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Security report for highlighter.eu

centropen · Retail · N/a

High risk. 11 critical or high findings in GDPR outside view, Email security and 3 other checks.

Security score

40/100

Risk levelHigh

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

The website www.highlighter.eu represents the product line of highlighters under the centropen brand, focusing on style and color variety. It targets general consumers interested in stationery products. The site features modern web technologies including Lottie animations and Adobe Typekit fonts, providing a visually engaging experience. However, the technical infrastructure lacks visible CMS or hosting provider information, and performance is moderate with basic mobile optimization and accessibility features. Security posture is limited with no detected security headers or explicit SSL configuration details, and privacy compliance is minimal with no privacy or terms of service pages found. Social media presence is established with official Facebook and Instagram links. Overall, the website appears legitimate but would benefit from enhanced security and privacy practices.

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

11 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

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  4. 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"

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

Keep watching highlighter.eu

This scan found 28 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.

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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
20
Email security
60
DNS health
75
Network security
0
GDPR outside view
25
Average
40

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 · found on this site
  • 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

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Centropen operates in the retail sector specializing in stationery products, particularly highlighters. The business model is product sales with a focus on appealing packaging and style. The website serves as a marketing and informational platform rather than a full e-commerce site. The brand maintains social media engagement, indicating active marketing efforts. Lack of detailed company information and contact details on the site limits transparency. The domain is privacy protected, which is common for .eu domains, and no suspicious patterns were detected. The partnership with centropen.cz suggests a broader brand ecosystem. Growth indicators and revenue streams are not disclosed on the site.

Security posture

The website currently exhibits a basic security posture. HTTPS usage is assumed but not explicitly confirmed in the provided data. No security headers such as Content-Security-Policy or X-Frame-Options were detected, which are recommended to mitigate common web vulnerabilities. No forms or input fields were found, reducing immediate risk of injection attacks, but also limiting user interaction. Privacy and incident response policies are absent, which could impact GDPR compliance and incident handling readiness. No vulnerability disclosure or security.txt files were found. The site should implement stronger security headers, clear privacy policies, and contact channels for security incidents to improve trust and compliance.

Recommendations

  1. Implement and enforce HTTPS with strong SSL/TLS configuration and verify certificate validity.
  2. Add essential security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a comprehensive privacy policy and terms of service pages to enhance compliance and transparency.
  4. Provide clear contact information including emails and phone numbers for customer and security incident reporting.
  5. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
centropen
Description
The website promotes a product line of highlighters under the brand centropen, focusing on style and color variety. It targets consumers interested in stationery products, specifically highlighters.
Key services
manufacture and sale of highlighters
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Lottie animations, Adobe Typekit fonts
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 accessible and not blocked by WAF or security mechanisms.
  2. WHOIS data is unavailable due to .eu privacy restrictions.
  3. No explicit privacy policy or terms of service found on the main page.
  4. Cookie policy is implemented with consent mechanism.
  5. No contact emails or phone numbers explicitly found in the HTML content.
  6. Social media links to Facebook and Instagram are present and point to centropen official pages.
  7. Website uses modern web fonts and Lottie animations for enhanced user experience.
  8. No analytics or tracking scripts detected in the provided HTML snippet.
  9. No forms detected in the provided HTML content.
  10. No security headers information available from provided data.
Technical notes

Notes

The website uses modern front-end technologies such as HTML5, CSS3, JavaScript, and Lottie animations for interactive content. Adobe Typekit fonts are used for typography. No CMS or backend technologies were identified from the provided HTML snippet. External resources are loaded from trusted domains like centropen.cz and typekit.net. Performance is moderate with some optimization for mobile devices. Accessibility is basic, with room for improvement in semantic markup and ARIA attributes. SEO optimization is basic with meta tags present but no structured data or Open Graph tags detected. Hosting provider and server details are not available from the data provided.
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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