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Security report for tallink.com

AS Tallink Grupp · Transportation · Estonia

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

75/100

Risk levelMedium

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

AS Tallink Grupp operates the Tallink Silja Line ferry and cruise services across the Baltic Sea, connecting major cities such as Helsinki, Stockholm, Tallinn, Turku, and the Åland Islands. The company offers passenger transportation, cargo services, onboard entertainment, tax-free shopping, and hotel accommodations, positioning itself as a leading maritime transport provider in the Baltic region. The website reflects a mature digital presence with a modern tech stack based on Next.js and React, delivering fast performance and excellent mobile optimization. Security posture is strong with HTTPS enforcement and security headers, though explicit security policies and incident response contacts are not publicly disclosed. Privacy and cookie policies are comprehensive and GDPR compliant, with active consent mechanisms. The absence of WHOIS data reduces domain registration transparency but does not detract significantly from the overall trustworthiness given the professional branding and extensive external references. Strategic recommendations include publishing a security policy, incident response contacts, and vulnerability disclosure information to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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 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';…

  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

  3. 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

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

Keep watching tallink.com

This scan found 19 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
77
Security headers
35
Email security
85
DNS health
85
Network security
100
GDPR outside view
68
Average
75

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

Tallink Grupp holds a strong market position as a major ferry and cruise operator in the Baltic Sea, targeting tourists and travelers seeking comfortable and entertaining sea transportation. The business model integrates passenger and cargo transport with ancillary services such as hotels, onboard dining, entertainment, and duty-free shopping, creating diversified revenue streams. The company leverages digital channels effectively for bookings and customer engagement, supported by a loyalty program (Club One). Partnerships and subsidiaries are clearly delineated through subdomains and external links. Growth indicators include active promotions, app availability, and a broad route network. The company maintains a consistent brand image and professional content, reinforcing its credibility in the transportation sector.

Security posture

The website demonstrates a high level of security maturity with enforced HTTPS, modern security headers (CSP, HSTS, X-Frame-Options, etc.), and secure login mechanisms via embedded SSO iframes. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a publicly available security policy, incident response contacts, or vulnerability disclosure program represents a compliance gap and potential risk area. GDPR compliance is well addressed through privacy and cookie policies with consent mechanisms. Incident response readiness and security culture indicators are not visible, suggesting room for improvement in transparency and user trust. Overall, the security posture is strong but could be enhanced by publishing additional security governance documentation.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and publicize a vulnerability disclosure or security.txt file to encourage responsible reporting.
  4. Enhance visibility of data protection officer contact information to strengthen GDPR compliance.
  5. Regularly audit WHOIS data and ensure domain registration information is accurate and publicly accessible to improve trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
AS Tallink Grupp
Description
Ferry trips and cruises to Helsinki, Stockholm, Tallinn, Turku, or Åland. Enjoy comfortable cabins, tax-free shopping, and international entertainment on board.
Key services
Passenger ferry trips, Cruises, Cargo transportation, Hotel services, Onboard entertainment, Duty-free shopping
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, CSS, SVG icons
Frameworks
Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Secure login iframe for SSO
  • No exposed sensitive data in HTML
  • Use of CSP and other headers

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

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 no blocking detected
  2. Strong branding and consistent design across pages
  3. Comprehensive privacy and cookie policies with consent mechanism
  4. Secure login and booking system with embedded SSO iframe
  5. Multiple social media channels linked with official company profiles
  6. No explicit security policy or incident response contact found
  7. No vulnerability disclosure or security.txt file detected
  8. WHOIS data missing, which is unusual but not uncommon for large companies using privacy or registry protection
  9. Use of modern web technologies and frameworks (Next.js, React)
  10. Good SEO and accessibility practices observed
Technical notes

Notes

The website is built on a modern React and Next.js framework, enabling server-side rendering and optimized performance. The use of SVG icons and responsive design techniques ensures excellent mobile and desktop user experiences. The site employs Google Tag Manager for analytics and marketing tracking, balancing data collection with privacy compliance. No CMS was explicitly detected, suggesting a custom or proprietary content management approach. Hosting details are not disclosed, but performance indicators suggest a well-optimized infrastructure. Technical debt appears minimal, with opportunities to further modernize by integrating explicit security governance and automated compliance monitoring.
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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