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Security report for caleffi.com

Caleffi Hydronic Solutions · Energy · Italy

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

71/100

Risk levelMedium

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

Caleffi Hydronic Solutions is a well-established company specializing in hydronic system components, serving a global market with a focus on energy-related heating and plumbing solutions. The company presents a professional and consistent brand image with a multilingual website targeting various international regions. Their digital infrastructure is built on Drupal CMS with integrations for analytics and cookie consent, reflecting a moderate to advanced digital maturity. Security posture is generally strong with HTTPS enforced and cookie consent implemented, though there is room for improvement in security headers and published security policies. The absence of WHOIS registration data is a notable anomaly that impacts trust assessment. Overall, the website is functional, professional, and compliant with privacy regulations, but further verification of domain legitimacy is recommended.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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

4 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 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 Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  3. 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.

  4. 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 caleffi.com

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

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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
72
Security headers
55
Email security
55
DNS health
75
Network security
100
GDPR outside view
68
Average
71

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

The company operates in the energy sector with a manufacturing and distribution business model. It targets industry professionals and distributors internationally, leveraging a multilingual approach to cater to diverse markets. The website content and structured data indicate a large-sized enterprise founded in 1961, with a strong brand presence and consistent messaging. The use of modern web technologies and marketing tools suggests a focus on digital engagement and customer support. However, the lack of WHOIS data raises questions about domain registration transparency. No explicit partnerships or subsidiaries were identified from the data provided.

Security posture

The website enforces HTTPS and uses cookie consent mechanisms, indicating awareness of privacy and security best practices. However, no security headers were detected, and there is no publicly available security policy or incident response contact information. No vulnerabilities or exposed sensitive data were found in the HTML content. The site would benefit from publishing a security policy, adding security.txt, and implementing additional HTTP security headers to enhance protection and transparency. Incident response readiness and vulnerability disclosure mechanisms appear absent, which could impact trust and compliance.

Recommendations

  1. Implement and publish a comprehensive security policy and incident response contact information on the website.
  2. Add HTTP security headers such as Content-Security-Policy, X-Content-Type-Options, and Strict-Transport-Security to improve security posture.
  3. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  4. Verify and update WHOIS registration data to ensure domain legitimacy and transparency.
  5. Enhance user trust by adding terms of service and improving visible compliance documentation.

Contact details published on the site

Addresses
Legal name
Caleffi S.p.a.
VAT number
IT04104030962
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Caleffi Hydronic Solutions
Description
Caleffi Hydronic Solutions is a company specializing in hydronic solutions, providing products and services related to heating, cooling, and plumbing systems.
Key services
Hydronic system components manufacturing, Customer support, International distribution
Content quality
good
Branding
consistent

Technology

Stack
Drupal 9, Drupal 10, Google Tag Manager, Cookiebot, Google Fonts, YouTube API
Frameworks
Drupal CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads
Marketing tools
Cookiebot
Transparency
good

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 WAF or security blocks.
  2. Content is professionally presented with clear navigation and multi-language country selection.
  3. Privacy and cookie policies are implemented with consent mechanisms.
  4. No visible forms collecting personal data on the splash page.
  5. Use of modern CMS (Drupal) and integration with Google Tag Manager and Cookiebot.
  6. WHOIS data is missing or unavailable, which is unusual for an active commercial website.
  7. No explicit security policy or incident response information found.
  8. No terms of service page detected on the splash page.
  9. Social media presence includes YouTube, LinkedIn, and Pinterest.
Technical notes

Notes

The website is built on Drupal CMS (versions 9 and 10 referenced), using Google Tag Manager for analytics and Cookiebot for cookie consent management. It loads Google Fonts and YouTube APIs for enhanced user experience. The site is mobile optimized and accessible with good SEO practices including meta tags and structured data. Performance is moderate with asynchronous loading of scripts. No hosting provider details were identified. The technical stack is modern and well-maintained, though there is opportunity to improve security headers and formalize security documentation.
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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