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Security report for matdoes.dev

Technology · N/a

High risk. 8 critical or high findings in Network security, Security headers and 2 other checks.

Security score

49/100

Risk levelHigh

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

The website matdoes.dev is a personal portfolio site for a full-stack software developer named mat. It serves as a platform to showcase blog posts and projects, targeting a general audience interested in software development. The site uses modern web technologies, specifically the SvelteKit framework, ensuring a fast and responsive user experience. External links to GitHub, Matrix, and Ko-fi provide social and donation channels, enhancing community engagement. However, the site lacks formal privacy, cookie, and terms of service policies, which limits its compliance posture. From a technical perspective, the site demonstrates good implementation with module preloading and modern JavaScript frameworks, contributing to fast performance and good mobile optimization. Accessibility is basic but functional. Security measures such as HTTPS are assumed but not explicitly confirmed in the provided data, and no security headers were detected. There are no forms or data collection mechanisms present, reducing exposure to common web vulnerabilities. Security posture is moderate but could be improved by adding security headers, formal privacy and cookie policies, and explicit contact information for incident response. No vulnerabilities or suspicious patterns were detected. The domain uses privacy protection for WHOIS data, which is appropriate for a personal portfolio. Overall, the site is safe, professional, and suitable for general audiences. Strategic recommendations include implementing privacy and cookie policies, enhancing security headers, providing clear contact information, and improving accessibility features to strengthen compliance and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

8 findings rated critical or high. Fix these first.

  1. 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: Telnet

      Port 23 (Telnet) is publicly accessible - Telnet - Unencrypted remote access

      What to do: Immediately restrict access to Telnet using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  2. 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';…

  3. GDPR outside view

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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

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

Keep watching matdoes.dev

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

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
15
Email security
73
DNS health
90
Network security
0
GDPR outside view
50
Average
51
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 matdoes.dev, from OffSeq Breach.

No leaked records found

Breach holds no records for matdoes.dev right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The website represents a small-scale personal business model focused on individual branding and portfolio presentation. The key services include full-stack software development, blogging, and project showcasing. The target market is likely potential employers, collaborators, or clients interested in software development expertise. The site leverages social platforms like GitHub and Matrix for community interaction and Ko-fi for donations, indicating a community-supported approach. There is no indication of revenue streams beyond donations. The lack of formal business information and certifications suggests a sole proprietorship or freelance operation. The site maintains consistent branding and good content quality, positioning itself as a credible personal developer portfolio within the technology sector.

Security posture

The current security maturity level is basic. The site uses HTTPS (assumed from URL scheme) but lacks visible security headers such as Content-Security-Policy or Strict-Transport-Security. No forms or input fields reduce attack surface, but absence of security policies and incident response contacts limits preparedness. No vulnerability disclosures or security.txt files are present. Data protection practices are minimal due to lack of data collection. Overall, the security posture is adequate for a personal portfolio but would benefit from formalized policies and enhanced header configurations to improve resilience and compliance.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie policy to improve GDPR and privacy compliance.
  2. Add security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance security posture.
  3. Provide explicit contact information for security incidents and vulnerability disclosures to improve incident response readiness.
  4. Verify and enforce HTTPS with strong TLS configurations to ensure secure communications.
  5. Enhance accessibility features and mobile optimization to improve user experience and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
I'm mat, I do full-stack software development. This portfolio contains my blog posts and links to some of the projects I've made.
Key services
full-stack software development, blog content, project showcases
Content quality
good
Branding
consistent

Technology

Stack
SvelteKit, JavaScript, CSS, SVG
Frameworks
SvelteKit
Performance
fast
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
50/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is a personal portfolio for a full-stack developer named mat.
  2. No privacy, cookie, or terms of service policies found.
  3. No contact emails or phone numbers explicitly provided.
  4. No forms detected on the main page.
  5. Uses modern SvelteKit framework with module preloading for performance.
  6. External links to GitHub, Matrix, and Ko-fi indicate social and donation channels.
  7. No security headers or explicit SSL/TLS details available from provided data.
  8. No advertising or analytics scripts detected.
  9. Content is safe and suitable for general audiences.
  10. No signs of WAF or content blocking.
Technical notes

Notes

The website is built using the SvelteKit framework, leveraging modern JavaScript and CSS technologies. It employs module preloading to optimize performance and reduce load times. The design is clean and responsive, with SVG icons and custom fonts. No CMS or third-party analytics/tracking tools are detected, indicating a lightweight and privacy-conscious implementation. Hosting provider details are not available from the provided data. The site demonstrates good technical quality with fast performance and basic accessibility. Opportunities exist to improve SEO metadata and implement additional accessibility standards.
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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