Domain Due Diligence
Report for Esim.io
Report generated: Dec 11, 2025
Why we think so?
esim.io is a telecommunications website offering international eSIM mobile internet packages for over 180 countries, attracting about 265K monthly visits. It primarily serves users in Türkiye and the US. The site uses reputable technologies like Amazon Web Services and Google Cloud, supports payment via major providers like Visa and PayPal, and employs industry-standard security features including HTTPS and SPF records. Multiple trademarks exist for the ESIM brand, some live and some abandoned, reflecting a complex ownership history. The domain is well-established, registered since 2019 with privacy-protecting WHOIS information. User reviews indicate both satisfied customers praising ease of use and value, and notable complaints about activation issues and unresponsive support. The domain is not flagged by major scam or phishing blacklists. Legal terms designate English courts for disputes and establish strict refund policies. Overall, esim.io is a legitimate service with mixed user experiences, requiring caution especially for first-time users.
Risk Insights
Stable Technical Infrastructure
- Uses Amazon and Google Cloud services
- Valid SSL certificate issued recently
- Extensive DNS and email authentication records
Mixed User Feedback
- Good reviews highlight ease and value
- Complaints focus on activation failures
- Support is often slow or unhelpful
Strict No-Refund Policy
- No refunds once eSIM delivered electronically
- Refunds possible only via app store purchase flows
- Increases financial risk if service fails
Contradictory Signals
The domain infrastructure and trust signals contrast with the less reliable customer experience
Signal A: Domain is well-ranked and technically sound
Signal B: Many users report poor service and support
Category Scores
Red Flags & Warnings
- Frequent customer complaints about non-functioning eSIMs and ineffective support.
- Non-refundable policy post-delivery increases risk if service activation fails.
🔎 Detailed Checks & Analysis
Domain Infrastructure and Technical Signals
Score: 90/100
Domain Infrastructure and Technical Signals
"The domain technology stack including AWS, Google Cloud, SPF email records, and TLS security supports legitimacy."
Reason: esim.io uses reputable hosting providers like Amazon and Google Cloud with valid SSL certificates and extensive DNS records.
Traffic and User Engagement Analysis
Score: 80/100
Traffic and User Engagement Analysis
"Traffic pattern aligns with a typical active telecommunications provider website serving multiple countries."
Reason: The site receives over 265K monthly visits mostly from Türkiye and the US, with average bounce rate and engagement metrics.
Ownership and WHOIS Registry Details
Score: 85/100
Ownership and WHOIS Registry Details
"WHOIS data suggests stability and no privacy issues, reducing risks of a fly-by-night operation."
Reason: Domain created in 2019 with privacy-protected registrant, standard domain status codes, and long expiry date to 2033.
Reputation and User Reviews
Score: 45/100
Reputation and User Reviews
"Positive user testimonials exist but are outweighed by non-trivial service problems and refund issues."
Reason: Multiple credible complaints about activation failures and unresponsive customer support reduce trust.
Blacklist and Threat Intelligence
Score: 90/100
Blacklist and Threat Intelligence
"The domain shows no detected threats or blacklisting by key scanners."
Reason: No presence on malware, phishing, or crypto scam blacklists such as Google Safe Browsing and crypto scam sniffers.
Trademark and Brand Authenticity
Score: 70/100
Trademark and Brand Authenticity
"This may cause confusion but does not prove fraud."
Reason: Multiple trademarks exist for 'ESIM' but most are dead or registered to unrelated entities, indicating potential brand ambiguity.
Your Next Steps
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1
If considering a purchase, test a small eSIM package first to confirm activation before traveling.
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2
Use payment methods that support chargebacks such as credit cards or PayPal to mitigate financial risk.
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3
Save all purchase confirmations, activation messages, and support correspondence for potential disputes.
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4
Contact esim.io support via their website chat or email (support@esim.io) for assistance, but prepare for limited responsiveness.
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5
Check app store reviews and third-party complaint sites before buying to assess current user experiences.
Evidence & Citations
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Detailed user reviews and complaints on esim.io service and support
Summarizes positive and negative user experiences including activation issues and refund policies.
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Domain technical and infrastructure details for esim.io
Includes traffic stats, technology stack, and security features.
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esim.io not found on crypto scam or Google Safe Browsing blacklists
No detected phishing or malware incidents.
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US Patent and Trademark Office results for 'ESIM'
Shows active and abandoned trademarks related to the ESIM brand.
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