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Security report for arelion.com

Arelion · Telecommunications · N/a

Medium risk. 7 critical or high findings in SSL/TLS, Security headers and 1 other check.

Security score

56/100

Risk levelMedium

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

Arelion is a leading global telecommunications company specializing in wholesale and enterprise connectivity services. With a fiber backbone spanning 77,000 kilometers across Europe, North America, and Asia, Arelion connects the world's largest network operators and content providers. The company offers a broad portfolio of services including IP Transit, Dedicated Internet Access, Cloud Connect, DDoS Mitigation, and various networking and voice solutions. Positioned as the #1 ranked global Internet backbone, Arelion targets large enterprises, network operators, and content providers seeking premium connectivity solutions. Technically, the website demonstrates a mature digital infrastructure with modern JavaScript frameworks, integration of Google Tag Manager, Cookiebot for consent management, and Visual Website Optimizer for performance and user experience enhancements. The site is mobile-optimized, accessible, and SEO-friendly, reflecting a high level of digital maturity. From a security perspective, the site enforces HTTPS and employs cookie consent mechanisms, but lacks explicit security policies, incident response contacts, and vulnerability disclosure information. No critical vulnerabilities or exposed sensitive data were detected. The absence of WHOIS data for the domain is a notable anomaly, potentially indicating privacy protection or a recent domain transfer, which slightly impacts trustworthiness. Overall, Arelion presents a professional and trustworthy online presence consistent with a large enterprise telecommunications provider. Strategic recommendations include enhancing transparency around security policies, publishing incident response contacts, and addressing WHOIS data gaps to improve domain trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

7 findings 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  2. 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

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

Keep watching arelion.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

€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
0
Security headers
20
Email security
80
DNS health
85
Network security
100
GDPR outside view
50
Average
56

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

Arelion operates in the telecommunications sector with a focus on wholesale and enterprise connectivity. Its competitive advantage lies in its extensive fiber backbone and direct connections to major Internet routes and content providers. The business model centers on providing scalable, reliable, and premium connectivity services to large network operators and enterprises globally. Revenue streams likely include IP transit, wavelength services, cloud connectivity, voice and messaging services, and mobile data solutions. The company demonstrates strong growth indicators with a 30-year history and a large global footprint. Partnerships and industry event participation (e.g., Capacity Europe) highlight an active engagement in the ecosystem. The website's comprehensive service catalog and customer testimonials reinforce its market position and customer loyalty.

Security posture

The security posture of Arelion's website is solid with HTTPS enforced and cookie consent implemented, reflecting compliance with privacy regulations such as GDPR. However, the absence of a publicly available security policy, incident response contact information, and vulnerability disclosure mechanisms represents gaps in transparency and readiness. The use of reputable third-party tools and absence of exposed sensitive data are positive indicators. The missing WHOIS data for the domain is a concern that should be addressed to enhance trust. Overall, the security maturity is moderate to good but could be improved by publishing formal security documentation and contact channels.

Recommendations

  1. Publish a comprehensive security policy and incident response contact details on the website.
  2. Implement and publicly disclose a vulnerability disclosure program, including a security.txt file.
  3. Ensure all recommended security headers (e.g., X-Frame-Options, X-Content-Type-Options) are explicitly set and documented.
  4. Address the missing WHOIS data by ensuring domain registration information is complete and publicly accessible to improve trust.
  5. Enhance transparency around data protection officer contact and certifications to strengthen compliance posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Arelion
Description
We connect the world's largest network operators and content providers on our global fiber backbone. In other words, we carry the big ideas of tomorrow.
Key services
IP Transit, Dedicated Internet Access, Internet Exchange Connect, Cloud Connect, DDoS Mitigation, Wavelengths, Ethernet, Smart IP-VPN, Optical Fiber, Managed Optical Fiber Network
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Cookiebot, Visual Website Optimizer (VWO), Juicer social media feed
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of reputable third-party scripts

Analytics and tracking

Services
Google Tag Manager, Visual Website Optimizer
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Visual Website Optimizer
Marketing tools
Cookiebot, Juicer social media feed
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 navigation
  2. No WAF or blocking detected
  3. Professional telecommunications business with global reach
  4. Strong branding and consistent design
  5. Good privacy and cookie compliance
  6. No explicit security policy or incident response info publicly available
  7. WHOIS data missing or unavailable, which is unusual
Technical notes

Notes

The website uses a modern JavaScript-based front-end with custom controllers and animations, integrating third-party services such as Google Tag Manager, Cookiebot for cookie consent, Visual Website Optimizer for A/B testing, and Juicer for social media feeds. The site is mobile responsive, accessible, and optimized for SEO with appropriate meta tags and structured data (JSON-LD). Performance is moderate with some lazy loading and caching mechanisms. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not evident from the HTML content. Overall, the technical implementation is robust with opportunities to improve performance and security header configurations.
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. 85/100Low23 findingsView report
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