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Security report for deltareisen.cz

Delta Reisen s.r.o. · Hospitality · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

61/100

Risk levelMedium

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

Delta Reisen s.r.o. is a Czech travel agency specializing in offering vacations through German and Austrian travel agencies, providing a wide range of travel packages with over one million available dates. The company targets Czech customers seeking high-quality travel experiences with trusted German and Austrian partners. Their business model focuses on travel package brokerage, online booking, and customer support with a medium-sized market presence since 2016. The website reflects a professional and consistent brand image with good content quality and customer trust signals such as reviews and certifications. Technically, the website uses a modern tech stack including jQuery, Bootstrap, Google Tag Manager, and Matomo analytics, integrated with a specialized travel system (CeSYS). The site is mobile optimized and performs moderately well, with good SEO and accessibility basics. Security posture is solid with HTTPS enforcement and cookie consent mechanisms, though some security headers are not explicitly detected. No WHOIS data is available, which impacts transparency and trust. Security-wise, the site shows good practices such as reCAPTCHA on forms and no exposed sensitive data, but lacks a public security policy or incident response information. Privacy compliance is good with GDPR-aligned cookie consent and privacy notices. Overall, the risk is moderate with recommendations to improve WHOIS transparency, security headers, and incident response disclosures. Strategically, Delta Reisen should focus on enhancing security transparency, maintaining up-to-date technology, and expanding trust signals to strengthen market position and customer 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

8 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

  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 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"

    • 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 deltareisen.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

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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
72
Security headers
15
Email security
75
DNS health
80
Network security
100
GDPR outside view
25
Average
61

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

Delta Reisen operates in the hospitality and transportation sectors as a travel agency intermediary for German and Austrian travel providers. Their competitive advantage lies in specialization and extensive partnerships with 38 German travel agencies, offering a large inventory of travel dates and destinations. Revenue streams likely include commissions from bookings and ancillary services such as insurance and flights. The target customer segment is Czech travelers seeking reliable and diverse vacation options. Growth indicators include multiple related domains and active social media presence. The partnership ecosystem includes well-known travel brands and certification bodies, supporting credibility. Operationally, the company leverages a custom travel system (CeSYS) for bookings and customer management.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and cookie consent implemented, reflecting GDPR compliance. Use of Google reCAPTCHA on newsletter forms reduces spam risk. However, the absence of explicit security headers such as Content-Security-Policy and X-Frame-Options is a gap that could expose the site to certain web attacks. No public incident response or vulnerability disclosure policies are found, which limits transparency and preparedness. The lack of WHOIS data reduces domain trustworthiness. Overall, the security maturity is good but can be improved by adopting comprehensive security headers, publishing security policies, and enhancing domain registration transparency.

Recommendations

  1. Implement comprehensive security headers including CSP, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.
  2. Publish a clear security policy and incident response contact information on the website.
  3. Investigate and resolve the missing WHOIS data to improve domain transparency and trust.
  4. Regularly update and audit third-party libraries and scripts to mitigate vulnerabilities.
  5. Enhance accessibility features to improve compliance and user experience for all users.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Delta Reisen s.r.o.
Description
Cestovní kancelář specializující se na dovolené s německými a rakouskými cestovními kancelářemi, nabízí více než 1 000 000 termínů zájezdů od 38 německých CK.
Key services
Prodej zájezdů od německých a rakouských CK, Online rezervace s platbou kartou, Cestovní pojištění, Letenky, Dovolená na míru
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, Bootstrap, Google Tag Manager, Google Analytics, Facebook Pixel, Matomo, Mailchimp, CeSYS travel system
Frameworks
Bootstrap
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • Google reCAPTCHA on newsletter form
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads, Facebook Ads
Tracking pixels
Facebook Pixel, Matomo
Marketing tools
Mailchimp, Ehub Click
Transparency
good

Site quality

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

Key observations

  1. Website is a professional travel agency specializing in German and Austrian travel packages.
  2. Content is in Czech language with good localization and currency switching.
  3. Multiple trust signals including customer reviews and certifications.
  4. No WHOIS data available, which is a concern for domain transparency.
  5. Cookie consent and privacy mechanisms are implemented.
  6. No security policy or incident response info publicly available.
  7. No signs of adult or inappropriate content.
  8. Use of multiple third-party analytics and marketing tools.
  9. Website is mobile optimized and uses modern web technologies.
Technical notes

Notes

The website is built on a custom travel agency platform (CeSYS) integrated with modern JavaScript libraries such as jQuery and Bootstrap for UI components. It uses Google Tag Manager for analytics and marketing tag management, Matomo for additional analytics, and Facebook Pixel for advertising tracking. The site loads multiple external scripts asynchronously to optimize performance. The presence of lazy loading for images and responsive design indicates attention to performance and mobile optimization. Hosting details are not explicitly found, but CDN domains suggest use of content delivery networks for static assets. Overall, the technical infrastructure is solid with room for improvement in security headers and accessibility.
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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