Is lerni.us Safe? Security Analysis for Lerni sp z o. o.
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Above Education avg (55)
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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
Lerni sp z o. o. operates an online language learning platform offering multimedia and gamified courses primarily targeting European language learners. The platform provides interactive lessons including films, photo lessons, exercises, grammar, dialogues, dictations, and vocabulary training, with certification upon completion. The business model is subscription-based, with a focus on accessibility via web and mobile browsers. The company is based in Poland and has been operating since 2014, indicating a mature presence in the online education market. Technically, the website employs AngularJS, jQuery, and various third-party analytics and marketing tools such as Google Tag Manager, Microsoft Clarity, Smartlook, and Facebook Pixel. The site is hosted with Name.com and uses HTTPS with a clientTransferProhibited domain status, but lacks DNSSEC and security headers, which are recommended for enhanced security. The website is mobile-optimized and has good SEO and accessibility basics. From a security perspective, the site has a moderate posture with HTTPS enforced but missing advanced security headers and no published security or incident response policies. There is no vulnerability disclosure or security.txt file. Privacy compliance is basic with cookie consent and a privacy policy present but lacking detailed GDPR compliance indicators. Business credibility is supported by clear company information, testimonials, and certification offerings. Overall, the website is functional, professional, and trustworthy for its educational purpose but would benefit from improved security practices and enhanced privacy compliance to strengthen user trust and regulatory adherence.
Detected Technologies
13 urgent findings need attention
13 high
- + 5 more findings in the full report below
Keep lerni.us under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
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
7 findings
20/100
GDPR Compliance
4 findings
35/100
NIS2 Compliance
8 findings
17/100
Email Security
4 findings
75/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Lerni positions itself as a multimedia-driven online language learning platform with gamification elements, targeting individual learners seeking flexible and interactive language education. Its subscription model and certification offerings suggest a recurring revenue stream. The company leverages partnerships via subdomains for teachers and blogging, enhancing content and community engagement. The presence of multiple European language options indicates a regional focus. The business shows signs of steady operation since 2014 with a small company size. The use of affiliate marketing (Admitad) and extensive tracking indicates a focus on digital marketing and user acquisition strategies.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Company Registration
Lerni sp. z o. o.
0000517524
Security Posture Analysis
Comprehensive Security Assessment
The security maturity of Lerni's website is moderate. HTTPS is properly implemented, and domain transfer protections are in place. However, the absence of DNSSEC and security headers like Content-Security-Policy and X-Frame-Options exposes the site to potential risks such as DNS spoofing and clickjacking. No public security policy or incident response contact is provided, which limits transparency and preparedness for security incidents. The extensive use of third-party tracking and advertising scripts increases the attack surface and privacy risks. No vulnerability disclosure or security.txt file is present, which is a gap in responsible security practices.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC on the domain to protect against DNS spoofing and improve domain security.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Lerni sp z o. o.
Lerni offers online language learning courses with multimedia content including films, photo lessons, exercises, grammar, dialogues, dictations, and vocabulary modules. The platform targets learners who want to improve language skills through interactive and gamified methods.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- ClientTransferProhibited domain status
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a multilingual online language learning platform with a focus on European languages.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
LOWControls referrer information sent with requests
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Facebook, Twitter, Google APIs
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
DMARC not enforcing
MEDIUMDMARC policy is set to "none"
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
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 49 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Mixed Content Detected
MEDIUM5 resources loaded over insecure HTTP
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints
Protocol Support
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
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy
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
How does lerni.us compare?
See how lerni.us stacks up against similar websites in the same industry.
🔧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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