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Security report for cogentco.com

Cogent Communications · Telecommunications · United States

Medium risk. 4 critical or high findings in Security headers and GDPR outside view.

Security score

74/100

Risk levelMedium

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

Cogent Communications is a leading global Internet Service Provider operating one of the largest fiber-optic networks dedicated solely to Internet traffic. Established in 1999, the company serves over 302 markets in 57 countries, providing high-quality Internet, Ethernet, VPN, transport, and colocation services to a diverse clientele including small and medium businesses, enterprises, carriers, and content providers. Their Tier 1 global network and extensive fiber infrastructure position them as a major player in the telecommunications industry. Technically, the website is built on Joomla CMS with modern JavaScript libraries such as jQuery, Bootstrap 3, Swiper.js, and Owl Carousel, ensuring a responsive and user-friendly experience. The site integrates multiple analytics and marketing tools including Google Analytics, Google Tag Manager, Demandbase, and Chaport Live Chat, all managed with a clear cookie consent mechanism supporting GDPR compliance. Performance is moderate with good mobile optimization and basic accessibility features. From a security perspective, the site enforces HTTPS with domain registration locks and employs cookie consent for privacy compliance. However, DNSSEC is not enabled, and explicit security policies or incident response contacts are not published. No vulnerabilities or exposed sensitive data were detected in the content. The domain WHOIS data is consistent with the business claims, showing a long-established registration with no privacy protection, enhancing trustworthiness. Overall, Cogent Communications' website reflects a professional, secure, and compliant digital presence aligned with its enterprise-grade telecommunications services. The company demonstrates strong business credibility with comprehensive service offerings, customer testimonials, and investor relations information. Strategic recommendations include enabling DNSSEC, publishing explicit security policies, and enhancing accessibility to further strengthen their security posture and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 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 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 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

    • 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

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

Keep watching cogentco.com

This scan found 20 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
85
Security headers
45
Email security
70
DNS health
80
Network security
100
GDPR outside view
65
Average
74

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

Cogent Communications holds a strong market position as a Tier 1 global ISP with a broad fiber network footprint. Their business model focuses on providing dedicated internet access, IP transit, VPN, transport, and colocation services to a wide range of customers from SMBs to large enterprises and carriers. Revenue streams likely derive from bandwidth sales, colocation rentals, and cloud connectivity solutions. The company’s acquisition of T-Mobile’s Wireline Business indicates growth and expansion. Their partnership ecosystem includes customer portals and integration with major cloud providers (AWS, Azure, Google Cloud). The website’s multilingual support and global office presence reflect a mature international operation with strategic emphasis on customer service and network reach.

Security posture

The website exhibits a mature security posture with enforced HTTPS, domain registration locks, and cookie consent mechanisms supporting privacy compliance. The absence of DNSSEC is a minor gap in DNS security. No explicit security or incident response policies are published, which could improve transparency and readiness. The use of multiple third-party scripts necessitates ongoing vulnerability management. No exposed sensitive data or vulnerabilities were detected in the HTML content. Overall, the security posture is strong but could benefit from enhanced policy disclosures and DNS security improvements.

Recommendations

  1. Enable DNSSEC to enhance DNS security and prevent spoofing.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and trust.
  3. Implement a security.txt file to facilitate vulnerability disclosure and responsible reporting.
  4. Enhance website accessibility features to meet higher compliance standards.
  5. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Cogent Communications
Description
Cogent is one of the world's largest Internet Service Providers, delivering high-quality Internet, Ethernet and Colocation services across over 118,730 Enterprise and NetCentric customer connections. Cogent serves over 302 markets in 57 countries across its facilities-based, all-optical IP network.
Key services
Dedicated Internet Access, IP Transit, Global Peer Connect, Ethernet Services, MPLS IP-VPN, SD-WAN, Optical Wavelengths, Colocation, Utility Computing
Content quality
excellent
Branding
consistent

Technology

Stack
Joomla CMS, jQuery, Bootstrap 3, Swiper.js, Owl Carousel, Google Tag Manager, Google Analytics, Chaport Live Chat, Demandbase, ActOn Beacon
Frameworks
Bootstrap 3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

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

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
ActOn Beacon, Demandbase
Marketing tools
Chaport Live Chat
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed with clear navigation and multilingual support.
  2. Strong presence of customer testimonials and business case studies.
  3. Comprehensive product and solution offerings clearly detailed.
  4. Cookie consent and privacy policies are implemented with GDPR compliance.
  5. No signs of security blocking or content restrictions.
  6. Use of multiple third-party analytics and marketing tools with consent mechanisms.
  7. No exposed sensitive information or obvious vulnerabilities detected.
Technical notes

Notes

The website is built on Joomla CMS with a modern front-end stack including jQuery, Bootstrap 3, Swiper.js, and Owl Carousel, providing a responsive and interactive user experience. Integration with Google Tag Manager and Google Analytics enables comprehensive traffic analysis. The site uses Chaport Live Chat for customer engagement and Demandbase for marketing intelligence. Performance is moderate with good mobile optimization but basic accessibility. The domain is registered with Network Solutions, LLC since 1999, indicating a stable infrastructure. No hosting provider is explicitly identified. The technical implementation is solid with room for improvements in accessibility and DNS security.
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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