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Is tandem-schools.com a Scam? Security Check Results - TANDEM Language Schools Reviews

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Is tandem-schools.com Safe? Security Analysis for TANDEM Language Schools

Check if tandem-schools.com is a scam or legitimate. Free security scan and reviews.

EducationGermanysmall
TYPO3 CMSBootstrapjQueryFancyboxJustifiedGallery
Analyzed 7/31/2025Completed 4:20:56 AM
54
Security Score
MEDIUM RISK

AI Summary

TANDEM Language Schools is a non-profit association of independent language schools offering German and Spanish courses primarily in Germany, Spain, and Chile. The organization focuses on immersive language learning combined with cultural experiences, targeting language learners interested in these regions. The website is built on TYPO3 CMS and hosted by Hetzner Online GmbH, reflecting a moderate level of digital maturity with a clean, professional design and multilingual support. Security posture is adequate with HTTPS enabled but lacks advanced security headers and DNSSEC, indicating room for improvement. Privacy compliance is partial with a privacy policy present but no cookie consent mechanism detected. Overall, the website is trustworthy and functional but could enhance security and privacy features to align with best practices.

Detected Technologies

TYPO3 CMSBootstrapjQueryFancyboxJustifiedGallery

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

The business operates as a language school network with a focus on quality and cultural immersion, serving a niche market of language learners in Europe and South America. Its non-profit status and regional presence provide competitive advantages in authenticity and local adaptation. The business model relies on member schools offering courses independently under shared quality standards. The absence of direct contact emails or phone numbers on the main pages suggests a centralized contact approach via forms. Social media channels support marketing and community engagement. Growth potential exists through expanding digital presence and enhancing compliance with privacy regulations.

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates basic security hygiene with HTTPS enabled and no visible exposed sensitive data. However, the lack of DNSSEC, security headers, and explicit incident response or security policy pages indicates a moderate security maturity level. No vulnerabilities or malware indicators were found in the content. The absence of cookie consent mechanisms may pose GDPR compliance risks. The organization should prioritize implementing security headers, DNSSEC, and formalizing incident response contacts to strengthen its security posture.

Strategic Recommendations

Priority Actions for Security Improvement

1

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

Company:

TANDEM Language Schools

Description:

Deutsch und Spanisch lernen mit TANDEM Language Schools, ein deutsch-spanischer Sprachschulverband mit unabhängigen und gemeinnützigen Sprachschulen in Deutschland, Spanien und Chile. Fokus auf lebendigen, professionellen Sprachunterricht, interkulturelle Begegnungen und individuelle Entwicklung.

Key Services:
Deutschkurse in DeutschlandSpanischkurse in SpanienSpanischkurse in Chile
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
TYPO3 CMSBootstrapjQueryFancyboxJustifiedGallery
Frameworks:
TYPO3
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
65/100
Best Practices:
  • HTTPS enabled

Analytics & Tracking

Tracking Level:minimal
Privacy Compliance:basic

Advertising & Marketing

Transparency Level:poor

Website Quality Assessment

Design Quality:good
User Experience:good
Content Relevance:good
Navigation Clarity:good
Professionalism:good
Trustworthiness:moderate

Key Observations

1

Website is fully accessible and not blocked by WAF or security mechanisms.

🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

25/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

Cache-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

53/100
Score

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

No Data Protection Officer mentioned

LOW

Large organizations may need to designate a DPO under GDPR

Privacy policy may not be GDPR compliant

MEDIUM

Privacy policy lacks explicit GDPR compliance elements

GDPR Compliance Analysis

Privacy Policy85% confidence
Cookie Policy0% confidence
Contact Information Found90% confidence
phone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

2/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

Critical sector without clear security compliance

HIGH

Detected sectors: energy, transport

📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Email Security

SPF, DKIM, and DMARC validation

70/100
Score

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
SPF Details
Record:
v=spf1 +a +mx ?all
DNS Lookups:2/10
Policy:?all

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

100/100
Score

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:tandem-schools.com
Issuer:Encryption Everywhere DV TLS CA - G2
Valid Until:7/6/2026 (340 days)
SANs:tandem-schools.com, www.tandem-schools.com

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

85/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

DNS Records

A Records:88.198.176.139
AAAA Records:2a01:4f8:d0a:129d::2
Name Servers:
ns.second-ns.comDNS only
ns1.your-server.deDNS only
ns3.second-ns.deDNS only
MX Records:
10: www314.your-server.de

DNSSEC Status

DNSSEC Not Enabled

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

20/100
Score

High-Risk Service Exposed: FTP

HIGH

Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

Service Exposed: SSH

MEDIUM

Port 22 (SSH) is publicly accessible - SSH - Secure but can be brute-forced

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website uses TYPO3 CMS, a mature open-source content management system, combined with Bootstrap and jQuery for responsive design and interactivity. Hosting is provided by Hetzner Online GmbH, a reputable German hosting provider. Performance is moderate with some optimization (e.g., image compression via pagespeed). The site is multilingual with hreflang tags for German, English, and Spanish. No advanced analytics or tracking scripts were detected, indicating a privacy-conscious approach or limited marketing automation. Accessibility is basic but could be improved with ARIA roles and enhanced keyboard navigation support.
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