Recommendation

Caution

Overall Summary

Suspicious

Why we think so

OfferUp is a large U.S.-based e-commerce platform connecting local buyers and sellers for goods like cars, electronics, and furniture. The site ranks about #4,500 globally with roughly 9.5 million monthly visits, mostly from U.S. users. It uses established infrastructure and payment systems, with multiple official contact emails listed. Several trademarks for OFFERUP are registered by a company in Bellevue, WA. News mentions show OfferUp's active market presence. However, online reviews highlight frequent customer support issues and scam reports involve fraudulent listings and payment schemes. Despite this, the domain shows no technical or security red flags in blacklist or safe browsing checks.

Confidence Score

83%

Risk Insights

✅

Legitimate Brand with Registered Trademarks

OFFERUP trademarks are live and assigned to a Bellevue-based company.

Legal filings confirm active brand protection.

Supports domain's identity claim.

🌐

High Traffic with Solid Technology Stack

~9.5M monthly global visits, mostly from the US.

Uses major infrastructure like CloudFlare and AWS.

Integrated with popular payment gateways.

⚠️

User Reports Show Significant Risks

Common scams include fake listings and payment fraud.

Customer support often reported as poor or unresponsive.

Account deactivations without clear reasons.

Contradictory Signals

While the platform is established and secure technically, user experience and trust issues are significant and reduce overall reliability.

Signal A: Strong brand and technical infrastructure

Signal B: Frequent user complaints and scam reports

Category Scores

Identity 85/100

Reputation 40/100

Technical 90/100

Content 50/100

Legal 80/100

Business Validity 85/100

Red Flags & Warnings

Widespread user reports of scams involving fake listings, payment fraud, and account issues.
Poor customer service and unresolved complaints reduce user trust significantly.

🔎 Detailed Checks & Analysis

Trademark and Legal Identity Validation

Score: 85/100

Passed

"Trademarks are consistently registered with a legal entity in Bellevue, WA, strengthening brand authenticity."

Reason: The domain's trademarks are properly registered and active under a known company.

Domain Traffic and Technology Signals

Score: 90/100

Passed

"OfferUp receives around 9.5 million monthly visits, mostly from U.S. users, using industry-standard tech and payment platforms."

Reason: High traffic volume with credible technologies and payment integrations are present.

Security and Technical Safety Checks

Score: 90/100

Passed

"Domain passes crypto scam and Google Safe Browsing checks without alerts."

Reason: No blacklists or browser safety warnings detected.

Business Reputation and User Feedback

Score: 35/100

Failed

"Reviews point to slow or ineffective support and repeated scam incidents affecting users."

Reason: Serious complaints around customer service, account management, billing, and scams reduce trust.

Presence in News and Public Awareness

Score: 75/100

Passed

"Recent PR and news articles discuss OfferUp's market activity alongside consumer safety concerns."

Reason: News coverage confirms active market presence but also highlights scam-related issues.

Contact and Ownership Transparency

Score: 85/100

Passed

"The domain shows standard WHOIS data, SSL certificate, and official channels consistent with legitimate business."

Reason: Multiple verified contact emails and social media links present.

Your Next Steps

1

Use caution when buying or selling on OfferUp; verify seller ratings and transaction history.
2

Prefer local, in-person transactions or use OfferUp's official payment and shipping services.
3

Report suspicious users or listings directly through OfferUp's reporting tools.
4

Avoid off-platform payments like wire transfers, gift cards, or external apps.
5

Keep documentation of all transactions in case resolution is needed.

Evidence & Citations

OfferUp Common User Complaints and Scam Reports
Summarizes frequent user issues including scams, account problems, and support challenges.
USPTO Trademark Search for OFFERUP
Confirms registered trademarks under OfferUp Inc. in Bellevue, WA.
OfferUp SimilarTech Profile and Technologies
Details site traffic, technology stack, and payment systems used.
Crypto Scam Sniffer Blacklist Check
No blacklisting detected for the domain.
Recent News Mentions of OfferUp
News shows active brand presence and reports related to platform usage.
OfferUp Official Contact Information
Includes verified company emails and social media accounts.

🕵🏻 Keep investigating

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