Skip to main content

Security report for arp242.net

Martin Tournoij · Technology · N/a

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

59/100

Risk levelMedium

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

The website arp242.net is a personal site owned by Martin Tournoij, focusing on programming topics, open source projects, and technical writings. It serves as a hub for various Go libraries, Vim plugins, and other software tools, targeting developers and the open source community. The site is well-maintained with a consistent brand and high-quality content, reflecting a small-scale but professional personal brand. Technically, the site uses modern web standards with clean HTML, CSS, and JavaScript. It integrates GoatCounter for privacy-conscious analytics and hosts numerous GitHub repositories linked directly from the site. The site is mobile optimized, accessible, and performs well, though it lacks a CMS or complex frameworks. From a security perspective, the site enforces HTTPS and avoids collecting sensitive user data, which reduces risk. However, it lacks explicit security headers, privacy and cookie policies, and vulnerability disclosure information. The WHOIS data is missing or unavailable, which raises questions about domain registration legitimacy despite the active and professional site presence. Overall, the site presents a low-risk profile with strong content and technical quality but would benefit from improved privacy compliance and clearer domain registration transparency. Strategic recommendations include publishing privacy and cookie policies, adding security headers, and providing vulnerability disclosure details to enhance trust and compliance.

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. 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 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. 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

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

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

Keep watching arp242.net

This scan found 26 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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
30
Email security
70
DNS health
60
Network security
100
GDPR outside view
50
Average
59

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

arp242.net operates as a personal brand and open source software hub for Martin Tournoij. The business model centers on community engagement through free software projects and technical blogging. The site’s market position is niche, appealing primarily to developers interested in Go programming, Vim tooling, and related technologies. Revenue streams are not explicit but may include GitHub sponsorships and indirect benefits from open source contributions. The target audience is technically skilled individuals and open source enthusiasts. The site demonstrates growth through active project maintenance and frequent content updates. Partnerships are limited to open source collaborations and GitHub sponsorships. The business operates independently without parent or subsidiary companies.

Security posture

The security posture of arp242.net is moderate to good. The site uses HTTPS exclusively, ensuring encrypted communications. It avoids collecting personal data via forms, minimizing attack surface. The use of GoatCounter analytics reflects a privacy-conscious approach. However, the absence of security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces defense-in-depth. There is no published incident response or vulnerability disclosure policy, which limits transparency and preparedness. The missing WHOIS data is a concern for domain legitimacy and trust. Compliance with GDPR and other privacy regulations is unclear due to lack of privacy and cookie policies. Overall, the site is low risk but could improve security maturity by adopting best practices and transparency measures.

Recommendations

  1. Publish comprehensive privacy and cookie policies to improve compliance and user trust.
  2. Implement standard security headers (CSP, HSTS, X-Frame-Options) to enhance protection against common web attacks.
  3. Add a vulnerability disclosure policy or security.txt file to facilitate responsible reporting and incident management.
  4. Provide clear domain registration information or ensure WHOIS data is available to improve legitimacy and trustworthiness.
  5. Consider adding a contact form with spam protection to facilitate communication while maintaining security.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Martin Tournoij
Description
Personal website of Martin Tournoij (arp242) featuring writings about programming and various other topics, along with multiple open source code projects and tools.
Key services
Open source projects, Programming articles, Go libraries and tools, Vim plugins
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Go (backend projects), GitHub, GoatCounter analytics
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced (canonical link uses https)
  • No forms collecting sensitive data
  • No exposed credentials or sensitive data

Analytics and tracking

Services
GoatCounter
Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a personal technical blog and open source project hub.
  2. No privacy or cookie policies found despite analytics usage.
  3. Contact email is provided but no phone or physical address.
  4. No forms or user data collection mechanisms present.
  5. No security.txt or vulnerability disclosure information.
  6. Uses GoatCounter for privacy-focused analytics.
  7. No advertising or tracking networks detected.
  8. Website is well designed, mobile optimized, and accessible.
  9. WHOIS data is missing, which is a concern for domain legitimacy.
Technical notes

Notes

The website is built with clean, semantic HTML5 and CSS3, ensuring good accessibility and responsive design. JavaScript is used primarily for UI enhancements and analytics integration with GoatCounter. The site does not rely on heavy frameworks or CMS platforms, reducing complexity and potential vulnerabilities. The hosting environment is unknown but the site uses HTTPS with a valid certificate, indicating a secure hosting setup. Performance is fast with minimal external dependencies. The site links extensively to GitHub repositories, reflecting a strong integration with modern development workflows. There is an opportunity to improve technical robustness by adding security headers and formalizing privacy and compliance documentation.
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

Earlier scans of this domain

  1. 63/100Medium32 findingsView report
Reviews of this site

Share your experience with arp242.net. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review arp242.net.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.