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Security report for mujlet.cz

FLY UNITED s.r.o. · Transportation · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

63/100

Risk levelMedium

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

FLY UNITED s.r.o. operates the website mujlet.cz, a professional travel booking platform primarily serving the Czech market. The company specializes in corporate travel management and general travel services including flight reservations, hotel bookings, car rentals, and travel insurance. Established in 2005 and holding ISO 9001:2008 certification, the company presents itself as a reputable and established player in the transportation sector. The website supports Czech and English languages and targets both corporate clients and general travelers. Technically, the website uses a custom travel booking system named Symphony, built with AngularJS and enhanced by common JavaScript libraries such as jQuery and Moment.js. It integrates Google Analytics and Google Tag Manager for tracking and marketing purposes. The site is hosted likely via Active24, consistent with the WHOIS data. Performance is moderate with basic mobile optimization and accessibility features. From a security perspective, the site enforces HTTPS and uses secure login forms but lacks advanced security headers and explicit security policies. No vulnerabilities or exposed sensitive data were detected. Privacy compliance is basic, with no visible cookie consent mechanism and limited GDPR indicators. Contact information and business legitimacy are well presented, enhancing trustworthiness. Overall, the website is professionally designed and functional with good business credibility but could improve in privacy compliance and security best practices 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

7 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

    • 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

      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

  2. 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';…

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

Keep watching mujlet.cz

This scan found 23 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.

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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
62
Security headers
60
Email security
70
DNS health
75
Network security
100
GDPR outside view
10
Average
63

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 mujlet.cz, from OffSeq Breach.

Total records
1
Employees
0
Customers
1
Third parties
0
Weak passwords
0%

1 subdomain affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for mujlet.cz.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

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Technical appendix

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

Business context

Business profile

FLY UNITED s.r.o. holds a solid market position in the Czech travel industry, focusing on corporate travel services and general travel bookings. The business model revolves around providing comprehensive travel solutions including flights, hotels, insurance, and car rentals. Revenue streams likely include commissions from bookings and service fees. The company targets corporate clients requiring professional travel management and individual travelers seeking online booking convenience. Partnerships with Booking.com and other travel projects indicate a collaborative ecosystem. The company demonstrates growth and stability with a domain age of over 17 years and ISO certification, supporting its competitive advantage in quality and reliability.

Security posture

The website exhibits a moderate security maturity level with HTTPS enforced and secure form handling. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options reduces protection against common web attacks. No incident response or security policy information is published, which limits transparency and preparedness perception. The use of up-to-date libraries is unclear, and no vulnerability disclosures or security.txt files are present. Privacy compliance is minimal, lacking cookie consent and detailed GDPR adherence indicators. Overall, the security posture is adequate for business operations but requires enhancements to meet higher compliance and security standards.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to mitigate common web vulnerabilities.
  2. Deploy a visible cookie consent banner and update privacy policy to explicitly address GDPR compliance and user data rights.
  3. Publish a security policy and incident response contact information to improve transparency and readiness.
  4. Regularly audit and update third-party libraries and scripts to avoid vulnerabilities.
  5. Enhance mobile optimization and accessibility to improve user experience and compliance with accessibility standards.

Contact details published on the site

Addresses
Legal name
FLY UNITED s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
FLY UNITED s.r.o.
Description
Professional travel services for corporate clients including business trip management and travel agency services.
Key services
Flight reservations, Online check-in, Hotel bookings, Travel insurance, Car rentals, Airport parking
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Google Analytics, Google Tag Manager, Moment.js, Daterangepicker, bwip-js (barcode generation)
Frameworks
AngularJS (indicated by ng-app attribute)
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Secure login forms
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is a professional travel booking platform operated by FLY UNITED s.r.o.
  2. Content is primarily in Czech language with English option available.
  3. Multiple offices with full contact details provided.
  4. Use of standard tracking and analytics tools without aggressive tracking.
  5. No signs of malware, phishing, or suspicious activity.
  6. No explicit privacy or cookie consent banners detected.
  7. ISO 9001:2008 certification indicates quality management adherence.
  8. Website uses HTTPS with no visible security warnings.
Technical notes

Notes

The website is built on a custom travel booking platform named Symphony, utilizing AngularJS and common JavaScript libraries such as jQuery, Moment.js, and daterangepicker. It integrates Google Analytics and Google Tag Manager for analytics and marketing. The site is hosted with Active24, consistent with WHOIS data. Performance is moderate with basic mobile responsiveness and accessibility. SEO optimization is basic with meta tags present but no advanced structured data like JSON-LD or Open Graph tags detected. The technical stack is stable but could benefit from modernization and enhanced 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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