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Security report for postshop.cz

Česká pošta, s.p. · Retail · Czech Republic

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

Security score

65/100

Risk levelMedium

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

Česká pošta, s.p. operates the official e-commerce platform postshop.cz, offering postal supplies such as envelopes, cardboard boxes, postal vouchers, and data security products including chip cards and readers. The website targets both general consumers and businesses within the Czech Republic, positioning itself as a trusted retail channel for postal and related products. The business is well-established with a domain age dating back to 2001, reflecting a mature market presence. Technically, the website is built on ASP.NET Web Forms with a frontend leveraging jQuery and various slider plugins. Hosting and domain registration are managed by Active24, a known provider. The site performs moderately well with basic mobile optimization and SEO practices. Google Tag Manager is used for analytics, indicating some level of digital maturity. From a security perspective, the site uses HTTPS but lacks visible security headers such as Content-Security-Policy or X-Frame-Options. There is no cookie consent mechanism, which is a compliance gap under GDPR. No direct contact emails or phone numbers are present on the main page, limiting immediate user support access. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the website is professional and trustworthy with good content quality and business credibility. However, improvements in privacy compliance and security best practices are recommended to enhance user trust and regulatory adherence.

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

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

    • 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

  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 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 postshop.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

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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
77
Security headers
45
Email security
72
DNS health
85
Network security
100
GDPR outside view
10
Average
65

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 postshop.cz, from OffSeq Breach.

Total records
63
Employees
0
Customers
63
Third parties
0
Weak passwords
3%

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 postshop.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

The website serves as a direct retail channel for Česká pošta, s.p., leveraging its official brand to sell postal and data security products. Its market positioning is strong as the official postal service provider in the Czech Republic. The business model is straightforward e-commerce, targeting both individual consumers and corporate clients needing postal supplies and secure authentication devices. The product range includes branded merchandise, postal packaging, and qualified electronic signature tools, indicating diversification within postal and digital security sectors. The presence of Google Tag Manager suggests ongoing efforts to monitor user behavior and optimize marketing. The lack of direct contact information on the landing page may indicate a focus on self-service e-commerce rather than direct sales support. No evident partnerships or subsidiaries are linked from the site, suggesting a centralized business structure.

Security posture

The website demonstrates a basic to moderate security posture. HTTPS is enforced, ensuring encrypted communication. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection reduces defense-in-depth. The site uses legacy ASP.NET Web Forms technology, which requires careful patching to avoid vulnerabilities. No cookie consent or privacy banners are present, which is a compliance risk under GDPR. Forms use POST methods but no visible anti-CSRF tokens or advanced input validation mechanisms were detected in the HTML source. Google Tag Manager is used, which may introduce third-party tracking risks if not properly configured. Overall, the site is functional and secure at a basic level but would benefit from enhanced security headers, privacy compliance mechanisms, and modernized technology stack.

Recommendations

  1. Implement a comprehensive cookie consent banner to comply with GDPR and improve user transparency.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to strengthen browser security.
  3. Enhance accessibility features to improve usability for all users, including those with disabilities.
  4. Provide clear and accessible contact information including support emails and phone numbers to improve customer trust and service.
  5. Modernize the technology stack by migrating from legacy ASP.NET Web Forms to a more current framework to reduce technical debt and security risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Česká pošta, s.p.
Description
E-shop České pošty nabízí obalový materiál, poštovní sortiment jako dopisní obálky, kartonové krabice, tubusy a zabezpečení dat.
Key services
Sale of postal envelopes, Cardboard boxes, Postal vouchers, Data security products (chip cards, readers, tokens), Merchandise with Czech Post branding
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, Nivo Slider, PrettyPhoto, Sudo Slider, ASP.NET Web Forms
Frameworks
ASP.NET
Platforms
Windows Server (implied by ASP.NET)
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
65/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data in HTML
  • Use of POST method for forms

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is an official e-commerce platform for Česká pošta, s.p.
  2. Content is in Czech language targeting Czech customers.
  3. No privacy or cookie policy banner detected, which is a compliance gap.
  4. No direct contact emails or phone numbers found on the main page.
  5. Uses standard web technologies with some legacy ASP.NET Web Forms.
  6. Includes Google Tag Manager for analytics and tracking.
  7. No visible security headers in HTML source; potential improvement area.
  8. Product catalog is detailed with images and descriptions.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built on ASP.NET Web Forms, a mature but aging technology framework. The frontend uses jQuery and several slider plugins for UI components. Hosting and domain registration are managed by Active24, a reputable provider. The site loads with moderate speed and basic mobile optimization. SEO practices are basic but present, including meta tags and structured navigation. No CMS is detected, indicating a custom-built solution. Google Tag Manager is integrated for analytics and marketing tracking. The site lacks modern security headers and cookie consent mechanisms. The HTML is valid and well-structured but could benefit from modernization and improved accessibility compliance.
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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