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Security report for hydro.com

Hydro · Energy · Norway

Low risk. 1 critical or high finding in SSL/TLS.

Security score

84/100

Risk levelLow

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

Hydro is a global leader in aluminium production and renewable energy, operating in over 40 countries with a workforce of 32,000 employees. The company focuses on sustainable business practices, offering low-carbon and recycled aluminium products alongside renewable energy solutions. Their website reflects a mature digital presence with comprehensive global office information and professional branding. Technically, the site employs modern JavaScript frameworks, telemetry via Microsoft Application Insights, and cookie consent management through Cookiebot, indicating a commitment to user privacy and performance monitoring. Security posture is strong with HTTPS enforced and telemetry for error tracking, though explicit security policies and vulnerability disclosures are absent. The WHOIS data for the domain www.hydro.com is missing, which is unusual for a corporate domain and slightly reduces trustworthiness. Overall, the website is professional, secure, and compliant with privacy norms, but could improve transparency around security policies and domain registration details.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

1 finding rated critical or high. Fix these first.

  1. 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching hydro.com

This scan found 14 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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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
75
Security headers
80
Email security
88
DNS health
70
Network security
100
GDPR outside view
88
Average
84

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

Hydro holds a strong market position in the energy and manufacturing sectors, particularly aluminium and renewable energy. Their business model integrates sustainable production with global partnerships and extensive geographic reach. The company targets industrial clients, investors, and potential employees, leveraging a diversified portfolio including aluminium extrusion, fabrication, and renewable energy generation. The presence of multiple global offices and detailed contact information supports a robust partnership ecosystem. The website content and structure indicate a focus on transparency, sustainability, and innovation, which are key competitive advantages. The lack of WHOIS data for the primary domain is a notable anomaly but does not detract significantly from the overall business credibility.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and use of telemetry tools for monitoring and error tracking. Cookie consent is actively managed, supporting GDPR compliance. However, the absence of explicit security policies, incident response contacts, and vulnerability disclosure mechanisms represents a gap in transparency and readiness. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. Security headers are implied but not explicitly confirmed in the provided data. The site would benefit from publishing a security.txt file and formal incident response information to enhance trust and preparedness.

Recommendations

  1. Publish explicit security headers such as X-Frame-Options and X-Content-Type-Options to enhance protection against clickjacking and MIME sniffing.
  2. Provide a publicly accessible security policy and incident response contact information to improve transparency and readiness.
  3. Implement and publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  4. Clarify domain registration details or use a verified WHOIS record to improve domain trustworthiness and reduce ambiguity.
  5. Regularly audit third-party scripts and telemetry tools to ensure no vulnerabilities or privacy issues arise.

Contact details published on the site

Addresses
Legal name
Norsk Hydro ASA
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Hydro
Description
Hydro is a leading aluminium and renewable energy company that builds businesses and partnerships for a more sustainable future. They have 32,000 employees in more than 140 locations and 42 countries.
Key services
Low-carbon and recycled aluminium products, Renewable energy generation, Aluminium extrusion and fabrication, Global business services
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Vue.js (implied by vue-search-wrapper), Google Tag Manager, Microsoft Application Insights, Cookiebot
Frameworks
Vue.js
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • Use of Application Insights for telemetry
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager, Microsoft Application Insights, Siteimprove Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Application Insights
Marketing tools
Cookiebot
Transparency
good

Site quality

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

Key observations

  1. Website is a corporate site for Hydro, a global aluminium and renewable energy company.
  2. Content is rich with multiple global office locations and contact details.
  3. No privacy policy or terms of service explicitly found in the provided HTML snippet.
  4. Cookie consent is implemented via Cookiebot.
  5. Multiple analytics and telemetry scripts are used for tracking and performance monitoring.
  6. WHOIS data for the domain is missing or not found, which is unusual for a corporate domain.
  7. No security.txt or vulnerability disclosure information found.
  8. No explicit security or incident response policies published.
  9. Website is well-structured, mobile optimized, and accessible.
Technical notes

Notes

The website uses a modern JavaScript framework (likely Vue.js) and integrates advanced telemetry via Microsoft Application Insights, indicating a high level of technical maturity. Cookie consent is managed by Cookiebot, supporting privacy compliance. The site is mobile optimized and accessible, with good SEO practices including meta tags and Open Graph data. Performance is moderate, with asynchronous loading of scripts and preloading of key assets. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not evident from the data. The technical stack supports scalability and global reach but could benefit from explicit documentation of security headers and performance metrics.
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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