Is holidu.se 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 comprehensive vacation rental platform specializing in high-quality holiday homes, apartments, villas, and cottages primarily targeting European consumers. The website offers a rich user experience with extensive filtering options for amenities such as pools, sea views, pet-friendliness, and family suitability. The company positions itself as a trusted specialist in vacation rentals with a strong market presence across multiple European countries. Technically, the site leverages modern web technologies including React and Tailwind CSS, with integrations for analytics and advertising through Google Analytics, Tag Manager, Taboola, Bing Ads, and Facebook Connect. Security posture is solid with HTTPS enforced and standard security headers present, though explicit security policies and incident response information are not publicly disclosed. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. The absence of WHOIS data for the exact domain queried introduces some uncertainty in domain legitimacy, but the overall digital footprint and branding indicate a reputable business. Strategic recommendations include publishing security and incident response policies, implementing security.txt, and enhancing CSP headers to further strengthen security.
Detected Technologies
9 urgent findings need attention
1 critical · 8 high
- + 1 more findings in the full report below
Keep holidu.se 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 GmbH operates a multi-regional vacation rental marketplace with sister sites targeting various European markets. The business model focuses on aggregating and verifying vacation rental listings, providing consumers with a trustworthy booking experience. Revenue streams likely include commissions on bookings and partnerships with property owners. The platform targets families, pet owners, and travelers seeking specialized amenities. The company demonstrates strong branding consistency and trust signals such as verified accommodations and star host badges. The partnership ecosystem includes multiple regional domains and advertising networks. Growth indicators include extensive content, mobile app availability, and comprehensive filtering options. The company maintains a professional online presence with good SEO and user experience, positioning it well in the competitive vacation rental industry.
Security Posture Analysis
Comprehensive Security Assessment
The website exhibits a mature security posture with HTTPS enforced and multiple security headers configured to protect user data and privacy. Forms use secure POST methods for redirects, and cookie consent mechanisms are implemented to comply with GDPR. However, the absence of publicly available security policies, incident response plans, and vulnerability disclosure mechanisms limits transparency. No vulnerabilities or exposed sensitive data were detected in the HTML content. The use of third-party scripts for analytics and advertising is extensive but standard for the industry. Recommendations include publishing a security.txt file, incident response information, and enhancing HTTP security headers such as Content Security Policy (CSP) to mitigate risks from third-party scripts. Overall, the security posture is good but could be improved with greater transparency and advanced header configurations.
Strategic Recommendations
Priority Actions for Security Improvement
Publish a security.txt file and vulnerability disclosure policy to facilitate responsible reporting.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Holidu GmbH
Stort urval av högkvalitativa semesterhus i hyra lägenheter ✔ Kontrollerat boende till bästa pris, boka med tillförsikt ✔ Semesterboende med pool, havsutsikt, barnvänligt, husdjursvänligt ✔ Specialist på de vackraste semesterregionerna ✔
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- Secure forms with POST method for redirects
- Cookie consent mechanism implemented
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich content and no blocking detected
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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
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 82 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 holidu.se compare?
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🔧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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