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Security report for osil.com

Ocean Scientific International Ltd (OSIL) · Energy · United Kingdom

Medium risk. 5 critical or high findings in Security headers and SSL/TLS.

Security score

68/100

Risk levelMedium

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

Ocean Scientific International Ltd (OSIL) is a well-established UK-based company specializing in the design and manufacture of integrated environmental monitoring systems, particularly for marine environments. Their expertise spans instrumented oceanographic data buoy platforms, water column and seabed sampling, marine robotics, and calibration services. The company holds reputable certifications such as ISO 9001 and Cyber Essentials, reinforcing their commitment to quality and security. Their website reflects a mature business with a strong market position serving marine, offshore engineering, and environmental sectors globally. Technically, the website is built on WordPress with modern SEO and performance optimizations including Yoast SEO Premium and WP Rocket. It uses Cloudflare DNS and integrates Google Analytics via Google Tag Manager, with a compliant cookie consent mechanism. The site is mobile-optimized, accessible, and well-structured, providing a professional user experience. From a security perspective, the site enforces HTTPS and employs domain transfer protection. However, DNSSEC is not enabled, and explicit security headers are not detected, which could be improved. No vulnerabilities or exposed sensitive data were found. Privacy compliance is strong with a clear privacy policy and cookie consent. Contact information is comprehensive, but no explicit security or incident response policies are published. Overall, OSIL's digital presence is robust, professional, and trustworthy, with minor recommendations to enhance DNS security and security headers. The risk profile is low, and the company demonstrates good security hygiene and compliance practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 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

5 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 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. 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 osil.com

This scan found 22 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

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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
42
Security headers
15
Email security
85
DNS health
80
Network security
100
GDPR outside view
83
Average
68

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

OSIL operates in a niche but critical sector of marine environmental monitoring and instrumentation, serving research institutions, offshore engineering, and marine robotics industries. Their business model focuses on product design, manufacturing, installation, calibration, and ongoing support. The company’s long domain history and certifications indicate stability and reliability. Their partnership with Venn Creative for site design and active social media presence support brand visibility. The absence of privacy protection in WHOIS and consistent domain registration details reinforce legitimacy. OSIL’s competitive advantage lies in their specialized expertise, comprehensive product range, and strong customer focus. Growth potential exists in expanding marine robotics and offshore monitoring sectors.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and domain transfer protection enabled. The presence of Cyber Essentials certification indicates adherence to UK government security standards. However, the lack of DNSSEC and missing security headers such as Content Security Policy and HSTS are areas for improvement. No incident response or vulnerability disclosure information is publicly available, which could enhance transparency and preparedness. The cookie consent mechanism aligns with GDPR requirements, and no sensitive data leakage was detected. Overall, the security posture is good but could be strengthened with additional DNS and HTTP security controls.

Recommendations

  1. Enable DNSSEC on the domain to protect against DNS spoofing and improve DNS security.
  2. Implement security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options, and X-Content-Type-Options to harden the website against common attacks.
  3. Publish a formal security policy and incident response contact information to improve transparency and readiness.
  4. Add a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  5. Regularly review and update third-party scripts and dependencies to mitigate risks from vulnerable libraries.

Contact details published on the site

Addresses
Legal name
Ocean Scientific International Ltd
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Ocean Scientific International Ltd (OSIL)
Description
Global experts in instrumented oceanographic data buoy platforms, integrated environmental monitoring systems, water column & seabed sampling.
Key services
Instrumented MetOcean data buoy systems, Water column and seabed sampling equipment, Marine robotics and underwater vehicles, Seawater standards and salinometers, Service and calibration, Project implementation, installation, and training
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Yoast SEO Premium, WP Rocket, Cloudflare DNS, Google Tag Manager, CookieConsent.js
Frameworks
Yoast SEO
Platforms
WordPress
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
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 professionally designed and well maintained.
  2. Strong focus on marine environmental monitoring and instrumentation.
  3. Comprehensive product and sector coverage.
  4. Clear contact information and multiple communication channels.
  5. Good SEO and accessibility practices.
  6. Use of modern web technologies and performance optimization.
  7. Certifications and accreditations prominently displayed.
  8. No signs of security blocking or content filtering.
Technical notes

Notes

The website is built on a WordPress CMS platform enhanced with Yoast SEO Premium for search optimization and WP Rocket for caching and performance. It uses Cloudflare for DNS services, which provides resilience and performance benefits. The site loads quickly and is mobile responsive with good accessibility features. External resources include jsDelivr CDN and Adobe Typekit fonts. Google Tag Manager and Google Analytics are used for tracking, integrated with a GDPR-compliant cookie consent banner. The site’s HTML and CSS are valid and well-structured, supporting SEO and user experience. There is no evidence of technical debt or outdated technologies, indicating good maintenance and modernization practices.
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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