When was duolingo.com built?
Analyzed 30 October 2026. Re-analyze
Estimated launch
October 2010
There's good evidence for the year, but the exact month is less certain.
BuiltWhen verified that duolingo.com launched in October 2010 (71% confidence), with domain registration recorded in January 2010.
- Website age
- ~16 years
- From estimated launch
- Domain registered
- January 2010
- Not the launch date
- First evidence
- October 2010
- Internet Archive (Wayback Machine)
- Current version
- Between May and June 2018
- Possible major redesign
History at a glance
The domain and the website have separate lives. Website age is measured from the launch, not from registration.
Timeline
January 2010
Domain registered
The domain was registered. This is not the same as the website launching.
Confirmed
April–October 2010
Between October 2010 and July 2012
Between May and June 2018
October 2026
Built with today
Detected on the live homepage. Select a technology to see the evidence.
- Hosting / CDN
AWS, 90% confidence. Show evidence.
- Amazon CloudFront x-amz-cf-id header
- 90% detection confidence
- Tag manager
Google Tag Managersince 2019, 90% confidence. Show evidence.
- GTM container script / ID
- 90% detection confidence
Why we think it launched in 20106 pieces of evidence, each linked to its source
- First archived copy of the website: October 2010.
- Domain registered: January 2010 (9 months earlier).
January 2010
Domain registered
The domain's current registration began on this date. A website can only launch after this, but often launches much later.
Sets the earliest possible dateRDAP registry dataView source
October 2010
First archived copy of the website
The earliest successful snapshot of the homepage showing real website content in the Internet Archive.
The estimate is based on thisInternet Archive (Wayback Machine)View source
October 2010
jQuery first seen
jQuery appears in archived copies of the site from this date.
Background onlyInternet Archive (Wayback Machine)
July 2012
Google Analytics first seen
Google Analytics appears in archived copies of the site from this date.
Background onlyInternet Archive (Wayback Machine)
April 2017
Meta Pixel first seen
Meta Pixel appears in archived copies of the site from this date.
Background onlyInternet Archive (Wayback Machine)
September 2019
Google Tag Manager first seen
Google Tag Manager appears in archived copies of the site from this date.
Background onlyInternet Archive (Wayback Machine)
What we checked
- Domain registry (RDAP)Checked
- Internet Archive indexChecked
- Live websiteChecked
- Archived page comparisonChecked
191 months of archived homepage copies; 15 compared in detail (sampling was cut short). BuiltWhen estimates from observable evidence and can be wrong. How estimates work
Domain registrationRegistered January 2010 · Amazon Registrar, Inc.
- Registered
- 26 January 2010
- Registration expires
- 26 January 2027
- Registry record updated
- 15 May 2026
- Registrar
- Amazon Registrar, Inc.
- Nameservers
- ns-1020.awsdns-63.net, ns-1117.awsdns-11.org, ns-1904.awsdns-46.co.uk, ns-247.awsdns-30.com
Public registry data via RDAP. Registrant details are never collected.