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Security report for letnky.cz

Letenky Levné Lety · Transportation · Czech Republic

High risk. 10 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

Letenky Levné Lety is a Czech-based online travel affiliate platform specializing in offering cheap flight tickets, hotel bookings, car rentals, and travel insurance. The website targets budget-conscious travelers primarily in the Czech Republic, providing access to discounted and last-minute flight deals from over 800 companies. The business model relies on affiliate marketing partnerships with various travel providers, as evidenced by multiple partner domains linked in the footer. The site was registered recently in 2022, consistent with a small startup or niche travel service provider. Technically, the website is built on WordPress 6.8.2 with Bootstrap and jQuery, ensuring a modern and responsive user experience. The site includes third-party affiliate widgets and uses HTTPS for secure connections. However, there is a lack of advanced security headers and no visible privacy or terms of service pages, which are important for compliance and trust. The cookie consent mechanism is present and functional, indicating some level of GDPR awareness. From a security perspective, the site enforces HTTPS and does not expose sensitive data or vulnerable libraries in the HTML. However, the absence of security headers and incident response contact information suggests room for improvement in security posture. No WAF or blocking mechanisms were detected, and the site content is fully accessible. No adult or questionable content was found, making the site safe for general audiences. Overall, Letenky Levné Lety presents as a legitimate small travel affiliate business with a good technical foundation but lacking in formal privacy, security policies, and contact transparency. Strategic improvements in these areas would enhance trust and compliance, supporting business growth and user confidence.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

  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 letnky.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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

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
85
Security headers
15
Email security
60
DNS health
75
Network security
0
GDPR outside view
25
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 website operates in the transportation and hospitality sectors, focusing on affordable travel solutions for Czech customers. Its competitive advantage lies in aggregating discounted flight deals and vacation packages from a broad network of over 800 providers. The business model is affiliate marketing, generating revenue through referrals and bookings. The target customers are budget travelers and weekend vacationers. The site demonstrates consistent branding and good content quality, with testimonials and partner links enhancing credibility. The domain age and WHOIS data align with a recently established small business. The partnership ecosystem includes multiple related travel deal sites, indicating a networked approach to market reach. Growth potential depends on expanding content, improving compliance, and enhancing direct customer engagement.

Security posture

The website has a moderate security maturity level. HTTPS is properly implemented, ensuring encrypted communication. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security reduces defense-in-depth. There is no visible security policy or incident response contact information, which limits transparency and readiness for security incidents. The cookie consent mechanism is present, supporting GDPR compliance to some extent. No vulnerability disclosure or security.txt files were found. Overall, the site is functional and reasonably secure but would benefit from enhanced security controls and formal policies to improve resilience and compliance.

Recommendations

  1. Implement comprehensive privacy policy and terms of service pages accessible from the homepage.
  2. Add security headers including Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and Strict-Transport-Security.
  3. Publish a security.txt file and provide clear incident response contact information.
  4. Enhance cookie consent mechanism with detailed information on data collection and retention.
  5. Regularly audit third-party scripts and plugins for vulnerabilities and update them promptly.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Letenky Levné Lety
Description
Online platform offering cheap flight tickets, hotel reservations, car rentals, and travel insurance. Provides access to discounted and last-minute flight deals from over 800 companies, as well as weekend stays and holiday packages.
Key services
Flight ticket booking, Hotel reservations, Car rentals, Travel insurance, Weekend and holiday stay packages
Content quality
good
Branding
consistent

Technology

Stack
WordPress 6.8.2, Bootstrap CSS, jQuery 3.7.1, 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
75/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

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 travel affiliate platform targeting Czech customers.
  2. No explicit privacy or terms of service pages found.
  3. Cookie consent banner is present and functional.
  4. No direct contact information or forms found on the homepage.
  5. Uses WordPress CMS with modern frontend technologies.
  6. No visible security headers detected in provided data.
  7. No adult or questionable content detected.
  8. Multiple partner domains linked in footer for travel deals.
  9. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website uses a modern WordPress CMS version 6.8.2 with Bootstrap for responsive design and jQuery for client-side scripting. It integrates third-party affiliate widgets from Pelikan.sk for flight deals. The site loads external fonts from Google Fonts and uses Font Awesome for icons. The hosting provider is not explicitly identified but the registrar is REG-WEBGLOBE with Czech name servers, consistent with the target market. Performance is moderate with no major issues detected. Mobile optimization is good due to Bootstrap usage. SEO is supported by proper meta tags and structured navigation. Accessibility is basic but could be improved with ARIA roles and better semantic markup. Overall, the technical infrastructure is solid for a small affiliate travel site but could benefit from enhanced security and compliance features.
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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