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Security report for skyliner.nl

Skyliner Automatisering B.V. · Technology · Netherlands

High risk. 10 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

39/100

Risk levelHigh

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

Skyliner Automatisering B.V. is a mature Dutch ICT service provider established in 1999, offering a broad range of ICT solutions including system management, cloud services, VoIP, software development, and security services. The company targets businesses and organizations in the Netherlands seeking reliable and comprehensive ICT support. Their market position is supported by long domain tenure, recognized certifications, and positive customer testimonials. Technically, the website is built on WordPress with modern plugins and scripts, but suffers from a lack of proper SSL/TLS configuration, impacting security posture. The site is well structured with good SEO and mobile optimization, though performance metrics indicate slow loading. Security-wise, the absence of HTTPS and security headers are critical issues, though no active vulnerabilities or WAF blocking were detected. Privacy compliance is well addressed with clear policies and cookie consent mechanisms. Overall, the website reflects a credible and professional ICT business but requires urgent improvements in SSL security to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
0/ 100 · Critical
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

10 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • Critical

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

  2. 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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

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

Keep watching skyliner.nl

This scan found 22 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

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Full report

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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
0
Security headers
15
Email security
50
DNS health
70
Network security
100
GDPR outside view
0
Average
39

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

Technical appendix

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

Business context

Business profile

Skyliner operates as an essential ICT service provider in the Netherlands, focusing on managed ICT solutions and strategic IT consulting. Their business model revolves around providing tailored ICT services and support, leveraging certifications like ICT Waarborg and Microsoft Gold Partner to build trust. The company maintains active social media channels and publishes relevant content, indicating a growth-oriented and customer-focused approach. Their service portfolio covers critical ICT needs including security, cloud, and software development, positioning them competitively in the local market. The absence of privacy protection in WHOIS data aligns with their transparent business approach. No suspicious patterns were found, supporting a strong legitimacy profile.

Security posture

The current security posture is moderate but with critical gaps. The lack of a valid SSL certificate and HTTPS implementation is a major vulnerability that exposes users to data interception risks. The absence of security headers and HSTS further weakens the defense against common web attacks. However, no known SSL vulnerabilities or WAF blocking were detected, and DNSSEC is enabled, which is positive. The site uses modern JavaScript libraries and Google Tag Manager for analytics, with a cookie consent mechanism in place, supporting privacy compliance. Incident response and security policies are not publicly documented, which could be improved to enhance security culture and readiness.

Recommendations

  1. Implement a valid SSL/TLS certificate and enforce HTTPS site-wide immediately.
  2. Enable HTTP Strict Transport Security (HSTS) with includeSubDomains and preload options.
  3. Add essential security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Publish a clear security policy and incident response contact information on the website.
  5. Regularly audit and update third-party scripts and plugins to avoid vulnerabilities.

Contact details published on the site

Addresses
Legal name
Skyliner Automatisering B.V.
Technical notes

Notes

The website is powered by WordPress with the Enfold theme and uses common plugins like Autoptimize and LazySizes for performance optimization. It employs jQuery and Google Tag Manager for analytics and tracking. Despite these modern technologies, the site suffers from slow performance and lacks HTTPS, which is a critical technical debt. The DNS setup is robust with DNSSEC enabled but lacks CAA records. The site is mobile optimized and SEO friendly with structured data and Open Graph metadata properly implemented. Hosting details are not explicit but the IP suggests a Dutch hosting provider. Overall, the technical infrastructure is solid but requires urgent security upgrades and performance tuning.
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

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