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Security report for holidu.co.nz

Holidu GmbH · Hospitality · New Zealand

Low risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

76/100

Risk levelLow

0–100, higher is better. How it is calculated

Holidu GmbH operates a sophisticated online platform specializing in holiday home rentals, offering a wide range of verified accommodations including family and pet-friendly options. The company targets holiday travelers primarily in Europe but maintains a global presence with localized sites. The website demonstrates a mature digital infrastructure with modern JavaScript frameworks, comprehensive privacy and cookie policies, and integration with major analytics and advertising platforms. Security posture is strong with HTTPS enforcement and security headers, though explicit security policies and incident response information are not publicly disclosed. Overall, the site is professional, trustworthy, and well-optimized for user experience and SEO.

Scanned

This is an earlier scan of holidu.co.nz. View the latest report

NIS2 and GDPR posture

GDPR outside view
58/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching holidu.co.nz

This scan found 17 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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Full report

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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
77
Security headers
70
Email security
80
DNS health
70
Network security
100
GDPR outside view
58
Average
76

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention holidu.co.nz, from OffSeq Breach.

No leaked records found

Breach holds no records for holidu.co.nz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Holidu positions itself as a specialist in the holiday rental market with a focus on verified listings and user trust, leveraging star host badges and free cancellation policies as competitive advantages. The business model centers on an online marketplace connecting travelers with property owners, monetizing through bookings and partnerships. The company maintains a broad partnership ecosystem with sister sites in multiple countries, enhancing market reach. Growth indicators include extensive filtering options and a rich catalog of properties. The absence of direct contact information on the site suggests a focus on automated and self-service customer interactions.

Security posture

The website employs strong security best practices including HTTPS, security headers, and cookie consent mechanisms. Use of fingerprinting technology indicates advanced fraud detection capabilities. However, the lack of publicly available security policies, incident response contacts, and vulnerability disclosure channels represents a gap in transparency and readiness communication. No vulnerabilities or exposed sensitive data were detected in the HTML content. Compliance with GDPR is indicated by privacy policy and cookie consent. Overall, the security maturity is good but could be enhanced by publishing more explicit security governance information.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency and trust.
  2. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Provide clear and verified contact information for security and customer support inquiries.
  4. Regularly audit third-party scripts and tracking technologies to minimize potential vulnerabilities.
  5. Enhance data retention disclosures and user privacy controls to align with evolving compliance standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Holidu GmbH
Description
Holidu offers a huge selection of high-quality holiday homes, baches, villas with verified accommodation at the best price. They specialize in holiday accommodation with amenities like pools, sea views, child-friendly and pet-friendly options, focusing on the most beautiful holiday regions in Europe.
Key services
Holiday home search and booking, Verified accommodation listings, Filters for amenities and family/pet friendliness
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, ThumbmarkJS fingerprinting, Google Analytics, Google Tag Manager, Bing Ads, Taboola, Facebook Connect
Frameworks
React
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Secure cookie consent mechanism
  • Use of fingerprinting for fraud detection

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Bing Ads
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Bing Ads, Taboola, Facebook Ads
Tracking pixels
Bing Ads, Facebook Connect, Taboola
Marketing tools
Taboola
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and interactive search features.
  2. No WHOIS data available for .co.nz domain, indicating privacy protection or non-public registration.
  3. Strong privacy and cookie consent mechanisms implemented.
  4. Multiple international partner domains linked, indicating a broad market presence.
  5. Use of modern JavaScript frameworks and analytics/tracking tools.
  6. No explicit contact emails or phone numbers found in the HTML content.
  7. No visible security.txt or vulnerability disclosure page.
  8. Star Host badges indicate trust and quality assurance for listings.
Technical notes

Notes

The website is built using modern web technologies including React and various third-party analytics and advertising scripts. Performance is moderate with good mobile optimization and accessibility features. The site uses asynchronous script loading and font loading strategies to improve user experience. No CMS was explicitly detected, suggesting a custom or headless architecture. Hosting provider details are not disclosed. The technical stack supports a scalable and responsive platform suitable for a large international audience. Opportunities exist to improve performance further by optimizing third-party script usage and enhancing caching strategies.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

Earlier scans of this domain

  1. 75/100Medium27 findingsView report
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