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Security report for hayl.in

Haylin Moore · Technology · N/a

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

Security score

53/100

Risk levelMedium

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

Haylin Moore's website serves as a personal professional portfolio and blog, highlighting his expertise as a software and network engineer with experience at notable companies such as Qumulo and Arista Networks. The site features detailed descriptions of projects, writings, and professional affiliations, targeting technology professionals and the open source community. The business model is centered on personal branding and sharing technical knowledge rather than commercial services. Technically, the website is well-implemented using modern HTML5, CSS (Pure.css), and JavaScript, with a responsive design optimized for mobile devices. The site loads quickly and provides a good user experience with clear navigation and professional content presentation. However, no CMS or hosting provider details are explicitly identified. From a security perspective, the site uses HTTPS as indicated by canonical URLs, but lacks explicit security headers and formal privacy or cookie policies. There are no forms or data collection points, reducing attack surface, but also no incident response or vulnerability disclosure mechanisms are present. No suspicious or vulnerable scripts were detected, and no sensitive data is exposed. Overall, the website is safe, professional, and trustworthy, but could improve its privacy compliance and security posture by adding policies, security headers, and contact information for security incidents.

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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  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 hayl.in

This scan found 23 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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Full report

€39.90one-time

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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
75
Security headers
15
Email security
60
DNS health
75
Network security
40
GDPR outside view
50
Average
53

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 website positions Haylin Moore as a skilled individual contributor in the technology sector, focusing on software and network engineering. The site leverages open source projects and professional blogging to build reputation and community engagement. The target audience includes peers, potential collaborators, and employers in the tech industry. The business model is non-commercial, emphasizing knowledge sharing and personal branding. The presence of links to employers and professional badges enhances credibility. There is no indication of revenue streams or commercial partnerships beyond professional affiliations. The site’s ecosystem includes GitHub repositories and connections to other technology professionals via badges and links. This suggests a strong network and active participation in the open source and tech communities. The site is small in scale, consistent with a personal portfolio rather than a corporate entity.

Security posture

The security posture of the website is moderate. HTTPS is used, ensuring encrypted communications. However, the absence of security headers such as Content-Security-Policy, X-Frame-Options, and others reduces protection against common web attacks. No forms or inputs reduce risk of injection or data leakage. The lack of privacy and cookie policies indicates a gap in compliance with GDPR and similar regulations. No incident response or vulnerability disclosure information is provided, which could delay mitigation of security issues if discovered. No vulnerabilities or suspicious patterns were detected in the content or scripts. The site does not use tracking or advertising technologies, minimizing privacy risks. Overall, the site is low risk but could benefit from enhanced security best practices and compliance documentation.

Recommendations

  1. Implement explicit privacy and cookie policies with GDPR compliance and user consent mechanisms.
  2. Add standard security headers (Content-Security-Policy, X-Frame-Options, Strict-Transport-Security) to improve security posture.
  3. Provide clear contact information for security incidents and consider publishing a vulnerability disclosure policy or security.txt file.
  4. Regularly audit and update any third-party scripts or dependencies to prevent vulnerabilities.
  5. Enhance transparency and trust by including terms of service and business contact details.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Haylin Moore
Description
Personal website and blog of Haylin Moore, a software and network engineer from the east coast, currently working at Qumulo and previously at Arista Networks. The site showcases projects, writings, and professional background.
Key services
Software engineering, Network engineering, Open source projects, Technical blogging
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS (Pure.css), JavaScript
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS implied by canonical link (https://hayl.in/)
  • No forms or inputs detected to be vulnerable
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Personal professional portfolio and blog site
  2. No privacy, cookie, or terms of service policies found
  3. No contact emails or phone numbers explicitly provided
  4. No forms or data collection mechanisms present
  5. Strong presence of open source projects and professional affiliations
  6. No advertising or tracking technologies detected
  7. Good technical implementation with responsive design and modern CSS
  8. No explicit security headers detected in HTML content
  9. No evidence of security incident response or vulnerability disclosure policies
Technical notes

Notes

The website is built with clean, valid HTML5 and uses Pure.css for styling, ensuring a lightweight and responsive design. JavaScript is minimal and used primarily for theme color switching and UI enhancements. The site does not rely on heavy frameworks or CMS platforms, reducing complexity and potential attack vectors. Performance is fast with good mobile optimization and accessibility features. SEO is supported by proper meta tags and Open Graph tags for social sharing. There is no evidence of technical debt or outdated technologies. Hosting provider and backend infrastructure details are not disclosed, limiting deeper infrastructure analysis.
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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