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Security report for andi-santos.com

Andreas Mourão dos Santos · Technology · N/a

Medium risk. 4 critical or high findings in Security headers and DNS health.

Security score

71/100

Risk levelMedium

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

Andreas Mourão dos Santos operates a professional freelance portfolio website showcasing expertise in creative development, design, and AI integration. The business targets clients seeking innovative web solutions combining art and technology. The website is well-designed, mobile-optimized, and provides clear navigation with a focus on portfolio presentation and client engagement via contact forms. Technically, the site uses modern web technologies including Webflow CMS, jQuery, and Swiper.js, hosted under a domain registered with IONOS SE. Security posture is solid with HTTPS enabled and cookie consent implemented, though improvements are possible by enabling DNSSEC and adding security headers. Privacy compliance is addressed with a dedicated privacy policy and cookie consent mechanism. Overall, the site reflects a credible and professional freelance business with a strong digital presence.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

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 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. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Domain Expires Soon

      Domain expires in 24 days

      What to do: Renew domain registration before expiration

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

Keep watching andi-santos.com

This scan found 20 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
100
Security headers
15
Email security
70
DNS health
55
Network security
100
GDPR outside view
88
Average
71

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 business is positioned as a niche freelance creative developer and designer with a unique blend of AI technologies and creative coding. The portfolio highlights diverse projects across development, design, and animation concepts, appealing to clients valuing artistic and technological fusion. The business model is service-based freelance work, with no parent or subsidiary companies. The website content and domain age align well, indicating a recently established but credible operation. Testimonials and detailed project descriptions serve as trust indicators. The absence of direct contact emails or phone numbers suggests a preference for controlled client engagement via forms. No partnerships or related domains were identified.

Security posture

The website demonstrates a good security baseline with HTTPS and cookie consent mechanisms in place. However, the lack of DNSSEC and security headers such as Content-Security-Policy or X-Frame-Options represents areas for enhancement. No exposed sensitive data or vulnerable libraries were detected. Incident response and security policy information are absent, which could be improved to strengthen security culture and readiness. GDPR compliance is supported by the privacy policy and cookie consent banner. Overall, the security posture is adequate for a small freelance business but could benefit from additional hardening measures.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  2. Implement standard security headers (CSP, X-Frame-Options, X-Content-Type-Options) to mitigate common web attacks.
  3. Add a Terms of Service page to clarify user and business obligations.
  4. Provide explicit contact emails or phone numbers for business and security incident reporting.
  5. Consider publishing a security policy and incident response plan to improve transparency and preparedness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Andreas Mourão dos Santos
Description
Portfolio website of Andreas Mourão dos Santos, a Freelance Creative Developer and Designer specializing in integrating AI technologies, creative coding techniques, and various CMS platforms to deliver engaging web systems and applications.
Key services
Web development, AI & Copywriting, Design
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, jQuery 3.5.1, Swiper.js, Webflow
Frameworks
Webflow
Platforms
Webflow CMS
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • Cookie consent with opt-in mechanism
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
Finsweet Cookie Consent
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional portfolio for a freelance creative developer and designer.
  2. Content is rich, well-structured, and visually appealing.
  3. Cookie consent and privacy policy are implemented, indicating GDPR awareness.
  4. No contact emails or phone numbers explicitly listed; contact is via form only.
  5. No Terms of Service or explicit security policy pages found.
  6. No security headers detected in provided data; opportunity for improvement.
  7. No analytics or tracking scripts detected beyond cookie consent.
  8. Domain is relatively new but consistent with business profile.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website is built using Webflow CMS with modern front-end technologies including HTML5, CSS3, JavaScript, jQuery 3.5.1, and Swiper.js for interactive sliders. The site is mobile-optimized with responsive design and good accessibility features such as focus-visible outlines. Performance is fast with asynchronous script loading and CDN usage. SEO is supported by proper meta tags and Open Graph data. No outdated or vulnerable libraries were detected. Hosting appears stable with domain registration via IONOS SE. Technical risks are minimal but could be reduced further by enabling DNSSEC and adding security headers. The site architecture supports scalability and maintainability for a freelance portfolio.
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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