Is holidu.at Safe? Security Analysis for Holidu GmbH
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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
Holidu GmbH operates a leading European vacation rental platform specializing in holiday homes, apartments, and villas. The website offers a comprehensive search and booking experience with a strong focus on family-friendly and pet-friendly accommodations. The company positions itself as a trusted specialist in European holiday regions, providing verified listings and competitive pricing. Technically, the site uses modern frameworks such as React and Tailwind CSS, with performance optimizations and mobile responsiveness. Security posture is solid with HTTPS enforced and standard security headers, though explicit incident response and vulnerability disclosure policies are not publicly available. Privacy compliance is well addressed with clear cookie consent and a comprehensive privacy policy. Overall, the site is professional, trustworthy, and safe for general audiences.
Detected Technologies
9 urgent findings need attention
2 critical · 7 high
- + 1 more findings in the full report below
Keep holidu.at 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
3 findings
70/100
GDPR Compliance
4 findings
33/100
NIS2 Compliance
8 findings
17/100
Email Security
2 findings
80/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Holidu's market positioning as a specialist vacation rental platform in Europe is supported by its multilingual regional domains and extensive property listings. The business model centers on aggregating and comparing vacation rental offers, monetizing through bookings and partnerships. Target customers include families, pet owners, and travelers seeking verified holiday homes. The company leverages partnerships across multiple European countries, enhancing its reach and brand recognition. Growth indicators include a well-maintained website with mobile apps and integration of advanced tracking and marketing tools. Strategic observations suggest continued expansion in European markets and potential for further service diversification.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a mature security posture with HTTPS enforced and use of security headers like X-UA-Compatible and cache controls. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The use of fingerprinting technology (ThumbmarkJS) indicates proactive fraud detection measures. However, the absence of a published security policy, incident response contacts, or vulnerability disclosure mechanisms represents a compliance gap. The site should consider publishing a security.txt file and incident response information to enhance transparency and readiness. Overall, the security posture is good but can be improved with formalized policies and disclosures.
Strategic Recommendations
Priority Actions for Security Improvement
Publish a security.txt file to facilitate vulnerability reporting.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Holidu GmbH
Riesige Auswahl an hochwertigen Ferienhäusern, Ferienwohnungen, Fincas. Geprüfte Unterkünfte zum besten Preis mit Vertrauen buchen. Ferienhäuser mit Pool, Meerblick, kinderfreundlich, haustierfreundlich. Spezialist für die schönsten Urlaubsregionen Europas.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- No exposed credentials in HTML
- Secure cookie consent mechanism
- Use of fingerprinting for fraud detection
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
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🛡️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 Content-Security-Policy header
HIGHControls resources the browser is allowed to load
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 Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
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 DMARC reporting
LOWDMARC aggregate reports not configured
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
SPF Details
DMARC Details
MTA-STS Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Unable to retrieve SSL certificate
CRITICALCould not establish secure connection to retrieve certificate information
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
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 holidu.at compare?
See how holidu.at 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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