Skip to main content

Security report for onlinehq.cz

Other · Czech Republic

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

Security score

62/100

Risk levelMedium

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

RogerOnline.cz is an online reservation system tailored for sports clubs, primarily tennis clubs, in the Czech Republic. The platform provides a centralized listing of numerous sports clubs with their contact details, addresses, and links to their official websites, facilitating court and facility bookings. The website targets sports clubs and their members, offering a niche service that supports club management and user convenience. The business model revolves around providing an online booking infrastructure for sports facilities, positioning itself as a regional service with a moderate market presence.

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 onlinehq.cz

This scan found 22 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
67
Security headers
15
Email security
80
DNS health
85
Network security
100
GDPR outside view
25
Average
62

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 onlinehq.cz, from OffSeq Breach.

Total records
44
Employees
0
Customers
44
Third parties
0
Weak passwords
39%

2 subdomains 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 onlinehq.cz.

Select it in the checkout above.

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

Open in Breach(opens in a new tab)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

The platform serves a specialized market segment focused on sports club reservations, mainly tennis clubs across the Czech Republic and some neighboring regions. It leverages partnerships with multiple clubs, as evidenced by the extensive list of linked club websites. The business benefits from a broad network of clubs but lacks visible monetization details or advanced marketing tools. The absence of privacy and cookie policies may indicate a smaller operational scale or limited regulatory compliance focus. The service appears to be a small-sized entity with a straightforward business model centered on reservation facilitation.

Security posture

The website lacks visible security headers and does not present privacy or cookie policies, indicating limited security and privacy compliance maturity. No HTTPS or SSL configuration details were available from the provided data, which is a critical gap. The absence of incident response contacts or vulnerability disclosure mechanisms further suggests a basic security posture. However, no explicit vulnerabilities or exposed sensitive data were detected in the HTML content. The platform would benefit from implementing standard security best practices, including HTTPS enforcement, security headers, and privacy compliance measures.

Recommendations

  1. Implement HTTPS with a strong SSL/TLS configuration to secure user data and improve trust.
  2. Add comprehensive privacy and cookie policies to comply with GDPR and inform users about data handling.
  3. Deploy security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  4. Establish clear incident response and vulnerability disclosure contacts to enhance security transparency.
  5. Improve accessibility and SEO by adding ARIA roles, meta tags, and structured data to increase reach and usability.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Rezervační systém sportovních klubů (Reservation system for sports clubs)
Key services
Online court and facility reservation, Club contact information listing
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, SVG (inline background), Responsive design
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
40/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a reservation platform for sports clubs primarily in Czech Republic.
  2. WHOIS data is unavailable, possibly due to privacy protection or domain registration issues.
  3. No privacy, cookie, or terms of service policies found on the site.
  4. Contact information for many clubs is publicly listed with emails and phone numbers.
  5. No security headers or advanced security features detected in the HTML content.
  6. No analytics or tracking scripts detected, indicating minimal user tracking.
  7. Website design is modern, responsive, and user-friendly.
  8. No signs of adult or unsafe content.
  9. No forms detected on the main page; reservation likely handled on subpages.
  10. External links mostly point to legitimate club websites and map services.
Technical notes

Notes

The website uses modern HTML5 and CSS3 with responsive design techniques, ensuring good mobile optimization and user experience. The tech stack is simple, with no detected CMS or JavaScript frameworks, which reduces complexity but may limit scalability. Performance is moderate, with no heavy scripts or tracking services detected. The site lacks advanced SEO and accessibility features, which could be improved to enhance visibility and compliance. Hosting provider and infrastructure details are not available, limiting deeper technical assessment.
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

Reviews of this site

Share your experience with onlinehq.cz. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review onlinehq.cz.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.