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Security report for w3.org

World Wide Web Consortium · Technology · N/a

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

70/100

Risk levelMedium

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

The World Wide Web Consortium (W3C) is a globally recognized standards organization dedicated to developing web standards and guidelines that promote accessibility, internationalization, privacy, and security. Established in 1994, W3C holds a leadership position in the technology industry, serving a diverse audience including web developers, technology companies, researchers, and the public. Their business model centers on collaborative standards development with a broad membership base and community involvement. Technically, the W3C website demonstrates a mature and modern infrastructure utilizing HTML5, CSS3, and JavaScript with performance optimizations such as deferred script loading and font observation. The site is mobile-optimized, accessible, and SEO-friendly, reflecting a high level of digital maturity. The use of a custom CMS and well-structured navigation further enhance user experience. From a security perspective, the site enforces HTTPS with excellent SSL configuration and follows best practices by avoiding exposed sensitive data and vulnerable libraries. However, the absence of explicit security headers and a vulnerability disclosure mechanism suggests room for improvement in security transparency and incident response readiness. Overall, the W3C website is highly professional, trustworthy, and compliant with privacy regulations including GDPR. The lack of direct contact emails or phone numbers on the homepage is mitigated by a dedicated contact page. No blocking or WAF mechanisms interfere with content accessibility, enabling comprehensive analysis. Strategic recommendations include enhancing security headers, publishing a security.txt file, and providing clearer incident response contacts to further strengthen security posture and trust.

Scanned

This is an earlier scan of w3.org. View the latest report

NIS2 and GDPR posture

GDPR outside view
53/ 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

4 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"

  2. GDPR outside view

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

    • 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

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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Keep watching w3.org

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.

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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
67
Security headers
40
Email security
75
DNS health
85
Network security
100
GDPR outside view
53
Average
70

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

W3C operates as an essential entity in the technology sector, focusing on web standards development. Its competitive advantage lies in its authoritative role and long-standing history since 1994. Revenue streams likely include membership fees and sponsorships. The target customer segments encompass technology companies, developers, and research institutions. The organization maintains a robust partnership ecosystem with major industry players. Growth indicators include active community engagement and annual events like TPAC. Strategic observations highlight W3C's role as a neutral, trusted standards body with a global reach and influence.

Security posture

The website exhibits a strong security maturity level with enforced HTTPS and no visible vulnerabilities or exposed sensitive data. The absence of some security headers and a formal vulnerability disclosure process indicates moderate gaps in security transparency. There is no explicit incident response contact information, which could delay response to security incidents. Data protection practices appear aligned with GDPR compliance, supported by comprehensive privacy and cookie policies. The security culture is implied by the organization's mission and standards focus but could benefit from more explicit communication on security policies and incident handling.

Recommendations

  1. Implement and enforce security headers such as Content-Security-Policy, X-Content-Type-Options, and Strict-Transport-Security to enhance protection against common web attacks.
  2. Publish a security.txt file or a dedicated vulnerability disclosure page to facilitate responsible reporting of security issues.
  3. Provide clear incident response contact channels (e.g., security@ or abuse@ email addresses) to improve incident handling and transparency.
  4. Consider adding a cookie consent mechanism to comply with evolving privacy regulations and enhance user trust.
  5. Maintain and regularly update privacy and security policies to reflect current best practices and regulatory requirements.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
World Wide Web Consortium
Description
The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.
Key services
Development of web standards and guidelines, Community and member collaboration, Events and conferences (e.g., TPAC), Resources and developer tools
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, FontFaceObserver
Performance
fast
Mobile
excellent
Accessibility
excellent
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected
  • Secure script loading with defer attribute

Analytics and tracking

Tracking level
minimal
Privacy practices
excellent

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is comprehensive and relevant to web standards and community involvement.
  3. Strong emphasis on accessibility, privacy, and security principles.
  4. No signs of blocking or WAF interference.
  5. No visible contact emails or phone numbers on the homepage; contact is via a dedicated contact page.
  6. No explicit cookie consent banner detected, but cookie policy is present.
  7. No visible security.txt or vulnerability disclosure page.
  8. Social media presence includes Mastodon and GitHub links.
Technical notes

Notes

The website is built on modern web standards using HTML5, CSS3, and JavaScript, including the FontFaceObserver library for font loading optimization. The site uses deferred script loading to improve performance and is mobile-responsive with excellent accessibility features. The CMS appears custom-built, supporting a well-structured and content-rich site. Performance is fast with no broken elements detected. Opportunities exist to enhance security headers and implement a formal vulnerability disclosure mechanism. Overall, the technical infrastructure supports a robust and professional web presence aligned with the organization's mission.
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. 71/100 −1Medium29 findingsView report
  2. 72/100 +1Medium28 findingsView report
  3. 71/100Medium29 findingsView report
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