Sentinel Marine Aberdeen operates as a provider of offshore support vessels (OSVs) and emergency response and rescue vessels (ERRVs), serving clients primarily in the North Sea and related energy, marine, and government sectors. The company emphasizes a modern fleet of 14 high-specification vessels and focuses on safety, sustainability, and long-term partnerships. The website is built on WordPress with common plugins for SEO and user experience, showing a moderate level of digital maturity. Security posture is adequate with HTTPS and reCAPTCHA but lacks advanced security headers and explicit privacy policies. The absence of WHOIS registration data raises concerns about domain legitimacy, impacting overall trust. Strategic recommendations include improving transparency with privacy and security policies and verifying domain registration details.
Scanned ·
NIS2 and GDPR posture
GDPR outside view
68/ 100 · Medium
Checks completed
7of 7
NIS2 Art. 21(2)
a(a) Risk analysis and security policies: Not visible from outside
b(b) Incident handling: One indicator
c(c) Business continuity, backups and crisis management: Not visible from outside
d(d) Supply chain security: Not visible from outside
e(e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
f(f) Assessing the effectiveness of security measures: Not visible from outside
g(g) Cyber hygiene and security training: Not visible from outside
h(h) Cryptography and encryption: Partly checked
i(i) HR security, access control and asset management: One indicator
j(j) Multi-factor authentication and secured communications: Not visible from outside
Partly checked
One indicator
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.
Network security
Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.
Critical
Critical Service Exposed: MySQL
Port 3306 (MySQL) is publicly accessible - MySQL - Database server
What to do: Immediately restrict access to MySQL using firewall or VPN
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"
This scan found 24 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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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
15
Email security
85
DNS health
85
Network security
0
GDPR outside view
68
Average
54
After the cap
49
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 · found on this site
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 sentinel-marine.com, from OffSeq Breach.
No leaked records found
Breach holds no records for sentinel-marine.com right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Business context
Business profile
The company positions itself as a leading operator in offshore marine services with a focus on renewables, fisheries, and oil and gas sectors. Its business model revolves around providing high-quality vessel operations with an emphasis on safety and sustainability. The website content and LinkedIn presence support a medium-sized enterprise with growth ambitions. However, the lack of publicly available WHOIS data and contact details limits full business credibility assessment. The company targets industry clients requiring reliable marine support and emergency response capabilities.
Security posture
The website uses HTTPS and includes Google reCAPTCHA for form security, indicating basic security awareness. However, no security headers such as Content Security Policy, HSTS, or X-Frame-Options were detected, which are recommended best practices. No explicit incident response or vulnerability disclosure policies are published. The absence of privacy and cookie policies also indicates compliance gaps, particularly regarding GDPR. No vulnerabilities or exposed sensitive data were identified in the provided content. Overall, the security posture is moderate but could be significantly improved with policy transparency and technical hardening.
Recommendations
Implement and publish comprehensive privacy and cookie policies with user consent mechanisms.
Add security headers (CSP, HSTS, X-Frame-Options) to enhance protection against common web attacks.
Publish incident response and vulnerability disclosure policies to improve transparency and trust.
Verify and update WHOIS domain registration information to ensure legitimacy and compliance.
Enhance contact information availability, including security contact channels, to support incident reporting.
Site observations
Automated reading of the public site. Ratings are indicative.
Business
Company
Sentinel Marine -
Description
Sentinel Marine Aberdeen, a leading provider of offshore support vessels (OSVs) and emergency response and rescue vessels (ERRVs).
Key services
Offshore support vessels (OSVs), Emergency response and rescue vessels (ERRVs), Marine services for Renewables, Fisheries, Oil and Gas sectors
Content quality
good
Branding
consistent
Technology
Stack
WordPress, WPBakery Page Builder, Slider Revolution, Yoast SEO, jQuery, Google reCAPTCHA
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good
Security
Observed score
75/100
Good practices seen
HTTPS enabled
Google reCAPTCHA implemented
Analytics and tracking
Services
Google Analytics
Tracking level
moderate
Privacy practices
basic
Advertising
Tracking pixels
Google Analytics (gtag.js)
Transparency
basic
Site quality
Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate
Key observations
Website is fully accessible with rich content and professional design
No privacy, cookie, or terms of service policies found or linked
No explicit contact emails or phone numbers found in the provided content
Social media presence limited to LinkedIn
Modern WordPress-based site with common plugins and SEO optimization
No security headers detected in provided data
WHOIS data missing, indicating potential domain registration or data privacy issues
Technical notes
Notes
The website is built on WordPress using WPBakery Page Builder and Slider Revolution plugins, with Yoast SEO for optimization. It uses jQuery and Google reCAPTCHA scripts, and Google Analytics for tracking. The site appears moderately performant with responsive design and good SEO metadata. However, no advanced frameworks or hosting provider details were identified. Accessibility features are basic, and there is room for improvement in security headers and privacy compliance. The technical stack is standard for a professional corporate site but lacks advanced security and compliance features.
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.
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