Skip to main content

Security report for o2universum.cz

Bestsport, a.s. · Hospitality · Czech Republic

Medium risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

75/100

Risk levelMedium

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

O2 universum is a large multifunctional congress and event venue located in Prague, Czech Republic, operated by Bestsport, a.s., a member of the PPF group. The venue offers extensive facilities for conferences, cultural, sports, and corporate events with a capacity of up to 10,000 people. The website presents a professional and comprehensive digital presence, targeting both the general public and corporate clients seeking event space rental and event hosting services. The business is well positioned in the hospitality sector with strong partnerships and a clear market presence.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

2 findings rated critical or high. Fix these first.

  1. 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"

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching o2universum.cz

This scan found 21 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. See sample alerts.

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
62
Security headers
65
Email security
60
DNS health
80
Network security
100
GDPR outside view
83
Average
75

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 o2universum.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for o2universum.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

The company leverages its affiliation with the PPF group to maintain a strong market position in the event venue sector. Its business model focuses on venue rental, event organization, and catering services. The website highlights a broad event program and premium services tailored to client needs. Partnerships with major brands and ticketing platforms enhance its ecosystem. The target audience includes event attendees, corporate clients, and cultural event organizers. The digital presence supports growth through clear navigation, multilingual support, and active social media engagement.

Security posture

The website employs HTTPS with a valid SSL certificate ensuring secure communications. It uses cookie consent mechanisms compliant with GDPR, including opt-in for personalized ads and analytics. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of explicit security headers like Content-Security-Policy and X-Frame-Options suggests room for improvement. No public incident response or security policy pages were found, which could enhance transparency and trust. Overall, the security posture is solid but could benefit from additional hardening and documentation.

Recommendations

  1. Implement and enforce security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Publish a clear security policy and incident response contact information to improve transparency and preparedness.
  3. Enhance accessibility features to meet compliance standards and improve user experience for all visitors.
  4. Consider adding visible company contact emails and phone numbers to improve business credibility and user trust.
  5. Regularly audit third-party scripts and libraries to ensure no vulnerabilities or deprecated components are in use.

Contact details published on the site

Addresses
Legal name
Bestsport, a.s.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Bestsport, a.s.
Description
Unique and multifunctional venue in Prague for the most memorable experiences. A program full of culture and sports, with the option to of renting it for your own event.
Key services
Venue rental for conferences, congresses, cultural and sports events, Event organization and catering services
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress 6.3.5, jQuery, Tiny Slider, Splide.js, Magnific Popup, Google Tag Manager, Google Analytics, Cookie Consent Script
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Adsense
Tracking pixels
Facebook Pixel
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected
  2. Comprehensive cookie consent and privacy policy implemented
  3. No direct contact emails or phone numbers found on main page
  4. WHOIS data unavailable, likely due to privacy protection
  5. Strong branding and partnership ecosystem visible
  6. Use of modern web technologies and analytics tools
  7. No security headers detected in HTML source, recommend review
  8. No visible vulnerabilities or exposed sensitive data
Technical notes

Notes

The website is built on WordPress 6.3.5 with a modern JavaScript stack including jQuery, Tiny Slider, and Splide.js for UI components. Google Tag Manager and Google Analytics are used for tracking and marketing analytics. The site is mobile optimized with responsive design and uses lazy loading for images to improve performance. Cookie consent is implemented with a robust opt-in mechanism supporting multiple languages. Hosting provider details are not explicit, but the site uses HTTPS and external analytics and marketing services. Performance is moderate with good SEO and accessibility basics, though some improvements are possible in accessibility and security headers.
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

Earlier scans of this domain

  1. 77/100Low27 findingsView report
Reviews of this site

Share your experience with o2universum.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 o2universum.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.