Domain Investigation Report

Report generated: Jan 3, 2026

duolingo.com

http://duolingo.com

Geo: unknown

Website:

Category: Domain

Recommendation

Proceed

Overall Summary

Safe

Why we think so?

Duolingo.com is a well-established language-learning platform with about 54 million monthly visits and a strong global ranking (#599). The site uses trusted infrastructure such as Amazon Web Services and employs recognized marketing and analytics tools. Trademark filings confirm ownership by Duolingo, Inc., based in Pittsburgh, USA. While the domain is clean from blacklists and Google Safe Browsing finds no threats, user reviews reveal complaints mainly about customer service, billing issues, and app glitches. Reports mention external scams exploiting the Duolingo brand, but no evidence shows the company itself engaging in fraudulent activities. Recent news highlights Duolingo's continued growth, product updates, and some public criticism related to its shift to AI-first operations. Overall, duolingo.com presents low technical and business risk but moderate reputation concerns due to external scam attempts and customer service reports.

Confidence Score Our overall confidence rating for this entity based on public signals, activity, and risk checks.

88%

Risk Insights

✅

Strong Brand and Ownership

Duolingo, Inc. owns trademarks registered from 2014 onward.
Legal filings show consistent corporate addresses in Pittsburgh, PA.
Registered trademarks cover language software and apparel.

🌐

High Web Traffic and User Base

About 54 million monthly visits with top users in the US and Brazil.
Site ranks #599 globally and #25 in education category.
Direct and search traffic make up 98% of visits.

⚠️

User Complaints and Scam Risks

Common complaints focus on billing issues and poor support.
Phishing scams exploit leaked user emails from 2023 breach.
Company not responsible, but users should remain cautious.

Category Scores

Red Flags & Warnings

Frequent customer complaints about poor support and billing issues indicate reputation risks.
External scams exploiting the Duolingo brand create potential user risk despite the domain's safety.

Detailed Checks & Insights

0-100 Scale

Domain and Traffic Analysis

Score: 90

Passed

"Uses verified traffic sources and ranking data from SimilarTech and SimilarWeb."

Reason: High monthly traffic and strong domain ranking indicate a legitimate and popular site.

Ownership and Trademark Verification

Score: 85

Passed

"Includes clear registrant info and active trademark statuses."

Reason: USPTO trademark records confirm ownership by Duolingo, Inc., establishing authentic branding.

Technical Security Review

Score: 90

Passed

"DNS records and security measures conform to standards."

Reason: SSL certificates are valid and infrastructure is hosted by reputable providers like Amazon AWS.

Blacklist and Phishing Status

Score: 100

Passed

"Indicates no detected large-scale abuse or phishing activity using domain itself."

Reason: No listings on crypto scam blacklists or Google Safe Browsing warnings.

Reputation and User Feedback

Score: 60

Failed

"External actors misuse brand in phishing scams, diluting reputation."

Reason: User reports point to issues with customer support, billing disputes, and app functionality problems.

Legal and Dispute Review

Score: 80

Passed

"Active trademark protection and no fraudulent claims against the domain found."

Reason: No direct lawsuits or legal disputes target duolingo.com, but some industry-related challenges are noted.

Your Next Steps

1

Use duolingo.com as a legitimate source for language learning, but stay cautious of phishing attempts via email or social media impersonations.
2

Verify all communications come from official duolingo.com domains especially before sharing personal or payment information.
3

Monitor for updates on user support improvements and keep an eye on possible billing issues if subscribing.
4

Avoid third-party crypto offerings or promotions claiming association with Duolingo without clear verification.

Evidence & Citations

SimilarTech Website Info
Provides traffic, technology, and ranking data.
USPTO Trademark Search for 'Duolingo'
Proof of trademark ownership and legal status.
Domain WHOIS and SSL Details
Domain age, registrar info, and certificate validity.
Google Safe Browsing Status
No detected threats or phishing.
User Reviews and Scam Reports
Mixed user feedback and scam advisories.
Recent Duolingo News
Updates on product launches and company performance.