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Security report for wireguard.com

ZX2C4 · Technology · N/a

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

58/100

Risk levelMedium

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

WireGuard is a modern, high-performance VPN protocol and software project focused on simplicity, security, and speed. The project is led by Jason A. Donenfeld and hosted under the ZX2C4 organization, with strong emphasis on cryptographic soundness and minimal attack surface. The website provides comprehensive technical information, installation guides, and community resources, positioning WireGuard as a leading VPN solution in the technology sector. The digital infrastructure uses modern web technologies and analytics tools, delivering a fast and accessible user experience. Security posture is solid with HTTPS and no exposed sensitive data, though improvements are recommended in security headers and privacy compliance documentation. The absence of WHOIS registration data is unusual but does not detract significantly from the overall trustworthiness given the project's transparency and community presence. Strategic recommendations include publishing privacy and cookie policies, enhancing security headers, and adding a security.txt file to improve vulnerability disclosure processes.

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

6 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 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics

      What to do: Document all third-party data sharing in your privacy policy

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

Keep watching wireguard.com

This scan found 21 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
65
Security headers
60
Email security
65
DNS health
85
Network security
40
GDPR outside view
35
Average
58

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

WireGuard operates as an open-source project targeting technology professionals and security-conscious users seeking a performant VPN solution. Its competitive advantage lies in its simplicity, cryptographic rigor, and cross-platform support. The business model relies on community contributions and donations rather than commercial licensing. The project maintains partnerships with ZX2C4 and Edge Security, enhancing its credibility and research capabilities. Growth indicators include widespread adoption and active development discussions via IRC and mailing lists. The ecosystem is supported by transparent communication channels and a clear security contact. The project’s market position is strong within the VPN and network security domain, with a focus on developer and enterprise adoption.

Security posture

WireGuard demonstrates a mature security posture with a minimal attack surface design, use of state-of-the-art cryptography, and clear security contact channels. The website itself uses HTTPS and avoids exposing sensitive information. However, the lack of explicit security headers such as Content-Security-Policy and absence of published privacy and cookie policies represent compliance gaps. Incident response readiness is indicated by a dedicated security email, but no formal vulnerability disclosure policy or security.txt file is present. Overall, the security culture appears strong but could benefit from formalizing policies and enhancing web security controls to align with best practices and regulatory requirements.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy to improve GDPR and privacy compliance.
  2. Implement standard security headers (CSP, X-Frame-Options, X-Content-Type-Options) to harden the website against common web attacks.
  3. Create and publish a security.txt file to formalize vulnerability disclosure and improve incident response transparency.
  4. Add terms of service and data protection officer contact information to enhance legal compliance and user trust.
  5. Regularly audit WHOIS registration details and ensure domain registration information is accurate and publicly available to avoid trust concerns.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ZX2C4
Description
WireGuard is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec and OpenVPN. It is designed as a general purpose VPN for embedded interfaces and supercomputers, cross-platform and widely deployable.
Key services
VPN protocol development, Cross-platform VPN software, Cryptographic protocol design
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Google Analytics, Google Tag Manager, FontAwesome
Frameworks
Bootstrap
Platforms
Linux, Windows, macOS, BSD, iOS, Android
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • Use of HTTPS
  • No exposed sensitive data in HTML
  • Security contact clearly provided

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich technical content about WireGuard VPN.
  2. No privacy or cookie policies found on the main site.
  3. Contact emails for team and security are clearly provided.
  4. No phone numbers or physical addresses found.
  5. No forms detected on the main page.
  6. Use of modern web technologies and analytics tools.
  7. No explicit security headers detected in HTML content.
  8. WHOIS data missing or unavailable, which is unusual for a .com domain.
  9. Strong branding and consistent messaging about VPN technology.
  10. No suspicious or malicious content detected.
Technical notes

Notes

The website is built using modern web standards including HTML5, CSS3, JavaScript, and Bootstrap framework. It integrates Google Analytics and Google Tag Manager for traffic analysis and marketing. The site is mobile optimized and accessible with clear navigation and professional design. Performance is fast with minimal external dependencies. No CMS is detected, indicating a custom or static site approach. Hosting provider details are not disclosed. The technical stack supports cross-platform VPN software documentation and community engagement. Opportunities exist to improve security headers and formalize privacy and security policies to reduce technical risks.
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. 58/100Medium26 findingsView report
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