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Security report for adsystem.eu

adSYSTEM · Technology · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

52/100

Risk levelMedium

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

adSYSTEM is a Czech-based technology company specializing in the design and implementation of internet e-shops, websites, CMS, and CRM systems with rental options. The company targets businesses and organizations seeking integrated administration and publication systems for internet and intranet applications. Their market position is niche-focused within the Czech Republic, offering a proprietary CMS platform and related modules such as e-shop management, CRM, cash register integration, and SEO optimization. The website content is professional, well-structured, and optimized for mobile devices, reflecting a good level of digital maturity. Technically, the website employs standard web technologies including HTML5, CSS3, and jQuery 3.2.1, hosted by a reputable Czech registrar and hosting provider (INTERNET CZ, a.s.). The site enforces HTTPS with strong SSL configuration and basic security headers, though there is room for improvement by adding advanced security headers and publishing a security policy. The cookie consent mechanism and privacy policy indicate awareness of GDPR compliance, enhancing the site's privacy posture. From a security perspective, the site demonstrates good practices such as secure login forms and no visible vulnerabilities or exposed sensitive data. However, the absence of a formal security policy, incident response contacts, and vulnerability disclosure mechanisms suggests areas for maturity growth. Overall, the risk level is low with no critical issues detected. Strategically, adSYSTEM should focus on enhancing security transparency, expanding accessibility features, and maintaining up-to-date technical components to sustain trust and compliance. The website's professional presentation and clear contact information support strong business credibility within its market segment.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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 adsystem.eu

This scan found 20 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
65
Security headers
20
Email security
80
DNS health
85
Network security
20
GDPR outside view
40
Average
52

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 adsystem.eu, from OffSeq Breach.

No leaked records found

Breach holds no records for adsystem.eu 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

adSYSTEM operates as a small technology company providing integrated software solutions for e-commerce, content management, and customer relationship management primarily in the Czech market. Their business model centers on SaaS and custom software development with a focus on responsive design and SEO optimization. The company leverages a proprietary CMS platform to deliver modular services including e-shop management, CRM, cash register integration compliant with Czech EET regulations, and smart data storage. Their target customers are businesses requiring comprehensive internet and intranet application management tools. The presence of customer references and a clear contact channel indicates a stable client base and operational transparency. The company appears to maintain a focused partnership ecosystem with related Czech domains but lacks broader international affiliations. Growth opportunities may lie in expanding security certifications and enhancing marketing transparency.

Security posture

The website exhibits a mature security posture with HTTPS enforced and no detected vulnerabilities or exposed sensitive data. Basic security headers are present, though advanced headers like Content-Security-Policy and X-Frame-Options are missing, representing an area for improvement. The login form is secured, and cookie consent mechanisms align with GDPR requirements. However, the absence of a published security policy, incident response contacts, and vulnerability disclosure channels limits transparency and readiness for security incidents. No malware or phishing indicators were found. Overall, the security culture appears adequate for a small technology provider but would benefit from formalizing security governance and incident response processes to enhance resilience and trust.

Recommendations

  1. Implement advanced HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen defense against common web attacks.
  2. Publish a dedicated security policy page outlining security practices, data protection measures, and incident response procedures to improve transparency and compliance.
  3. Establish and publicize a vulnerability disclosure program, including a security.txt file, to encourage responsible reporting of security issues.
  4. Enhance website accessibility features to comply with recognized standards and improve user experience for all visitors.
  5. Regularly update all JavaScript libraries and dependencies to the latest secure versions to mitigate risks from known vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
adSYSTEM
Description
Návrhy a realizace internetových e-shopů, webů, www stránek, redakční systém CMS, CRM s možností pronájmu.
Key services
E-shop management, CMS publishing system, CRM intranet system, Cash register with EET integration, Smart data storage, Mobile responsive design, SEO optimization
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, jQuery 3.2.1
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected
  • Secure login form present

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is in Czech language targeting Czech businesses.
  3. Site uses proprietary CMS named adSYSTEM.
  4. Contact information is clearly provided including phone and email.
  5. Cookie consent mechanism is implemented and GDPR compliance is indicated.
  6. No social media links detected in the provided content.
  7. No explicit security policy or incident response information found.
  8. No vulnerability disclosure or security.txt file found.
  9. Site uses HTTPS with good SSL configuration.
  10. No advertising or tracking scripts detected.
Technical notes

Notes

The website is built on a proprietary CMS platform named adSYSTEM, utilizing standard web technologies such as HTML5, CSS3, and jQuery 3.2.1. The hosting is provided by INTERNET CZ, a.s., a reputable Czech registrar and hosting provider. The site demonstrates moderate performance with responsive design optimized for PC, tablet, and mobile devices. SEO optimization is well integrated with appropriate meta tags and structured navigation. The technical implementation is solid but could benefit from modernization by adopting newer JavaScript frameworks and enhancing accessibility compliance. No critical technical debt or performance bottlenecks were detected, indicating a stable infrastructure suitable for the company's business needs.
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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