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Domain Due Diligence
Report for Trendyol.com

Report Date October 21, 2025
Recommendation
Caution
Overall Summary
Suspicious
Why we think so

Trendyol.com is a popular e-commerce marketplace widely used in Turkey, with about 118 million monthly visits. It shows robust technical infrastructure, uses reputable payment processors like PayPal and Visa, and has extensive social media presence. However, numerous user reports cite problems with refunds and undelivered orders, pointing to recurring customer service issues. Legally, Trendyol has faced substantial fines for unfair competitive practices in Turkey. Overall, while Trendyol is a large, technically sound platform, user experiences show significant concerns about financial transactions and support.

Confidence Score
65%

Risk Insights

🛒

Large E-commerce Platform with High Traffic

About 118 million monthly visits globally
Ranked #221 worldwide for traffic
Strong presence mainly in Turkey
⚠️

Significant User Complaints on Refunds

Multiple complaints of refund delays and order non-delivery
Poor customer service access reported
Risk of financial loss noted in user reviews
⚖️

Regulatory Fines for Anticompetitive Actions

Fined over TRY 61 million by Turkey's Competition Board
Found to favor own products over third-party sellers
Legal scrutiny may impact business practices

Contradictory Signals

Technical security is strong but financial customer trust issues remain.

Signal A: High-tech security and valid SSL certificate

Signal B: Widespread unresolved customer refund complaints

Category Scores

Identity 85/100
Reputation 40/100
Technical 90/100
Content 50/100
Legal 60/100
Business Validity 70/100

Red Flags & Warnings

  • Persistent customer complaints about refunds, delivery failures, and poor customer service.
  • Recent regulatory fines and investigations for anti-competitive conduct in Turkey.

🔎 Detailed Checks & Analysis

Domain popularity and traffic

Score: 80/100
Passed

"This strong traffic supports the site's legitimacy and operational scale."

Reason: Trendyol.com is a top-ranked site with about 118 million monthly visits, indicating strong marketplace presence.

Technical security and infrastructure

Score: 90/100
Passed

"These features reduce risk of technical fraud, enhancing user security."

Reason: SSL is valid and domain uses reputable payment services like PayPal and Visa.

Reputation from user complaints

Score: 30/100
Failed

"These issues signify risk of financial loss and user dissatisfaction."

Reason: Multiple verified user reports describe refund failures and poor customer service.

Legal and regulatory standing

Score: 60/100
Failed

"Shows some legal compliance concerns that users should note."

Reason: Trendyol was fined for anticompetitive behavior and faced legal scrutiny in Turkey.

Blacklist and phishing status

Score: 10/100
Passed

"No detected major cybersecurity risks from third-party monitoring."

Reason: No blacklisting or phishing warnings found in Google Safe Browsing or crypto scam lists.

Your Next Steps

  • 1
    Exercise caution when making purchases; consider ordering small amounts first.
  • 2
    Contact Trendyol through verified social media or phone contacts for refund issues.
  • 3
    Monitor payment statements closely for unauthorized charges.
  • 4
    Check regulatory news for updates on Trendyol's legal status in Turkey.
  • 5
    Use trusted payment methods with buyer protection options.

Evidence & Citations

🕵🏻 Keep investigating

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