Is openbiblio.social Safe? Security Analysis for Staatsbibliothek zu Berlin and Zentral- und Landesbibliothek Berlin (ZLB)
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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
OpenBiblio.Social is a specialized Mastodon instance serving the German-speaking library and information professional community. It is hosted and administered by reputable public institutions, namely the Staatsbibliothek… Unlock the full Guard report to read the complete analysis.
Detected Technologies
Keep openbiblio.social 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
4 findings
75/100
GDPR Compliance
3 findings
58/100
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.
Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.
Business Intelligence
Market & Strategic Analysis
The platform occupies a niche market position as a community-driven social media service tailored for library professionals in German-speaking countries. Its business model is non-commercial, focusing on community service and professional networking rather than monetization. The backing by major public libraries provides strong trust signals and institutional credibility. The service benefits from open-source software and a federated social network model, enabling interoperability with other Mastodon instances. Growth potential is linked to the expansion of the library professional community within the Fediverse. Partnerships with related organizations like OpenBiblio.eu enhance its ecosystem. The absence of advertising and tracking tools aligns with the community-focused and privacy-respecting ethos of the platform.
Security Posture Analysis
Comprehensive Security Assessment
The website exhibits a mature security posture with enforced HTTPS and no exposed sensitive data. The use of open-source Mastodon software and hosting within a German institutional IT department suggests adherence to good security practices. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options represents an area for improvement. No incident response or security policy pages are published, which could enhance transparency and preparedness. The lack of cookie consent mechanisms may be a minor compliance gap under GDPR. Overall, the security risk is low, but implementing recommended headers and policies would strengthen defenses and compliance.
Strategic Recommendations
Priority Actions for Security Improvement
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✨Observations
AI-powered comprehensive website and business analysis.
A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.
AI-Enhanced Website Analysis
Business Insights
Staatsbibliothek zu Berlin and Zentral- und Landesbibliothek Berlin (ZLB)
A decentralized social media Mastodon instance serving as an entry point to the Fediverse for library and information professionals in German-speaking countries.
good
consistent
Technical Stack
moderate
good
basic
basic
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- No vulnerable libraries detected in scripts
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a Mastodon instance focused on German-speaking library professionals.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.
Security Headers
HTTP security headers analysis
Weak X-XSS-Protection configuration
LOWCurrent value: "0" Unlock the full report to read the complete fix.
Weak Referrer-Policy configuration
LOWCurrent value: "same-origin" Unlock the full report to read the complete fix.
Missing Permissions-Policy header
MEDIUMControls browser features and APIs Unlock the full report to read the complete fix.
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages Unlock the full report to read the complete fix.
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
Preview of GDPR checkpoints is visible. Unlock to reveal full evidence, policy excerpts, and DPIA guidance.
GDPR Compliance
Privacy and data protection assessment
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage Unlock the full report to read the complete fix.
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies Unlock the full report to read the complete fix.
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements Unlock the full report to read the complete fix.
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.
No security contact information
HIGHNIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails Unlock the full report to read the complete fix.
No BIMI Record
LOWBIMI displays brand logos in email clients Unlock the full report to read the complete fix.
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery Unlock the full report to read the complete fix.
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues Unlock the full report to read the complete fix.
SPF Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1 Unlock the full report to read the complete fix.
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy Unlock the full report to read the complete fix.
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs Unlock the full report to read the complete fix.
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 65 days Unlock the full report to read the complete fix.
Mixed Content Detected
MEDIUM2 resources loaded over insecure HTTP Unlock the full report to read the complete fix.
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints Unlock the full report to read the complete fix.
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain Unlock the full report to read the complete fix.
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found Unlock the full report to read the complete fix.
No DMARC Record
MEDIUMDMARC policy not configured Unlock the full report to read the complete fix.
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.
Network Security
Port scanning and network exposure analysis
Service Exposed: SSH
MEDIUMPort 22 (SSH) is publicly accessible - SSH - Secure but can be brute-forced Unlock the full report to read the complete fix.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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