Skip to main content

Security report for koh-i-noor.cz

KOH-I-NOOR HARDTMUTH a.s. · Manufacturing · Czech Republic

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

Security score

50/100

Risk levelMedium

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

KOH-I-NOOR HARDTMUTH a.s. is a well-established Czech manufacturer and retailer of writing and art supplies, with a history dating back to 1790. The company offers a broad range of products targeting children, professional artists, craftsmen, and office workers, positioning itself as a traditional and reputable brand in the manufacturing and retail sectors. The website reflects a mature digital presence with multilingual support, clear navigation, and rich content focused on product categories and company heritage. Technically, the site uses modern technologies such as React and includes performance and SEO optimizations, although some security headers are not evident. The security posture is generally good with HTTPS and cookie consent mechanisms in place, but could be improved with additional security headers and explicit incident response information. WHOIS data is unavailable, limiting domain registration trust verification, but the website content and business information appear consistent and credible. Overall, the site demonstrates a strong business and technical foundation with room for security enhancements.

Scanned

This is an earlier scan of koh-i-noor.cz. View the latest report

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 koh-i-noor.cz

This scan found 25 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
52
Security headers
15
Email security
75
DNS health
80
Network security
40
GDPR outside view
40
Average
50

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 koh-i-noor.cz, from OffSeq Breach.

Total records
39
Employees
1
Customers
35
Third parties
3
Weak passwords
21%

Latest record dated 2025-07-19 · 4 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 koh-i-noor.cz.

Select it in the checkout above.

Masked preview

  • –agata.koh-i-noor.cz2025-07-19

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)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 operates in the manufacturing and retail sectors, specializing in art, school, and office supplies. It maintains a strong market position as a traditional Czech brand with global distribution. The business model includes product manufacturing, e-commerce sales, and custom product configuration services. The target customer segments range from children to professional artists and office users. The company leverages a partner ecosystem including official catalogs and blogs to enhance customer engagement. Growth indicators include a comprehensive product range and active online presence. Strategic observations highlight the importance of maintaining brand consistency and expanding digital marketing efforts.

Security posture

The website enforces HTTPS and implements cookie consent, indicating awareness of privacy and security best practices. However, the absence of visible security headers such as Content-Security-Policy and X-Frame-Options suggests potential areas for improvement. No vulnerabilities or exposed sensitive data were detected in the analysis. The lack of a dedicated security policy or incident response contact reduces transparency in security management. Compliance with GDPR is indicated by the privacy policy and cookie banner. Overall, the security maturity is moderate to good, with recommendations to enhance header configurations and incident response readiness.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Publish a dedicated security policy and provide clear incident response contact information to improve transparency and trust.
  3. Regularly audit and update third-party scripts and libraries to prevent vulnerabilities from outdated components.
  4. Enhance accessibility features to improve compliance with standards and user experience for all visitors.
  5. Maintain and update privacy and cookie policies to ensure ongoing GDPR compliance and user trust.

Contact details published on the site

Addresses
Legal name
KOH-I-NOOR HARDTMUTH a.s.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
KOH-I-NOOR HARDTMUTH a.s.
Description
Český výrobce psacích a výtvarných potřeb KOH-I-NOOR HARDTMUTH přináší do života radost a zábavu skrze výtvarné potřeby pro malé i velké.
Key services
Manufacture of pencils, pastels, paints, markers, brushes, Retail via e-shop and physical stores, Custom product configuration
Content quality
excellent
Branding
consistent

Technology

Stack
React 17.0.2, Core-js polyfill, Unfetch polyfill, Google Tag Manager
Frameworks
React
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and content-rich.
  2. Multiple language options available.
  3. Clear product categories and calls to action.
  4. Cookie consent and privacy policy implemented.
  5. No visible security headers detected in provided data.
  6. WHOIS data unavailable, limiting domain trust verification.
Technical notes

Notes

The website is built using React 17.0.2 with polyfills for compatibility, indicating a modern and responsive front-end architecture. Google Tag Manager is used for analytics and marketing tracking. The site includes well-structured meta tags and Open Graph data for SEO and social media integration. Performance is moderate with good mobile optimization. No CMS or hosting provider information was detected. The technical infrastructure supports a professional and scalable online presence but could benefit from enhanced security configurations and accessibility improvements.
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. 50/100Medium33 findingsView report
Reviews of this site

Share your experience with koh-i-noor.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 koh-i-noor.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.