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Security report for mjtsai.com

C-Command Software · Technology · United States

High risk. 8 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

49/100

Risk levelHigh

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

Michael Tsai's website serves as a personal and professional platform showcasing his work as a Mac developer at C-Command Software. The site features blogs on technology and hiking, links to his Mac applications, and social media profiles, establishing a niche presence in the Mac software community. The business model combines software sales, personal content publishing, and affiliate marketing through Amazon Associates. The website is hosted on DreamHost and built on WordPress, indicating a moderate level of digital maturity with caching for performance optimization. From a security perspective, the site benefits from HTTPS encryption and domain transfer/update protections, but lacks advanced security headers and DNSSEC, which could enhance its security posture. There is no evidence of formal privacy or cookie policies, which presents compliance gaps, especially regarding GDPR. No incident response or vulnerability disclosure mechanisms are present, limiting transparency in security matters. Overall, the website is professionally maintained with good content quality and trustworthiness, but improvements in privacy compliance and security best practices are recommended to strengthen its risk profile. The absence of WAF or blocking mechanisms allows full content accessibility and analysis.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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 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. 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

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

Keep watching mjtsai.com

This scan found 27 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.

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  • 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
62
Security headers
15
Email security
70
DNS health
70
Network security
40
GDPR outside view
35
Average
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
  • 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 represents a small technology business focused on Mac software development and personal content creation. Its market positioning is niche, targeting Mac users and technology enthusiasts. Revenue streams include software sales and affiliate marketing. The site demonstrates a consistent brand and professional content, supported by a long domain registration history. Partnerships with hosting providers and affiliate programs are evident, but no large-scale partnerships or subsidiaries are identified. Growth indicators are modest, reflecting a personal business model rather than enterprise scale.

Security posture

The security maturity level is moderate, with HTTPS enabled and domain transfer protections in place. However, the lack of DNSSEC, security headers, and formal privacy/cookie policies indicates areas for improvement. No vulnerabilities or exposed sensitive data were detected. The absence of incident response contacts or vulnerability disclosure reduces preparedness for security incidents. Overall, the site maintains a baseline security posture suitable for a small personal business but should enhance compliance and security transparency.

Recommendations

  1. Enable DNSSEC to improve DNS integrity and prevent spoofing.
  2. Implement standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Publish clear privacy and cookie policies to improve GDPR and privacy compliance.
  4. Add a security.txt file or vulnerability disclosure page to facilitate responsible reporting.
  5. Consider adding accessibility improvements and mobile optimization enhancements.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
C-Command Software
Description
Personal website and blog of Michael J. Tsai, a Mac developer at C-Command Software, featuring tech and hiking blogs, photos, and links to Mac apps developed by the company.
Key services
Mac software development, Blogging and content publishing, Affiliate marketing via Amazon Associate program
Content quality
good
Branding
consistent

Technology

Stack
HTML, CSS, JavaScript, WordPress, WP Super Cache
Platforms
WordPress
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • Domain status clientTransferProhibited and clientUpdateProhibited set

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Ad networks
carbonads
Transparency
basic

Site quality

Design
basic
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is a personal and professional blog of a Mac developer with links to software products.
  2. No privacy or cookie policies found, which may impact compliance.
  3. No security.txt or vulnerability disclosure information present.
  4. Uses HTTPS and reputable hosting but lacks advanced security headers.
  5. Content is safe, professional, and targeted at a general audience.
  6. No phone numbers or physical addresses found.
  7. Social media presence includes Mastodon and Twitter.
  8. Affiliate marketing via Amazon Associates is disclosed.
  9. Minimal tracking or analytics detected.
  10. Site uses WordPress with caching plugin for performance.
Technical notes

Notes

The website is built on WordPress with WP Super Cache for performance, hosted by DreamHost. The technology stack includes standard HTML, CSS, and JavaScript without heavy frameworks. Performance is moderate with basic mobile optimization and SEO practices in place. The site lacks advanced technical features such as structured data (JSON-LD) or Open Graph metadata. No analytics or tracking scripts were detected beyond an ad network script. Technical debt appears low, but modernization opportunities include enhanced security headers and improved accessibility.
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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