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Security report for rust-lang.org

Rust Team · Technology · N/a

Low risk. 2 critical or high findings in GDPR outside view.

Security score

81/100

Risk levelLow

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

Rust-lang.org is the official website for the Rust programming language, a modern systems programming language designed for performance, reliability, and productivity. The site serves a global developer audience with extensive documentation, community resources, and tooling information. It is supported by a strong open-source community and corporate sponsors through the Rust Foundation. Technically, the website is well-built with modern HTML5, CSS, and JavaScript, offering excellent mobile optimization, accessibility, and fast performance. Security posture is solid with HTTPS enforced and a published security disclosure policy, though some improvements such as explicit security headers and cookie consent mechanisms are recommended. The WHOIS data is incomplete, which slightly impacts trust but the overall legitimacy is supported by the website content and community presence. Overall, the site is professional, trustworthy, and serves as a key resource for Rust developers worldwide.

Scanned

This is an earlier scan of rust-lang.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

2 findings rated critical or high. Fix these first.

  1. 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

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Keep watching rust-lang.org

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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
90
Security headers
90
Email security
75
DNS health
80
Network security
100
GDPR outside view
53
Average
81

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention rust-lang.org, from OffSeq Breach.

Total records
390
Employees
0
Customers
354
Third parties
36
Weak passwords
16%

8 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for rust-lang.org.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Rust-lang.org occupies a leading position in the programming language market, focusing on systems programming with a strong emphasis on safety and performance. Its business model is community-driven and supported by corporate sponsorships, enabling sustainable development and governance. The target audience includes software developers, enterprises building performance-critical applications, and embedded systems engineers. The website ecosystem includes multiple language localizations, community forums, and educational resources, indicating a mature and engaged user base. Partnerships with the Rust Foundation and corporate sponsors enhance credibility and resource availability. The absence of direct commercial offerings suggests a focus on open-source community growth and ecosystem expansion.

Security posture

The website demonstrates a mature security posture with enforced HTTPS and a dedicated security disclosure policy. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options represents an area for improvement. No visible vulnerabilities or exposed sensitive data were detected in the provided content. The lack of a security.txt file and explicit incident response contact information limits transparency for vulnerability reporting. Privacy compliance is strong with a comprehensive privacy policy and GDPR considerations, though cookie consent mechanisms are missing. Overall, the security culture appears proactive but could benefit from enhanced header configurations and clearer incident response channels.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to mitigate common web attacks.
  2. Introduce a cookie consent banner or mechanism to comply fully with privacy regulations and improve user transparency.
  3. Publish a security.txt file to facilitate responsible vulnerability disclosure and improve incident response readiness.
  4. Provide explicit security incident contact information (e.g., security@rust-lang.org) on the website.
  5. Regularly audit third-party dependencies and scripts to ensure no vulnerable libraries are included.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rust Team
Description
Rust is a programming language empowering everyone to build reliable and efficient software. It is used by hundreds of companies worldwide for performance-critical services, embedded devices, and scalable web services.
Key services
Programming language development, Documentation and learning resources, Community support and governance, Tooling and ecosystem development
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS, JavaScript
Performance
fast
Mobile
excellent
Accessibility
excellent
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Security disclosure policy
  • Code of conduct and governance

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

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 content and multiple language support.
  2. Strong community and corporate backing evident.
  3. No contact emails or phone numbers explicitly listed on the main site.
  4. No cookie consent mechanism detected despite privacy policy presence.
  5. No visible security headers in HTML source; HTTPS is used.
  6. No analytics or tracking scripts detected in provided HTML.
  7. Social media presence includes Mastodon, Bluesky, YouTube, GitHub.
  8. No forms detected in the HTML content.
  9. No JSON-LD structured data found.
  10. No explicit security.txt file found.
Technical notes

Notes

The website uses a clean and modern technical stack primarily based on HTML5, CSS, and JavaScript without reliance on heavy frameworks or CMS platforms. It features responsive design and accessibility best practices, supporting multiple languages and locales. Performance is fast with minimal external dependencies. No analytics or tracking scripts were detected, indicating a privacy-conscious approach. Hosting details are not explicitly available from the content. The site could benefit from adding structured data (JSON-LD) to improve SEO and machine readability. Overall, the technical implementation is robust with opportunities for incremental improvements in security and SEO.
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. 68/100Medium32 findingsView report
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