DUOLINGO.COM Duolingo: Learn Spanish, French and other languages for free


duolingo.com website information.

duolingo.com website servers are located in United States and are responding from following IP address 54.165.40.136. Check the full list of most visited websites located in United States.

duolingo.com domain name is registered by .COM top-level domain registry. See the other sites registred in .COM domain zone.

Following name servers are specified for duolingo.com domain:

  • ns-1020.awsdns-63.net
  • ns-1117.awsdns-11.org
  • ns-1904.awsdns-46.co.uk
  • ns-247.awsdns-30.com

and probably website duolingo.com is hosted by awsdns-63.net web hosting company. Check the complete list of other most popular websites hosted by awsdns-63.net hosting company.

According to Alexa traffic rank the highest website duolingo.com position was 594 (in the world). The lowest Alexa rank position was 1782. Now website duolingo.com ranked in Alexa database as number 758 (in the world).

Website duolingo.com Desktop speed measurement score (81/100) is better than the results of 75.25% of other sites and shows that the page is performing great on desktop computers.

duolingo.com Mobile usability score (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of duolingo.com (58/100) is better than the results of 49.62% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Jun-16-2019 75850
Jun-15-2019 808-70
Jun-14-2019 73828
Jun-13-2019 7668
Jun-12-2019 774-180
Jun-11-2019 594131
Jun-10-2019 72529

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duolingo.com Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.


duolingo.com whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


Domain Name: DUOLINGO.COM
Registry Domain ID: 1583217344_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Update Date: 2015-11-05T13:05:43Z
Creation Date: 2010-01-26T21:42:38Z
Registrar Registration Expiration Date: 2019-01-26T21:42:38Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited http://www.icann.org/epp#clientUpdateProhibited
Domain Status: clientRenewProhibited http://www.icann.org/epp#clientRenewProhibited
Domain Status: clientDeleteProhibited http://www.icann.org/epp#clientDeleteProhibited
Registry Registrant ID: Not Available From Registry
Registrant Name: Luis von Ahn
Registrant Organization:
Registrant Street: 5533 Walnut Street
Registrant Street: third floor
Registrant City: Pittsburgh
Registrant State/Province: Pennsylvania
Registrant Postal Code: 15232
Registrant Country: US
Registrant Phone: +1.4129010559
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: biglou@gmail.com
Registry Admin ID: Not Available From Registry
Admin Name: Luis von Ahn
Admin Organization:
Admin Street: 5533 Walnut Street
Admin Street: third floor
Admin City: Pittsburgh
Admin State/Province: Pennsylvania
Admin Postal Code: 15232
Admin Country: US
Admin Phone: +1.4129010559
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: biglou@gmail.com
Registry Tech ID: Not Available From Registry
Tech Name: Luis von Ahn
Tech Organization:
Tech Street: 5533 Walnut Street
Tech Street: third floor
Tech City: Pittsburgh
Tech State/Province: Pennsylvania
Tech Postal Code: 15232
Tech Country: US
Tech Phone: +1.4129010559
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: biglou@gmail.com
Name Server: NS-1020.AWSDNS-63.NET
Name Server: NS-1904.AWSDNS-46.CO.UK
Name Server: NS-1117.AWSDNS-11.ORG
Name Server: NS-247.AWSDNS-30.COM
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2016-09-18T18:00:00Z

duolingo.com server information

Servers Location

duolingo.com desktop page speed rank

Last tested: 2016-06-12


Desktop Speed Medium
81/100

duolingo.com Desktop Speed Test Quick Summary


priority - 16 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

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Optimize CSS Delivery of the following:

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priority - 4 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

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https://ssl.google-analytics.com/ga.js (2 hours)

priority - 2 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

None of the final above-the-fold content could be rendered even with the full HTML response.

duolingo.com Desktop Resources

Total Resources44
Number of Hosts16
Static Resources30
JavaScript Resources17
CSS Resources3

duolingo.com Desktop Resource Breakdown

duolingo.com mobile page speed rank

Last tested: 2016-06-12


Mobile Speed Bad
58/100

duolingo.com Mobile Speed Test Quick Summary


priority - 64 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

https://d7mj4aqfscim2.cloudfront.net/proxy/js2/8b7…5f165ef7e9a0-vendor.js
https://d7mj4aqfscim2.cloudfront.net/proxy/js2/8b7…165ef7e9a0-duolingo.js

Optimize CSS Delivery of the following:

https://d7mj4aqfscim2.cloudfront.net/proxy/css2/a2…536aea4b6c2b_0.min.css
https://d7mj4aqfscim2.cloudfront.net/proxy/css2/a2…536aea4b6c2b_1.min.css
https://d7mj4aqfscim2.cloudfront.net/proxy/css2/a2…536aea4b6c2b_2.min.css

priority - 8 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

None of the final above-the-fold content could be rendered even with the full HTML response.

priority - 6 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://d7mj4aqfscim2.cloudfront.net/proxy/fonts/m…unded-100-webfont.woff (expiration not specified)
https://content.googleapis.com/discovery/v1/apis/o…ameters%2Cmethods&pp=0 (5 minutes)
https://content.googleapis.com/discovery/v1/apis/p…ameters%2Cmethods&pp=0 (5 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/en_US/sdk.js (20 minutes)
https://apis.google.com/js/client:plusone.js?onloa…dGoogleClientLibraries (30 minutes)
https://apis.google.com/js/rpc:shindig_random.js?onload=init (30 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)

duolingo.com Mobile Resources

Total Resources45
Number of Hosts16
Static Resources30
JavaScript Resources18
CSS Resources3

duolingo.com Mobile Resource Breakdown

duolingo.com mobile page usability

Last tested: 2016-06-12


Mobile Usability Good
100/100

duolingo.com Mobile Resources

Total Resources45
Number of Hosts16
Static Resources30
JavaScript Resources18
CSS Resources3

duolingo.com Mobile Resource Breakdown

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duolingo.com Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


duolingo.com TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.