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Security report for crockford.com

Douglas Crockford · Technology · N/a

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

Security score

62/100

Risk levelMedium

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

The website www.crockford.com is a personal and professional site belonging to Douglas Crockford, a recognized expert in JavaScript and JSON technologies. The site offers educational content including blogs, books, videos, and developer tools, targeting programmers and technology enthusiasts. The business model appears to be centered on personal branding and educational content dissemination, with some monetization through book sales and speaking engagements. The site maintains a consistent and professional presentation with good content quality and clear navigation. Technically, the site uses modern web technologies including ES modules and custom JavaScript libraries. The performance is moderate with basic mobile optimization and accessibility features. No CMS or hosting provider information is evident. The site lacks advanced SEO and accessibility implementations but maintains a clean and functional design. From a security perspective, the site does not show evidence of HTTPS enforcement or security headers in the provided data, which lowers its security posture. No forms collect sensitive data, and no vulnerable libraries are detected. Privacy and cookie policies are absent, indicating compliance gaps. The WHOIS data is unavailable, which raises questions about domain registration legitimacy but does not detract from the professional nature of the content. Overall, the site is safe, trustworthy, and well-suited for its target audience but would benefit from improved security practices, privacy compliance, and WHOIS transparency to enhance trust and compliance.

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 crockford.com

This scan found 24 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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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
77
Security headers
15
Email security
70
DNS health
75
Network security
100
GDPR outside view
35
Average
62

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

Douglas Crockford's website positions him as a niche thought leader in the JavaScript and programming community. The business model is primarily educational and personal branding, with revenue likely from book sales, speaking engagements, and software tools. The target audience is developers and technology professionals seeking authoritative content. The site links to a network of reputable platforms and tools, reinforcing credibility. Growth indicators include active content updates and appearances. The partnership ecosystem includes developer tools and social platforms. The site operates as a small-scale, personal business with a strong reputation in its niche.

Security posture

The current security posture is moderate but with notable gaps. The absence of HTTPS enforcement and security headers reduces protection against common web threats. No privacy or cookie policies are present, which may expose the site to compliance risks under GDPR or similar regulations. No incident response or security contact information is provided. The site does not collect personal data, reducing risk exposure. Overall, the security culture appears minimal but sufficient for the site's scope. Improvements in security headers, HTTPS enforcement, and privacy compliance are recommended to strengthen the posture.

Recommendations

  1. Implement HTTPS with strict transport security (HSTS) to ensure encrypted communications.
  2. Add standard security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish clear privacy and cookie policies to comply with GDPR and other privacy regulations.
  4. Provide contact information for security incidents and data protection inquiries.
  5. Enhance accessibility and SEO features to improve user experience and discoverability.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Douglas Crockford
Description
Personal website of Douglas Crockford, a known figure in JavaScript and JSON development. The site provides educational content including blog posts, books, videos, slides, and tools related to JavaScript and programming.
Key services
Educational blog content, Books, Videos, JavaScript tools (e.g., JSLint), Speaking appearances
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS, JavaScript (ES Modules)
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • No forms collecting sensitive data
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is a personal/professional site for Douglas Crockford.
  2. No privacy, cookie, or terms of service policies found.
  3. No contact emails or phone numbers explicitly provided.
  4. No forms collecting personal data present.
  5. Site uses modern JavaScript modules and custom scripts.
  6. No security headers detected in provided data.
  7. No analytics or tracking scripts detected.
  8. External links mostly to reputable developer and social platforms.
  9. No advertising or third-party ad networks detected except affiliate referral link.
  10. Content is technical, educational, and safe for general audiences.
Technical notes

Notes

The website uses a clean, modern HTML5 structure with embedded CSS and JavaScript modules. Custom scripts for numeric computations demonstrate advanced JavaScript usage. No CMS or third-party analytics are detected, reducing complexity and potential vulnerabilities. Performance is moderate with room for optimization, especially for mobile devices. The lack of security headers and HTTPS enforcement are technical risks. The site is well-maintained with no broken elements or errors visible in the provided content.
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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