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Security report for sdovolena.cz

Seznam.cz, a.s. · Hospitality · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

58/100

Risk levelMedium

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

Sdovolena.cz is an online travel comparison and booking platform operated under the reputable Czech internet company Seznam.cz, a.s. The website offers a comprehensive search and filtering system for holiday packages, including last minute deals, across a wide range of destinations. It aggregates offers from multiple travel agencies, providing users with detailed information about travel dates, prices, accommodations, and transport options. The site targets Czech-speaking travelers looking for convenient holiday planning solutions. Technically, the site employs modern JavaScript frameworks, integrates with Seznam's login services, and uses analytics and error tracking tools such as Gemius and Sentry. The website is served over HTTPS, ensuring secure data transmission. Privacy and cookie policies are clearly linked and indicate GDPR compliance. However, no direct company contact emails or phone numbers are displayed on the main page, with contact facilitated via forms and help pages. The WHOIS data for the domain is unavailable, which limits domain registration trust analysis, but the affiliation with Seznam.cz strongly supports legitimacy. Overall, the site presents a professional, secure, and user-friendly platform for travel booking in the Czech market.

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

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 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 sdovolena.cz

This scan found 27 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
62
Security headers
45
Email security
60
DNS health
55
Network security
100
GDPR outside view
25
Average
58

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 sdovolena.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for sdovolena.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

Sdovolena.cz operates in the hospitality sector as a travel aggregator and booking facilitator. Its business model revolves around providing users with a centralized platform to compare travel offers from various agencies, likely generating revenue through referral commissions or advertising. The site benefits from the strong brand and market presence of Seznam.cz, a leading Czech internet company, which enhances user trust and market penetration. The platform targets a broad audience of Czech travelers interested in diverse holiday types, including beach vacations, ski trips, and city breaks. The presence of multiple travel agencies and detailed filtering options indicates a mature ecosystem and competitive positioning. The site also integrates advertising via Sklik, supporting monetization. Growth opportunities may include expanding partnerships, enhancing mobile experience, and increasing direct booking capabilities.

Security posture

The website demonstrates a solid security posture with HTTPS enforced and use of modern security monitoring tools like Sentry. While explicit security headers such as Content-Security-Policy and X-Frame-Options are not evident in the HTML content, the site does not expose sensitive data or show signs of vulnerabilities. The absence of a published security policy or incident response contact limits transparency in security governance. No vulnerability disclosure or security.txt files were found, which could be improved to foster responsible vulnerability reporting. Privacy compliance is well addressed through clear privacy and cookie policies with consent mechanisms. Overall, the security maturity is good but could benefit from enhanced header implementation and published security governance documentation.

Recommendations

  1. Implement and verify comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen browser security.
  2. Publish a clear security policy and incident response contact information to improve transparency and trust.
  3. Introduce a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  4. Enhance accessibility features to meet higher compliance standards and improve user experience for all users.
  5. Consider providing direct company contact emails and phone numbers on the website to improve business credibility and user support.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Seznam.cz, a.s.
Description
Porovnejte ceny zájezdů od různých cestovních kanceláří. Vyberte tu nejlepší nabídku a vyrazte na vysněnou dovolenou.
Key services
Travel package search and comparison, Booking links to travel agencies, Travel agency directory
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, JAK framework, Gemius analytics, Sentry error tracking, Seznam login API
Frameworks
JAK (JavaScript Application Kit)
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
  • Use of Sentry for error monitoring

Analytics and tracking

Services
Gemius
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Sklik
Tracking pixels
Gemius
Marketing tools
Sklik, Gemius, Sentry
Transparency
good

Site quality

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

Key observations

  1. Website is a travel comparison and booking platform targeting Czech users.
  2. Content is rich with travel offers, search filters, and travel agency listings.
  3. No WHOIS data available, possibly due to domain privacy or registry restrictions.
  4. Site uses HTTPS and modern JavaScript frameworks.
  5. Privacy and cookie policies are present and linked to Seznam.cz's main help pages.
  6. No direct company contact emails or phone numbers found on the main page; contact is via forms and help pages.
  7. Advertising and tracking are implemented via Sklik and Gemius.
  8. No security policy or incident response information explicitly found.
  9. No vulnerability disclosure or security.txt file detected.
  10. No adult or explicit content detected; site is safe for general audiences.
Technical notes

Notes

The website uses a modern JavaScript framework (JAK) and integrates multiple third-party services including Seznam login API, Gemius analytics, and Sentry error tracking. The site is served over HTTPS with good SSL configuration. Performance appears moderate with some optimization potential. The site is mobile optimized with good responsive design. SEO is supported by proper meta tags and structured navigation. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. The site uses multiple external domains for analytics, advertising, and login services, all related to Seznam.cz or trusted partners. Technical risks are minimal but monitoring third-party scripts for vulnerabilities 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

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