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Security report for lindenlab.com

Linden Research, Inc. · Technology · United States

Medium risk. 6 critical or high findings in Security headers, Email security and 1 other check.

Security score

67/100

Risk levelMedium

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

Linden Lab is a well-established technology company specializing in virtual worlds, primarily known for its flagship product, Second Life. The company has a strong market position as a pioneer in user-generated 3D virtual environments, serving a global audience of creators and users. Their business model revolves around enabling social interaction, content creation, and virtual commerce within their platform. Technically, the website is built on modern web technologies including Webflow CMS, jQuery, and integrates Google Tag Manager and reCAPTCHA for analytics and security. The site is hosted on Akamai infrastructure, ensuring fast performance and global availability. Security posture is strong with HTTPS enforcement, cookie consent mechanisms, and domain transfer protections, although DNSSEC is not enabled and some security headers could be improved. Privacy compliance is robust with clear policies and GDPR-aligned cookie consent. Overall, the website reflects a professional, trustworthy, and mature digital presence consistent with the company's long history and market leadership.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 100 · Low
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 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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

  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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching lindenlab.com

This scan found 25 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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Recommended

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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
60
DNS health
75
Network security
100
GDPR outside view
88
Average
67

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 lindenlab.com, from OffSeq Breach.

Total records
770
Employees
1
Customers
762
Third parties
7
Weak passwords
26%

Latest record dated 2025-07-20 · 13 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 lindenlab.com.

Select it in the checkout above.

Masked preview

  • –support-tools.agni.lindenlab.com2025-07-20

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

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

Linden Lab operates in the technology sector with a focus on virtual worlds and digital content creation. Their competitive advantage lies in their pioneering status and large, active user base in Second Life. Revenue streams include virtual goods marketplace transactions and platform services. The target customers are digital creators, gamers, and virtual community members. The company shows growth through media presence and strategic acquisitions such as Tilia LLC. Partnerships and subsidiary domains support intellectual property enforcement and platform operations. The company maintains a consistent brand and professional content, reinforcing credibility and trust in the market.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and use of Google reCAPTCHA to mitigate automated abuse. Cookie consent is implemented with granular user controls, supporting GDPR compliance. The domain is protected with clientTransferProhibited status, reducing risk of unauthorized transfers. However, DNSSEC is not enabled, which is a recommended enhancement for DNS security. Security headers like Content-Security-Policy and X-Content-Type-Options are not visibly set in the HTML, suggesting potential areas for improvement. No vulnerabilities or exposed sensitive data were detected in the content. Incident response and security policy pages are not publicly found, which could be improved to enhance transparency and readiness.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  2. Implement and publish a formal security policy and incident response page to improve transparency and preparedness.
  3. Add or verify presence of security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to mitigate common web vulnerabilities.
  4. Continue maintaining and updating cookie consent mechanisms to comply with evolving privacy regulations.
  5. Consider publishing contact information for a Data Protection Officer or security contact to enhance trust and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Linden Research, Inc.
Description
Linden Lab is the creator of Second Life, the largest and most successful 3D virtual world developed entirely by its users. The platform enables social interaction, content creation, and virtual commerce with a global user base.
Key services
Second Life virtual world, Marketplace for virtual items, Social networking and communication tools
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow CMS, jQuery, Google Tag Manager, Google reCAPTCHA, OneTrust Cookie Consent
Frameworks
Webflow
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA for bot protection
  • Cookie consent with granular controls
  • ClientTransferProhibited domain status

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
OneTrust Cookie Consent
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Comprehensive privacy and cookie policies with GDPR compliance.
  3. Clear business focus on virtual worlds and user-generated content.
  4. Use of modern web technologies and good security practices.
  5. No exposed sensitive data or vulnerabilities detected in HTML content.
  6. Active social media presence on Twitter and LinkedIn.
  7. Domain registration is longstanding and consistent with business claims.
Technical notes

Notes

The website is built using Webflow CMS, leveraging jQuery and Google Tag Manager for analytics and tracking. It uses Google reCAPTCHA for bot protection and OneTrust for cookie consent management. Hosting is via Akamai CDN, indicated by the Akamai nameservers, ensuring fast global content delivery. The site is mobile optimized with responsive design and good accessibility features. SEO is supported by proper meta tags and structured content. The technical implementation is modern and well-maintained, with no broken elements or errors detected. Opportunities exist to enhance security headers and DNS configuration to further reduce risk.
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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