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Security report for rajner.cz

Rajner Letenky · Transportation · Czech Republic

High risk. 12 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

43/100

Risk levelHigh

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

Rajner Letenky is a Czech Republic based online travel platform specializing in affordable flight tickets, weekend stays, and holiday packages. The website aggregates deals from over 800 companies and targets budget-conscious travelers primarily in the Czech market. The business operates mainly as an affiliate marketing platform, leveraging partnerships with multiple travel-related domains and Pelikan affiliate flights. Technically, the site is built on WordPress with Bootstrap and jQuery, providing a modern and responsive user experience. However, it lacks some advanced security headers and formal privacy or cookie policies, which are critical for compliance and trust. The site enforces HTTPS and uses affiliate widgets effectively but could improve its security posture and privacy compliance to enhance user trust and regulatory adherence.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

12 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

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL 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

  4. 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 rajner.cz

This scan found 25 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

€39.90one-time

  • The complete analysis as a PDF you can cite
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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
95
Security headers
15
Email security
65
DNS health
75
Network security
0
GDPR outside view
10
Average
43

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 company positions itself as a niche travel deals provider focusing on last-minute flight offers and weekend getaways in Europe. Its competitive advantage lies in aggregating a wide range of flight options and vacation packages at low prices. The business model is primarily affiliate marketing, generating revenue through referrals to partner sites. The target customer segment includes Czech-speaking travelers seeking affordable travel options. The website's partnership ecosystem includes several related travel domains, enhancing its market reach. Growth indicators are limited due to the site's recent domain registration in 2022, but the consistent branding and affiliate integration suggest a focused strategy.

Security posture

The website demonstrates a basic security posture with HTTPS enabled and no visible exposure of sensitive data. However, it lacks important security headers such as Content-Security-Policy, X-Frame-Options, and HSTS, which are recommended to mitigate common web vulnerabilities. There is no evidence of a security policy or incident response contact, which limits transparency in case of security incidents. The absence of a security.txt file or vulnerability disclosure mechanism further reduces the site's security maturity. Overall, while no critical vulnerabilities are apparent, the site would benefit from implementing standard security best practices and compliance documentation.

Recommendations

  1. Implement comprehensive privacy and cookie policies with user consent mechanisms to comply with GDPR.
  2. Add security headers including Content-Security-Policy, X-Frame-Options, and HSTS to enhance protection against common attacks.
  3. Publish a security.txt file and provide clear incident response contact information to improve transparency and trust.
  4. Include explicit contact information such as company email and phone numbers to enhance business credibility.
  5. Regularly audit and update third-party plugins and scripts to avoid vulnerabilities and improve performance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rajner Letenky
Description
Online platform offering cheap flight tickets, hotel reservations, car rentals, and travel insurance. Provides last-minute flight deals and weekend stay offers primarily targeting European destinations.
Key services
Cheap flight tickets, Weekend stays, Holiday packages, Hotel reservations, Car rentals, Travel insurance
Content quality
good
Branding
consistent

Technology

Stack
WordPress 6.8.2, Bootstrap, jQuery, Font Awesome, AOS (Animate On Scroll), Pelikan affiliate flights widget
Frameworks
WordPress, Bootstrap
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
65/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of latest WordPress version

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is a WordPress-based travel deals platform targeting Czech customers.
  2. No privacy, cookie, or terms of service policies found on the site.
  3. No contact emails or phone numbers explicitly provided on the homepage or footer.
  4. Uses affiliate marketing for flight deals via Pelikan affiliate widget.
  5. No visible security headers detected; HTTPS is enforced.
  6. No security.txt or vulnerability disclosure information found.
  7. Content is safe and suitable for general audiences.
  8. Site has good design and navigation but lacks some compliance and security best practices.
Technical notes

Notes

The website uses a modern WordPress CMS with Bootstrap for responsive design and jQuery for interactivity. It integrates third-party affiliate widgets from Pelikan for flight deals, enhancing its service offerings. The site loads external fonts from Google Fonts and uses Font Awesome icons. Performance is moderate with no major issues detected, and mobile optimization is good. However, accessibility features are basic and could be improved. SEO optimization is adequate with proper meta tags and structured data in JSON-LD format. The hosting provider is not explicitly identified, and no advanced caching or CDN usage is evident from the provided data.
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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