DUOLINGO.COM Duolingo

duolingo.com Website Information

Daily Unique Visits: 2,886,110

Daily Page Views: 23,088,880

Income Per Day: $23,089

Estimated Value: $24,936,120

This website is located in United States and is using following IP address 184.72.124.184. See the complete list of popular websites hosted in United States.

duolingo.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website duolingo.com is using the following name servers:

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

and is probably hosted by AMAZON-AES - Amazon.com, Inc., US. See the full list of other websites hosted by AMAZON-AES - Amazon.com, Inc., US.

The highest website duolingo.com position in Alexa rank database was 320 and the lowest rank position was 1782. Current position of duolingo.com in Alexa rank database is 528.

Desktop speed score of duolingo.com (81/100) is better than the results of 71.91% of other sites and shows that the page is performing great on desktop computers.

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

Mobile speed score of duolingo.com (67/100) is better than the results of 70.58% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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duolingo.com Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


duolingo.com whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


Domain Name: DUOLINGO.COM
Registry Domain ID: 1583217344_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.registrar.amazon.com
Registrar URL: http://registrar.amazon.com
Updated Date: 2020-12-23T23:03:12Z
Creation Date: 2010-01-26T21:42:38Z
Registry Expiry Date: 2022-01-26T21:42:38Z
Registrar: Amazon Registrar, Inc.
Registrar IANA ID: 468
Registrar Abuse Contact Email: abuse@amazonaws.com
Registrar Abuse Contact Phone: +1.2067406200
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS-1020.AWSDNS-63.NET
Name Server: NS-1117.AWSDNS-11.ORG
Name Server: NS-1904.AWSDNS-46.CO.UK
Name Server: NS-247.AWSDNS-30.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-04-24T20:36:09Z

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 - 16Eliminate 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.

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 - 4Leverage 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)

priority - 2Prioritize 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 Resource Breakdown

Total Resources44
Number of Hosts16
Static Resources30
JavaScript Resources17
CSS Resources3

duolingo.com mobile page speed rank

Last tested: 2019-12-02


Mobile Speed Medium
67/100

duolingo.com Mobile Speed Test Quick Summary


priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://d35aaqx5ub95lt.cloudfront.net/css/ltr-12b78405.css

priority - 1Leverage 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://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/173569…0310?v=2.9.14&r=stable (20 minutes)

duolingo.com Mobile Resource Breakdown

Total Resources23
Number of Hosts5
Static Resources20
JavaScript Resources2
CSS Resources1

duolingo.com mobile page usability

Last tested: 2019-12-02


Mobile Usability Good
100/100

duolingo.com HTML validation

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 1 Column: 83 - 166
"...t="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no"><meta ..."

Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.

Line: 1 Column: 16 - 31
"...TYPE html><html dir="ltr"><head>..."

Errors

Attribute “width” not allowed on element “div” at this point.

Line: 1 Column: 4253 - 4330
"...<noscript><div style="position:fixed; top:0; left:0; display:none" width="1" height="1"><img s..."

Attribute “height” not allowed on element “div” at this point.

Line: 1 Column: 4253 - 4330
"...<noscript><div style="position:fixed; top:0; left:0; display:none" width="1" height="1"><img s..."

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duolingo.com Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


duolingo.com TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.