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Security report for belden.com

Belden · Manufacturing · United States

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

78/100

Risk levelLow

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

Belden is a global enterprise specializing in the design, manufacture, and marketing of networking, connectivity, and cable products primarily serving industrial automation, smart buildings, and broadcast markets. The company positions itself as a leader in providing robust and innovative connectivity solutions to business clients worldwide. The website reflects a mature digital presence with multilingual support and a comprehensive product and solutions catalog. Technically, the site employs modern web technologies including jQuery, Bootstrap 4, and integrates Google Tag Manager and OneTrust for analytics and consent management, indicating a good level of digital maturity. Security-wise, the site enforces HTTPS and uses consent management tools, but lacks explicit security headers and a public security.txt file, which are recommended for enhanced security posture. The absence of WHOIS registration data is a notable anomaly, though the website content and external service domains strongly suggest legitimacy. Overall, the site is professional, secure, and compliant with privacy regulations, with room for improvement in security best practices and transparency of domain registration.

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

3 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. 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
    • 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 belden.com

This scan found 17 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
57
Security headers
60
Email security
85
DNS health
80
Network security
100
GDPR outside view
88
Average
78

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 belden.com, from OffSeq Breach.

Total records
1,284
Employees
18
Customers
1,109
Third parties
157
Weak passwords
12%

Latest record dated 2026-06-10 · 26 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 belden.com.

Select it in the checkout above.

Masked preview

  • –learn.belden.com2026-06-10
  • –lumberg-automation-support.belden.com2026-05-26
  • –webmail.belden.com2026-05-15
  • –lumberg-automation-support.belden.com2026-05-13
  • –auth.belden.com2025-11-13

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

Belden operates in the manufacturing sector with a focus on industrial networking and connectivity solutions. Its business model is B2B, targeting industries such as industrial automation, smart buildings, and broadcast. The company leverages a global presence with localized language versions of its website and dedicated portals for partners, training, and careers. The integration of customer innovation centers and a strong support infrastructure indicates a customer-centric approach. The company likely generates revenue through product sales, solutions services, and partner programs. The digital ecosystem includes multiple subdomains for specialized services, reflecting a mature partnership and service network. The lack of public WHOIS data may be due to privacy protection or registrar policies but warrants further verification. The company demonstrates consistent branding and professional content, supporting a high trust level among its target audience.

Security posture

The website demonstrates a solid security foundation with enforced HTTPS and the use of a reputable consent management platform (OneTrust). Google Tag Manager and Analytics are implemented with default consent denied, indicating privacy-conscious tracking. However, the absence of explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces the overall security posture. No vulnerabilities or exposed sensitive data were detected in the HTML content. The lack of a security.txt file or dedicated incident response contact information is a gap in transparency and readiness for vulnerability disclosure. The WHOIS data absence is a concern for domain trust but does not directly impact website security. Recommendations include adding security headers, publishing a security.txt file, and enhancing incident response visibility to improve security maturity.

Recommendations

  1. Implement and enforce security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  2. Publish a security.txt file to provide clear vulnerability disclosure and incident response contact information.
  3. Regularly audit third-party scripts and libraries for vulnerabilities and update them promptly.
  4. Enhance WHOIS transparency by ensuring accurate and publicly accessible domain registration information.
  5. Continue to maintain and improve privacy compliance mechanisms and user consent management.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Belden
Description
We design, manufacture and market networking, connectivity, cable products and solutions for industrial automation, smart buildings and broadcast markets.
Key services
networking products, connectivity solutions, cable manufacturing
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.7.1, jQuery UI 1.14.0, Bootstrap 4, Google Tag Manager, OneTrust Consent Management
Frameworks
Bootstrap 4
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Consent management with OneTrust
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
OneTrust Consent Management
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed with clear navigation and multilingual support.
  2. Uses modern web technologies and consent management tools.
  3. No signs of malware or phishing detected.
  4. WHOIS data is missing or privacy protected, which reduces trust slightly.
  5. Contact phone number and support links are clearly provided.
  6. No explicit security.txt or incident response contact found.
  7. Privacy and cookie policies are present and GDPR compliant.
Technical notes

Notes

The website uses a modern and stable technology stack including jQuery 3.7.1, jQuery UI, and Bootstrap 4 for responsive design. Google Tag Manager and OneTrust are integrated for analytics and privacy compliance, respectively. The site is mobile optimized and accessible with good SEO practices including meta tags and Open Graph data. Performance is moderate with room for optimization. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not evident from the HTML content. The site structure is clear with multilingual support and well-organized navigation. Technical risks include reliance on third-party scripts and missing security headers. Opportunities exist to enhance performance and security through modern HTTP headers and improved domain registration transparency.
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. 81/100Low20 findingsView report
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