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Security report for nordkalk.com

Nordkalk · Manufacturing · Finland

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

64/100

Risk levelMedium

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

Nordkalk is a leading limestone supplier in Northern Europe, providing essential raw materials and solutions for industries such as agriculture, environmental care, steel, pulp and paper, and construction. The company emphasizes sustainability and circular economy principles, aiming to reduce carbon footprint and maximize resource utilization. Owned by UK-based SigmaRoc PLC, Nordkalk operates multiple localized domains serving different European markets. The website is built on WordPress with modern technologies and demonstrates good SEO and mobile optimization. Security posture is solid with HTTPS and cookie consent mechanisms, though explicit security headers and incident response information are lacking. The absence of WHOIS data for the domain www.nordkalk.com raises concerns about domain registration legitimacy, though the website content and branding appear professional and trustworthy. Contact information is primarily via web forms, with no direct emails or phone numbers publicly listed. Overall, the site reflects a mature business with a strong sustainability focus but would benefit from enhanced transparency in domain registration and security policies.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 100 · Low
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

5 findings rated critical or high. Fix these first.

  1. 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching nordkalk.com

This scan found 27 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

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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
67
Security headers
15
Email security
55
DNS health
65
Network security
100
GDPR outside view
80
Average
64

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

Technical appendix

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

Business context

Business profile

Nordkalk holds a strong market position as the leading limestone company in Northern Europe, serving diverse sectors including manufacturing, agriculture, and environmental care. Their business model focuses on B2B supply of limestone-based products and solutions, with a strategic emphasis on sustainability and circular economy. Revenue is approximately EUR 400 million with around 800 employees. The company maintains a multi-country presence with localized websites and social media engagement. Their partnership ecosystem includes parent company SigmaRoc PLC. Growth indicators include active news updates and sustainability reporting. The company leverages digital channels for marketing and customer engagement but lacks direct public contact details, which may impact customer trust and accessibility.

Security posture

The website enforces HTTPS and implements cookie consent compliant with GDPR, indicating a baseline security and privacy posture. However, no explicit security headers such as Content-Security-Policy or X-Frame-Options were detected, which are recommended best practices to mitigate common web vulnerabilities. There is no public incident response or vulnerability disclosure information, which limits transparency and preparedness perception. The use of WordPress and associated plugins requires diligent patching to avoid vulnerabilities. No exposed sensitive data or vulnerable libraries were identified in the HTML content. Overall, the security maturity is moderate but could be improved by adopting additional security headers, publishing security policies, and providing incident response contacts.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common attacks.
  2. Publish a clear security policy and incident response information on the website to improve transparency and trust.
  3. Verify and update domain WHOIS registration to ensure consistency and legitimacy, addressing the current lack of WHOIS data.
  4. Provide direct company contact emails and phone numbers for improved customer accessibility and trust.
  5. Enhance accessibility features to meet higher standards and improve user experience for all visitors.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Nordkalk
Description
Nordkalk is Northern Europe´s leading supplier of limestone-based products for industry, agriculture and environmental care. They contribute to a brighter tomorrow with limestone products essential for soil, water, air purification and industrial processes such as steel and pulp and paper.
Key services
Limestone products for agriculture, Water treatment solutions, Flue gas treatment, Construction materials, Coatings and adhesives, Plastics and rubbers additives, Pulp and paper industry solutions, Metals and mining industry products, Glass and sugar industry products, Garden products
Content quality
good
Branding
consistent

Technology

Stack
WordPress 6.7.2, jQuery 3.5.1, Slick Carousel, Yoast SEO plugin, Google Fonts, Google Tag Manager (gtag.js), WordPress GDPR plugin
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with preferences
  • No exposed sensitive data in HTML
  • Use of security plugins (WordPress GDPR)

Analytics and tracking

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

Advertising

Marketing tools
Google Fonts, Yoast SEO
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and multimedia.
  2. No WAF or blocking mechanisms detected.
  3. WHOIS data is missing or domain not registered under www.nordkalk.com, which is unusual for a professional corporate site.
  4. Strong focus on sustainability and circular economy in business messaging.
  5. Multiple language versions available indicating international presence.
  6. Cookie consent and privacy mechanisms implemented in compliance with GDPR.
  7. No direct company contact emails or phone numbers found on homepage; contact via form only.
  8. Social media presence on Facebook, LinkedIn, Instagram, and YouTube.
  9. Use of modern web technologies and SEO best practices.
Technical notes

Notes

The website is built on WordPress 6.7.2, utilizing jQuery 3.5.1, Slick Carousel for sliders, and Yoast SEO for search engine optimization. Google Fonts and Google Tag Manager are integrated for typography and analytics respectively. The site uses lazy loading for images and videos to optimize performance. Mobile optimization is good with responsive design and viewport settings. The site loads moderately fast but could benefit from further performance tuning. Accessibility is basic with room for improvement. No major technical debt or outdated libraries were detected, indicating a well-maintained technical infrastructure. Hosting provider details are not disclosed. Overall, the technical stack supports a professional and functional website experience.
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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