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Security report for sphere.cz

Sphere · Retail · Czech Republic

Medium risk. 9 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

Sphere.cz operates as the largest loyalty program platform in the Czech Republic and Slovakia, offering consumers a wide network of partners where they can collect points, receive discounts, and redeem rewards. The website is professionally designed using WordPress and Elementor, with a focus on retail consumers interested in maximizing shopping benefits. The platform supports multiple languages and integrates various marketing and analytics tools such as Facebook Pixel, Hotjar, and Smartlook to optimize user engagement and campaign effectiveness. Despite the lack of WHOIS data transparency, the website presents a legitimate and established business presence in the retail loyalty sector.

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

9 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 sphere.cz

This scan found 24 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
72
Security headers
15
Email security
85
DNS health
85
Network security
100
GDPR outside view
10
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

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 sphere.cz, from OffSeq Breach.

Total records
812
Employees
0
Customers
812
Third parties
0
Weak passwords
13%

6 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 sphere.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

Sphere.cz holds a strong market position as a leading loyalty program in the Czech and Slovak markets, targeting retail consumers who seek discounts and rewards. The business model revolves around partnerships with numerous retailers and service providers, enabling a broad catalog of benefits. The website's content and promotional campaigns indicate active engagement with customers and partners, leveraging digital marketing tools to drive growth. The absence of explicit privacy and cookie policies suggests room for compliance improvement. The partnership ecosystem includes localized domains and promotional partners, enhancing market reach and customer value.

Security posture

The website demonstrates a solid security posture with HTTPS enforced and no visible exposure of sensitive data. It employs reputable third-party analytics and tracking services, though it lacks explicit security headers and formal security policies. The absence of a security.txt file or incident response contacts indicates limited transparency in vulnerability management. Privacy compliance is minimal, with no clear cookie consent mechanisms or privacy policy pages detected. Overall, the security maturity is moderate, with recommendations to enhance header configurations, privacy disclosures, and incident response readiness to strengthen trust and compliance.

Recommendations

  1. Implement comprehensive privacy and cookie policies with explicit GDPR compliance and user consent mechanisms.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to enhance protection against common web attacks.
  3. Publish a security.txt file and provide clear contact channels for vulnerability reporting and incident response.
  4. Regularly audit and update third-party scripts to mitigate risks from external dependencies.
  5. Enhance transparency by providing detailed business contact information and company registration details on the website.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sphere
Description
Největší věrnostní program v ČR a SR
Key services
Loyalty card activation, Points collection and redemption, Discounts at partner stores, Special promotions and campaigns
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Elementor, Yoast SEO, jQuery, FontAwesome, Google Fonts, Facebook Pixel, Ecomail tracking, Hotjar, Smartlook
Frameworks
Elementor
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of security and tracking scripts from reputable sources

Analytics and tracking

Services
Hotjar, Smartlook, Facebook Pixel, Ecomail
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, Ecomail tracking, Hotjar, Smartlook
Marketing tools
Yoast SEO, Ecomail, Facebook Pixel, Hotjar, Smartlook
Transparency
basic

Site quality

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

Key observations

  1. Website is a loyalty program platform for Czech and Slovak markets.
  2. Content is in Czech language with alternate Slovak and English versions.
  3. No WHOIS data available, which is unusual and reduces transparency.
  4. No explicit privacy, cookie, or terms of service pages detected in provided content.
  5. Uses multiple tracking and analytics services including Facebook Pixel, Hotjar, Smartlook, and Ecomail.
  6. Website is built on WordPress with Elementor and Yoast SEO plugins.
  7. No contact emails or phone numbers explicitly found in the provided HTML snippet.
  8. No security.txt or vulnerability disclosure information found.
  9. No explicit security policies or incident response contacts found.
  10. Website uses HTTPS with good SSL configuration.
Technical notes

Notes

The website is built on a modern WordPress CMS platform using Elementor for page building and Yoast SEO for search engine optimization. It integrates multiple analytics and marketing tools including Facebook Pixel, Hotjar, Smartlook, and Ecomail, indicating a mature digital marketing infrastructure. The site is mobile-optimized with responsive design and good navigation clarity. Performance is moderate, with potential improvements in accessibility and SEO through enhanced metadata and structured data usage. The lack of WHOIS data and some missing compliance pages represent technical and governance gaps that should be addressed to improve overall site trustworthiness and regulatory adherence.
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. 61/100Medium33 findingsView report
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