs |
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Rome | Italy | 37 IPs |
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Kansas City | United States | 90 IPs |
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Miami | United States | 105 IPs |
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Philadelphia | United States | 35 IPs |
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Oslo | Norway | 32 IPs |
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Chicago | United States | 103 IPs |
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Frankfurt | Germany | 106 IPs |
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New York | United States | 88 IPs |
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Seoul | South Korea | 110 IPs |
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Taipei | Taiwan | 83 IPs |
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Tel Aviv | Israel | 83 IPs |
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San Francisco | United States | 124 IPs |
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Houston | United States | 85 IPs |
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Copenhagen | Denmark | 74 IPs |
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Fortaleza | Brazil | 84 IPs |
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Rio de Janeiro | Brazil | 109 IPs |
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Hamburg | Germany | 88 IPs |
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London | United Kingdom | 109 IPs |
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Warsaw | Poland | 96 IPs |
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Lima | Peru | 67 IPs |
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Vancouver | Canada | 76 IPs |
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Sydney | Australia | 128 IPs |
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Manama | Bahrain | 111 IPs |
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Jeddah | Saudi Arabia | 4 IPs |
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Cairo | Egypt | 83 IPs |
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Hong Kong | Hong Kong | 96 IPs |
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Hyderabad | India | 92 IPs |
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Boston | United States | 46 IPs |
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New Delhi | India | 103 IPs |
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Melbourne | Australia | 86 IPs |
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Athens | Greece | 115 IPs |
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Mumbai | India | 101 IPs |
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Brussels | Belgium | 82 IPs |
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Auckland | New Zealand | 3 IPs |
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Dusseldorf | Germany | 12 IPs |
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Denver | United States | 8 IPs |
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Hanoi | Vietnam | 88 IPs |
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Amsterdam | Netherlands | 93 IPs |
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Kuala Lumpur | Malaysia | 85 IPs |
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Osaka | Japan | 4 IPs |
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Chennai | India | 91 IPs |
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Brisbane | Australia | 78 IPs |
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Bengaluru | India | 8 IPs |
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Sofia | Bulgaria | 76 IPs |
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Barcelona | Spain | 73 IPs |
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Budapest | Hungary | 85 IPs |
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Munich | Germany | 43 IPs |
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Phoenix | United States | 4 IPs |
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Dublin | Ireland | 6 IPs |
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Prague | Czechia | 58 IPs |
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Zagreb | Croatia | 65 IPs |
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Lagos | Nigeria | 77 IPs |
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Istanbul | Turkey | 12 IPs |
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Pune | India | 12 IPs |
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Amsterdam | Netherlands | 5 IPs |
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Vienna | Austria | 16 IPs |
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Athens | Greece | 6 IPs |
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Fujairah | United Arab Emirates | 10 IPs |
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Sao Paulo | Brazil | 10 IPs |
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Hamburg | Germany | 4 IPs |
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Curitiba | Brazil | 4 IPs |
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Cape Town | South Africa | 2 IPs |
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Dusseldorf | Germany | 6 IPs |
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Madrid | Spain | 11 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 | 23 IPs |
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Lisbon | Portugal | 10 IPs |
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Dublin | Ireland | 5 IPs |
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Stockholm | Sweden | 13 IPs |
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Istanbul | Turkey | 6 IPs |
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London | United Kingdom | 16 IPs |
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Johannesburg | South Africa | 4 IPs |
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Sofia | Bulgaria | 4 IPs |
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Bogota | Colombia | 7 IPs |
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Porto Alegre | Brazil | 4 IPs |
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Palermo | Italy | 2 IPs |
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Glattbrugg | Switzerland | 4 IPs |
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Prague | Czechia | 8 IPs |
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Buenos Aires | Argentina | 13 IPs |
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Warsaw | Poland | 8 IPs |
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Copenhagen | Denmark | 5 IPs |
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Milan | Italy | 12 IPs |
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Rome | Italy | 4 IPs |
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Oslo | Norway | 8 IPs |
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Barcelona | Spain | 4 IPs |
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Tel Aviv | Israel | 5 IPs |
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Bucharest | Romania | 6 IPs |
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Munich | Germany | 4 IPs |
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Sydney | Australia | 6 IPs |
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Bengaluru | India | 6 IPs |
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Ashburn | United States | 18 IPs |
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Fortaleza | Brazil | 8 IPs |
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Hong Kong | Hong Kong | 14 IPs |
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Singapore | Singapore | 28 IPs |
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Seoul | South Korea | 15 IPs |
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New York | United States | 3 IPs |
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Melbourne | Australia | 11 IPs |
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Miami | United States | 29 IPs |
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Secaucus | United States | 4 IPs |
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Marseille | France | 2 IPs |
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Tokyo | Japan | 18 IPs |
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Jakarta | Indonesia | 6 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 | 9 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 | 10 IPs |
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Santiago de Queretaro | Mexico | 10 IPs |
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Hanoi | Vietnam | 2 IPs |
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Santiago | Chile | 6 IPs |
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Taipei | Taiwan | 6 IPs |
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Los Angeles | United States | 4 IPs |
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Dallas | United States | 8 IPs |
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Dubai | United Arab Emirates | 8 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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Kolkata | India | 2 IPs |
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Bangkok | Thailand | 6 IPs |
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Recife | Brazil | 4 IPs |
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Florianopolis | Brazil | 4 IPs |
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Vancouver | Canada | 6 IPs |
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Lima | Peru | 2 IPs |
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Seattle | United States | 2 IPs |
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Hyderabad | India | 2 IPs |
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Auckland | New Zealand | 4 IPs |
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Brasilia | Brazil | 2 IPs |
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Rio de Janeiro | Brazil | 2 IPs |
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Riga | Latvia | 8 IPs |
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Amman | Jordan | 3 IPs |
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Riyadh | Saudi Arabia | 1 IP |
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Helsinki | Finland | 4 IPs |
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Stockholm | Sweden | 4 IPs |
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Manila | Philippines | 4 IPs |
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Lima | Peru | 4 IPs |
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Lausanne | Switzerland | 4 IPs |
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Johannesburg | South Africa | 2 IPs |
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Taipei | Taiwan | 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 |
Other Locations
| CDN | Network | PoP | Location | IPs |
|---|---|---|---|---|
|
|
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Core Network | United States | 10 IPs |
|
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Core Network | France | 2 IPs |
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Core Network | Hong Kong | 1 IP |
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ASN AS12400 | Core Network | Israel | 6 IPs |
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ASN AS4651 | Core Network | Thailand | 4 IPs |
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Core Network | Philippines | 2 IPs |
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ASN AS200612 | Core Network | Qatar | 2 IPs |
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ASN AS9416 | Core Network | Taiwan | 4 IPs |
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ASN AS8551 | Core Network | Israel | 3 IPs |
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ASN AS4760 | Core Network | Hong Kong | 2 IPs |
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ASN AS9381 | Core Network | Hong Kong | 2 IPs |
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Core Network | United States | 84 IPs |
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Core Network | Philippines | 8 IPs |
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Core Network | Netherlands | 8 IPs |
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Core Network | Hong Kong | 8 IPs |
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Core Network | South Africa | 8 IPs |
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Core Network | Japan | 8 IPs |
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Core Network | France | 16 IPs |
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Core Network | Mexico | 8 IPs |
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Core Network | Australia | 2 IPs |
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Core Network | United Kingdom | 14 IPs |
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Core Network | Germany | 8 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 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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