Is booklooker.de Safe? Security Analysis for booklooker.de: antiquarische und gebrauchte Bücher kaufen und verkaufen, Hörbücher, CDs, Filme und Spiele
https://booklooker.deCheck if booklooker.de is a scam or legitimate. Free security scan and reviews.
Above Retail avg (56)
10,000+
Domains scanned
500+
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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
Booklooker.de operates as a specialized online marketplace focused on the buying and selling of used and antiquarian books, audiobooks, music, films, and games. Established since 1999, it serves a large customer base exceeding 4.1 million users, offering a secure shopping experience with buyer protection and personalized customer service. The platform provides extensive search and filtering capabilities, user account management, and a seller depot system, positioning itself as a trusted intermediary in the German retail media sector. Technically, the website employs modern web technologies including jQuery and jQuery UI for dynamic user interface elements, and integrates a consent management platform to ensure compliance with privacy regulations. The site is served over HTTPS with no detected blocking or WAF interference, indicating good accessibility and security practices. However, some security headers are missing, which could be improved to enhance protection against common web threats. From a security perspective, the site demonstrates a mature posture with encrypted communications, secure login forms, and no visible exposure of sensitive data. Privacy policies and cookie consent mechanisms are clearly implemented, supporting GDPR compliance. The absence of direct contact emails or phone numbers is mitigated by a contact form, though adding verified contact details could improve trust. The domain registration is consistent with the website branding, though WHOIS data is limited due to DENIC privacy restrictions. Overall, booklooker.de presents a professional, secure, and user-friendly platform with a strong market position in the German used media retail sector. Strategic improvements in security headers and enhanced transparency in contact information could further strengthen its trustworthiness and compliance posture.
Detected Technologies
9 urgent findings need attention
1 critical · 8 high
- + 1 more findings in the full report below
Keep booklooker.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
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Security Headers
4 findings
65/100
GDPR Compliance
5 findings
28/100
NIS2 Compliance
8 findings
17/100
Email Security
4 findings
70/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Booklooker.de holds a significant position in the German retail market for used and antiquarian books and media, leveraging a marketplace business model that connects buyers and sellers. Its competitive advantage lies in its extensive inventory, buyer protection program, and long-standing reputation since 1999. The platform targets both individual consumers and professional dealers, providing tools for managing offers, purchases, and sales. The integration of a consent management platform and clear privacy policies reflects awareness of regulatory requirements. The company’s ecosystem includes a forum and social media presence, enhancing community engagement. Growth indicators include a large active user base and continuous content updates. The absence of explicit company registration details in WHOIS is typical for German domains but does not detract from its market credibility.
Security Posture Analysis
Comprehensive Security Assessment
The security posture of booklooker.de is solid, with HTTPS enforced site-wide and the use of a consent management platform for cookie compliance. The site avoids exposing sensitive information in its HTML and uses secure login forms. However, the lack of explicit security headers such as Content-Security-Policy and X-Frame-Options represents an area for improvement to mitigate risks like clickjacking and cross-site scripting. No vulnerabilities or malware indicators were detected in the provided content. Incident response contact information is not publicly disclosed, which is common but could be enhanced for transparency. Overall, the site aligns well with GDPR requirements and demonstrates a responsible approach to data protection and user privacy.
Strategic Recommendations
Priority Actions for Security Improvement
Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen web security.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Marktplatz für gebrauchte & antiquarische Bücher, Hörbücher, Musik, Filme und Spiele mit Käuferschutz und persönlichem Kundenservice.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- Consent management platform for cookie compliance
- Secure login forms
- No exposed sensitive data in HTML
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a well-established German marketplace for used and antiquarian books and media.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
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
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
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
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
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
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
DNS Records
DNSSEC Status
⚡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 booklooker.de compare?
See how booklooker.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
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PDF Report & Export
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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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