Is zahlenzorro.de Safe? Security Analysis for Westermann Gruppe
https://zahlenzorro.deCheck if zahlenzorro.de is a scam or legitimate. Free security scan and reviews.
Above Education avg (55)
10,000+
Domains scanned
500+
Security teams trust us
EveryPay
Secure checkout
Instant
Reports delivered
Get the professional PDF report for zahlenzorro.de
Export this security analysis as a professional PDF document, receive it via email, and access marketing intelligence data including contact emails and phone numbers. One-time purchase for lifetime access.
PDF Report & Export
PDF download, email delivery, unlock code
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
AI Summary
Zahlenzorro is an educational online platform operated by the Westermann Gruppe, offering interactive math exercises targeted at primary school students (grades 1-4) in Germany. The platform provides engaging math stories, training apps, and classroom management tools with a subscription-based licensing model for individuals, classes, schools, and school districts. The website is professionally designed with consistent branding and clear navigation, supporting both desktop and mobile devices. It integrates Piwik analytics with privacy-conscious settings and links to reputable educational partners. Security posture is moderate with HTTPS usage and some privacy considerations, but lacks explicit security headers and published security policies. Contact information and trust signals such as awards and partner logos enhance credibility. Overall, the site is safe, compliant with GDPR, and well-positioned in the German educational market.
Detected Technologies
10 urgent findings need attention
1 critical · 9 high
- + 2 more findings in the full report below
Keep zahlenzorro.de 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
Cancel anytime. Alerts sent to the contacts you choose. Unlock the full report to view historical timelines and alerts.
Security Headers
7 findings
40/100
GDPR Compliance
5 findings
28/100
NIS2 Compliance
9 findings
2/100
Email Security
3 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The business operates in the education sector, focusing on digital learning tools for primary education. Its market position is strong within Germany, leveraging the Westermann brand and partnerships with other educational platforms like Alfons and Antolin. Revenue streams come from license sales at multiple levels (individual, class, school, district). The platform supports teachers with management features and motivates students through gamification elements. The company demonstrates a mature digital presence with apps and online services, indicating a medium to large enterprise scale. The partnership ecosystem and awards contribute to market trust and growth potential.
Security Posture Analysis
Comprehensive Security Assessment
The website employs HTTPS and uses Piwik analytics with cookie disabling for privacy. However, it lacks visible security headers such as Content Security Policy or HSTS, and there is no published security policy or incident response information. No vulnerability disclosure or security.txt file is found. Forms appear secure but no explicit security measures are detailed. Overall, the security maturity is moderate, with room for improvement in headers, policies, and transparency to enhance trust and compliance.
Strategic Recommendations
Priority Actions for Security Improvement
Implement comprehensive security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Westermann Gruppe
Online-Mathe-Aufgaben für die Grundschule: spannende Rechen-Geschichten, Einmaleins-Training, Knobelaufgaben, VERA-Aufgaben
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- Use of HTTPS (implied by https URL)
- DisableCookies flag in Piwik analytics for privacy
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich educational content
Get this report delivered to your inbox
Receive a summary of the zahlenzorro.de security findings by email. Quick and easy to share with decision makers.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Weak Strict-Transport-Security configuration
LOWCurrent value: "max-age=15552000"
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
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
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
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
Critical sector without clear security compliance
HIGHDetected sectors: transport
Need this report as a PDF?
Download the complete zahlenzorro.de security analysis as a professional PDF. Share it with your team, clients, or stakeholders.
📧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
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 75 days
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 Transfer Lock Not Enabled
MEDIUMDomain can be transferred without authorization
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
Domain Registration Details
- •No domain protection locks enabled
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 zahlenzorro.de compare?
See how zahlenzorro.de 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
Download the zahlenzorro.de report as PDF
Get the complete analysis in a shareable PDF format, delivered instantly to your email with lifetime access.
PDF Report & Export
PDF download, email delivery, unlock code
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
Scan your own website
Liked the zahlenzorro.de report? Run the same comprehensive security analysis on your domain — free, instant, and no sign-up required.
Or browse our directory of >10,000 scanned websites.
How did we do?
Your feedback directly shapes our roadmap. Rate the quality of this report, leave an optional comment, and let us know if you want our security specialists to follow up.
What others say about zahlenzorro.de
Share your experience to help others make informed decisions. We verify every review by email and publish it once our moderation team approves it.
Community rating
—out of 5
0 reviews published