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Security report for criticalsoftware.com

Critical Software · Technology · Portugal

Low risk. 2 critical or high findings in GDPR outside view and SSL/TLS.

Security score

83/100

Risk levelLow

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

Critical Software is a well-established technology company specializing in safety, mission, and business-critical software and system services. With over 25 years of experience, it serves demanding industries such as aviation, automotive, defence, energy, finance, government, medical devices, railway, and space. The company is recognized for its expertise in safety-critical software development, testing, verification, and validation, and is trusted by leading global brands including Airbus, Leonardo, BMW, Siemens, ESA, and Thales. The website reflects a mature digital presence with professional design, clear navigation, and multilingual support.

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

2 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • 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

  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 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 criticalsoftware.com

This scan found 14 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
75
Security headers
85
Email security
85
DNS health
85
Network security
100
GDPR outside view
68
Average
83

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

The company operates a bespoke software development business model targeting enterprise clients in high-stakes sectors. Its market position is strong, supported by long domain age and reputable partnerships. The website highlights key services such as cyber security, artificial intelligence, digital transformation, and user experience design. The presence of case studies and active news updates indicates ongoing innovation and market engagement. The company’s global footprint includes multiple offices and a large workforce, reinforcing its large size and operational scale.

Security posture

The website employs HTTPS with excellent SSL configuration and security headers, indicating a strong security posture. No exposed sensitive data or vulnerabilities were detected. The use of Cloudflare as registrar and DNS provider adds to the security credibility. However, DNSSEC is not enabled, which is a recommended improvement. The site uses secure forms via HubSpot, but lacks a published security policy or incident response contact information. No vulnerability disclosure or security.txt file was found, suggesting areas for enhancement in transparency and incident management.

Recommendations

  1. Enable DNSSEC to strengthen DNS security and prevent spoofing.
  2. Publish a dedicated security policy and incident response page to improve transparency.
  3. Add a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Provide explicit contact channels for security incidents or abuse reports.
  5. Regularly audit third-party scripts and dependencies to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Critical Software
Description
We provide software and system services for safety, mission and business-critical applications with over 25 years of experience across demanding industries.
Key services
Safety critical software development, Testing and verification & validation, Cyber security, Artificial intelligence, Digital transformation, Systems & software development, User experience design
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, HubSpot forms, Cloudflare DNS
Frameworks
React, Next.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • No exposed sensitive data detected
  • Use of security headers
  • Secure forms via HubSpot

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
HubSpot forms
Marketing tools
HubSpot
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed with clear navigation and multilingual support (en, pt, de).
  2. Strong emphasis on safety-critical software and trusted by major industry players.
  3. Active news and career sections indicate ongoing business activity.
  4. Use of modern web technologies and secure hosting.
  5. No signs of blocking or WAF challenges detected.
Technical notes

Notes

The website is built on a modern tech stack including React and Next.js, with HubSpot integration for forms. Hosting and DNS are managed by Cloudflare, ensuring reliable performance and security. The site is mobile-optimized with excellent accessibility and SEO practices. Performance is fast with proper use of meta tags and structured data. The technical implementation supports a professional and trustworthy user experience, though enabling DNSSEC and expanding security documentation would further enhance the technical maturity.
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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