Is yollacalls.com Safe? Security Analysis for Yolla Calls International OÜ
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
Yolla Calls International OÜ operates a telecommunications service focused on providing affordable international calling and texting through its mobile app and web platform. Founded in 2014 and based in Estonia, Yolla targets international callers, expatriates, and travelers seeking cost-effective communication solutions. The company offers free calls between Yolla users and low-cost calls to any mobile or landline worldwide, supported by subscription offers and a reseller program. The website is professionally designed with clear navigation, mobile optimization, and comprehensive content including FAQs, offers, and social proof via Trustpilot reviews. Technically, the site uses modern frameworks such as Next.js and Material UI, integrates Google Tag Manager for analytics, and employs CookieYes for cookie consent management. Security posture is good with HTTPS enforced and no evident vulnerabilities, though some security headers could be improved and a formal security policy is absent. Privacy compliance is strong with clear privacy and cookie policies and GDPR adherence. Overall, the site presents a trustworthy and mature business with a solid digital presence.
Detected Technologies
7 urgent findings need attention
7 high
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Security drift alerts
Risk score drops, new high-severity issues, and header hardening gaps
Compliance watch
GDPR / NIS2 posture changes with governance evidence snapshots
Infrastructure surface
Unexpected open services, SSL expiry, DNS & email authentication changes
Content & tracker intelligence
Marketing tech shifts, analytics drift, and AI recommendation updates
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Security Headers
4 findings
70/100
GDPR Compliance
3 findings
65/100
NIS2 Compliance
8 findings
17/100
Email Security
3 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Yolla positions itself as a competitive player in the international telecommunications market by focusing on affordability and accessibility. Its freemium model encourages user acquisition through free Yolla-to-Yolla calls and incentivizes paid usage with low rates and welcome offers. The reseller program expands revenue streams and market reach. The company leverages partnerships such as Yolla eSIM to enhance service offerings. Social media engagement and Trustpilot integration support brand trust and customer feedback. The business model is sustainable with recurring revenue from subscriptions and credit purchases. The target audience includes global migrants, travelers, and cost-conscious consumers. The company’s Estonia base aligns with its international scope and regulatory compliance. No parent or subsidiary companies were identified, indicating an independent operation.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a solid security foundation with HTTPS enabled and clientTransferProhibited domain status protecting against unauthorized transfers. Payment processing is outsourced to third parties, reducing direct exposure to sensitive financial data. Cookie consent is managed via CookieYes, supporting privacy compliance. However, the absence of explicit security headers like Content-Security-Policy and X-Frame-Options suggests room for enhancement. No security.txt or incident response contacts were found, which could improve vulnerability management transparency. No exposed sensitive data or vulnerable libraries were detected. Overall, the security posture is good but could benefit from formalized policies and additional HTTP security headers to strengthen defenses.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and enforce comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Yolla Calls International OÜ
Yolla provides an international calling app that allows users to make cheap international calls to any mobile or landline phone worldwide. It offers free calls between Yolla users and low-cost calls to other phones using internet connectivity.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- No bank card data stored on site
- Use of third-party payment processors
- Cookie consent banner implemented
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and no blocking detected
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Weak Strict-Transport-Security configuration
LOWCurrent value: "max-age=15724800"
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Missing Referrer-Policy header
LOWControls referrer information sent with requests
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
Domain Registration Details
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
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🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.
SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
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