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Security report for alcoa.com

Alcoa Corporation · Manufacturing · United States

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

Security score

83/100

Risk levelLow

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

Alcoa Corporation is a leading global aluminum producer focused on sustainable manufacturing and innovation. The company operates across the upstream aluminum value chain including bauxite mining, alumina refining, and aluminum smelting. Their website reflects a mature digital presence with comprehensive corporate information, investor relations, sustainability initiatives, and career opportunities. Technically, the site uses modern frameworks such as Bootstrap and jQuery, integrates Google Analytics and Microsoft Clarity for analytics, and implements a cookie consent mechanism compliant with GDPR. Security posture is good with HTTPS enforced and no visible vulnerabilities, though security headers and explicit security policies could be improved. WHOIS data was not retrievable from the raw output, but the website's professional presentation and external references strongly support legitimacy. Overall, the site is well-designed, trustworthy, and serves its business and stakeholder audiences effectively.

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 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

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Keep watching alcoa.com

This scan found 16 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.

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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
80
Email security
75
DNS health
80
Network security
100
GDPR outside view
88
Average
83

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 alcoa.com, from OffSeq Breach.

Total records
14,741
Employees
72
Customers
135
Third parties
14,534
Weak passwords
1%

Latest record dated 2026-05-26 · 21 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 alcoa.com.

Select it in the checkout above.

Masked preview

  • –sts.alcoa.com2026-05-26
  • –sts.alcoa.com2026-05-24
  • –sts.alcoa.com2026-05-22
  • –sts.alcoa.com2026-05-21
  • –sts.alcoa.com2026-04-21

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

Alcoa holds a strong market position as a major aluminum producer with a focus on sustainability and innovation, evidenced by certifications and industry awards. Their business model centers on manufacturing essential aluminum products with a commitment to reducing carbon footprint through technologies like Sustana® and Elysis®. The website targets investors, customers, job seekers, and industry partners, providing resources such as press releases, sustainability reports, and career portals. The company maintains active social media channels and a clear brand identity. The lack of direct contact emails or phone numbers suggests a preference for controlled communication channels via forms. The presence of multiple subdomains for investors and news indicates a segmented digital strategy supporting corporate transparency and engagement.

Security posture

The website enforces HTTPS and uses cookie consent banners to manage user privacy preferences, indicating compliance with privacy regulations. Analytics tools are deployed with user consent mechanisms. However, the absence of explicit security headers like Content-Security-Policy and a published security policy or incident response contacts limits the security maturity level. No vulnerability disclosures or security.txt files were found, which could improve transparency and trust. No exposed sensitive data or vulnerable libraries were detected in the HTML content. Overall, the security posture is solid but could benefit from enhanced header configurations and published security governance documents.

Recommendations

  1. Implement and publish a comprehensive security policy and incident response contact information on the website.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to improve protection against common web attacks.
  3. Establish a vulnerability disclosure program and publish a security.txt file to encourage responsible reporting of security issues.
  4. Consider providing direct company contact emails or verified phone numbers for security and privacy inquiries to enhance trust.
  5. Regularly review and update third-party libraries and analytics tools to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Alcoa Corporation
Description
Alcoa is a global aluminum company focused on building a legacy of excellence for future generations by excelling today, continuously improving and investing for tomorrow. They operate in upstream aluminum industry segments including bauxite mining, alumina refining, and aluminum smelting.
Key services
Bauxite mining, Alumina refining, Aluminum smelting, Sustainable aluminum products (Sustana®), Innovative aluminum technologies (Elysis®)
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap, Google Tag Manager, Microsoft Clarity
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with opt-in for targeting cookies
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Microsoft Clarity
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Clarity
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design
  2. Strong focus on sustainability and corporate responsibility
  3. Multiple corporate and investor relations resources linked
  4. Cookie consent mechanism implemented with targeting cookie opt-in
  5. No direct contact emails or phone numbers found in HTML; contact via forms
  6. No explicit security.txt or vulnerability disclosure found
  7. WHOIS data unavailable in raw output, limiting domain registration analysis
Technical notes

Notes

The website is built on a modern tech stack including jQuery and Bootstrap, ensuring responsive design and good user experience across devices. Analytics integration with Google Analytics and Microsoft Clarity provides insights into user behavior with consent-based tracking. The site uses standard meta tags and Open Graph properties for SEO and social sharing. Performance is moderate with room for optimization. Accessibility features appear adequate with focus outlines and ARIA attributes. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details were not discernible from the HTML content. Overall, the technical infrastructure supports a professional corporate website with opportunities for performance and security enhancements.
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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