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Security report for prg.aero

Letiště Praha, a.s. · Transportation · Czech Republic

High risk. 5 critical or high findings in Network security, GDPR outside view and 1 other check.

Security score

49/100

Risk levelHigh

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

Letiště Praha, a.s. operates the Václav Havel Airport Prague, the primary international airport serving the Czech capital. The website provides comprehensive information and services for passengers, including flight status, parking, VIP lounges, transportation options, and retail services. The airport holds several certifications indicating a commitment to customer experience and sustainability. Technically, the site is built on Drupal 10, integrates modern analytics and marketing tools, and offers a responsive, accessible user experience. Security posture is solid with HTTPS and consent management, though security headers could be improved. WHOIS data is unavailable, which slightly impacts trust but the overall digital presence and certifications support legitimacy. The site is safe for general audiences and well-optimized for performance and SEO.

Scanned

This is an earlier scan of prg.aero. View the latest report

NIS2 and GDPR posture

GDPR outside view
65/ 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

5 findings rated critical or high. Fix these first.

  1. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: PostgreSQL

      Port 5432 (PostgreSQL) is publicly accessible - PostgreSQL - Database server

      What to do: Immediately restrict access to PostgreSQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection
    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  2. GDPR outside view

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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, Twitter, LinkedIn, YouTube, Cloudflare

      What to do: Document all third-party data sharing in your privacy policy

  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 prg.aero

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  • 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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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
95
Email security
85
DNS health
80
Network security
0
GDPR outside view
65
Average
67
After the cap
49

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 · found on this site
  • 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

The airport holds a dominant market position as the main gateway to Prague and the Czech Republic, targeting travelers, businesses, and local communities. Revenue streams include passenger services, parking, retail, and VIP offerings. The website links to partner domains for careers, airport city development, and parking services, indicating a broad partnership ecosystem. The business model focuses on providing comprehensive airport services and enhancing passenger experience. Growth indicators include new flight routes and service expansions. The company maintains a professional and consistent brand image with strong trust signals such as certifications and official social media presence.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, privacy and cookie policies with consent mechanisms, and no visible sensitive data exposure. However, the absence of explicit security headers like Content-Security-Policy and X-Frame-Options is a gap. No vulnerability disclosures or security.txt files were found, which could improve transparency. Incident response contact information is limited but present under compliance pages. Overall, the site aligns well with GDPR compliance and best practices but could enhance header security and incident response visibility.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Publish a security.txt file to facilitate vulnerability reporting and improve transparency.
  3. Enhance visibility and accessibility of incident response and abuse contact information.
  4. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and practices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Letiště Praha, a.s.
Description
Letiště Václava Havla Praha is the main international airport serving Prague, providing passenger and cargo air transport services, parking, VIP lounges, and other airport-related services.
Key services
Flight information, Parking services including valet, Passenger check-in and security, VIP lounges and fast track, Taxi and transportation services, Retail and dining
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal 10, Google Tag Manager, Google Analytics, Microsoft Clarity, Bloomreach Exponea, Select2, LazySizes
Frameworks
Drupal CMS
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of consent management for cookies

Analytics and tracking

Services
Google Analytics, Microsoft Clarity
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Adform
Tracking pixels
Microsoft Clarity, Facebook Pixel, Teads
Marketing tools
Bloomreach Exponea
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 multiple services.
  2. Uses modern CMS (Drupal 10) and integrates multiple analytics and marketing tools.
  3. Strong focus on passenger services and airport-related information.
  4. Comprehensive privacy and cookie policies with consent management.
  5. WHOIS data is unavailable or malformed, limiting domain trust verification.
  6. No security headers detected in provided data; recommend adding.
  7. No signs of adult or questionable content; safe for general audiences.
Technical notes

Notes

The website is built on Drupal 10, a modern and robust CMS platform, ensuring scalability and security. It uses advanced analytics tools such as Google Analytics and Microsoft Clarity, and marketing platforms like Bloomreach Exponea. The site is mobile-optimized with responsive images and lazy loading for performance. SEO is well addressed with proper meta tags and Open Graph data. Performance is moderate, with potential improvements in script loading and caching. Accessibility features are present but could be further enhanced. The technical infrastructure supports a professional and user-friendly digital presence, though security header implementation is recommended.
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. 49/100High26 findingsView report
  2. 49/100High25 findingsView report
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