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Security report for ls.app

Legendary Software LTD · Technology · United Kingdom

Medium risk. 7 critical or high findings in Email security, SSL/TLS and 2 other checks.

Security score

51/100

Risk levelMedium

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

Linken Sphere, operated by Legendary Software LTD, is a professional antidetect browser solution designed for users requiring advanced anonymity, multi-account management, and automation capabilities. The company positions itself as an innovative leader in the antidetect browser market, with a history dating back to 2017 and a user base exceeding one million. Their product offers a rich feature set including hybrid technology, real device pools, mobile emulation, and team collaboration tools, supported by a tiered subscription model. The website reflects a mature digital presence with excellent design, clear navigation, and comprehensive content tailored to professionals in affiliate marketing and arbitrage. Technically, the website leverages modern web technologies such as React and Next.js, with integrations for analytics and user behavior tracking via Facebook Pixel, Google Tag Manager, Yandex Metrika, and Hotjar. The site is well-optimized for performance and mobile responsiveness, providing a seamless user experience. Security practices include HTTPS enforcement, security headers, and emphasis on local data storage for user safety. However, the absence of a visible cookie consent mechanism and dedicated security policy pages indicates areas for improvement in privacy compliance. The security posture is strong, with no evident vulnerabilities or exposed sensitive data. WHOIS data confirms the legitimacy of the business with consistent registration details matching the website's claims. The company maintains active communication channels including email support and Telegram community groups, enhancing user trust and engagement. Overall, Linken Sphere demonstrates a robust business and technical foundation with a focus on security and user privacy, though enhancements in privacy transparency and incident response documentation would further strengthen their compliance and trustworthiness.

Scanned

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

7 findings rated critical or high. Fix these first.

  1. 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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  3. 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"

    • 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';…

  4. 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

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

Keep watching ls.app

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.

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

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
0
Security headers
30
Email security
40
DNS health
80
Network security
100
GDPR outside view
53
Average
51

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

Linken Sphere operates in the technology sector, specifically targeting professionals requiring anonymity and multi-account management online. Their subscription-based business model offers multiple pricing tiers catering to individual users and teams, emphasizing scalability and automation. The company has established a strong market position with a legacy product and a large user base. Strategic partnerships with proxy providers and marketing platforms enhance their ecosystem and service offerings. The website's content and partner integrations indicate a focus on affiliate marketers, arbitrageurs, and privacy-conscious professionals. Growth indicators include continuous product updates, community engagement, and comprehensive documentation. The company’s transparent UK registration and physical address support credibility and operational stability.

Security posture

The website exhibits a mature security posture with HTTPS enforced and multiple security headers implemented, including HSTS, X-Content-Type-Options, and Content-Security-Policy. The product emphasizes local data storage to enhance user data security. No vulnerabilities or exposed sensitive information were detected in the website content or scripts. However, the lack of a published security policy or incident response plan and absence of a vulnerability disclosure program represent compliance gaps. The use of third-party analytics and tracking scripts without explicit cookie consent may pose privacy risks. Overall, the security culture appears proactive but could benefit from enhanced transparency and formalized policies.

Recommendations

  1. Implement a visible cookie consent banner to comply with privacy regulations and enhance user trust.
  2. Publish a dedicated security policy and incident response plan accessible from the website.
  3. Establish a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Enhance transparency regarding data retention and processing practices in privacy documentation.
  5. Regularly review and audit third-party scripts and dependencies to mitigate potential security risks.

Contact details published on the site

Addresses
Legal name
Legendary Software LTD
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Legendary Software LTD
Description
Linken Sphere offers a professional antidetect browser tool designed for multi-accounting and anonymity on the internet, targeting professionals who require secure and flexible browsing solutions.
Key services
Antidetect browser software, Multi-account management, Automation and API integration, Proxy and session management, Team collaboration features
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, CSS, WebAssembly (possible), Facebook Pixel, Google Tag Manager, Yandex Metrika, Hotjar
Frameworks
Next.js, React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Local data storage emphasized for security
  • Proxy quality checks
  • Session backup and logs
  • No exposed sensitive data detected

Analytics and tracking

Services
Google Analytics (via GTM), Yandex Metrika, Hotjar
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, Yandex Metrika, Hotjar
Marketing tools
Hotjar
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. Professional and modern design with clear navigation and rich content.
  3. Strong focus on security and anonymity features in product offerings.
  4. Comprehensive pricing plans with clear feature differentiation.
  5. Active community engagement via Telegram chat and channel.
  6. Use of multiple analytics and tracking services without explicit cookie consent banner.
  7. No visible security or privacy policy documents beyond privacy notice and license agreement.
  8. WHOIS data supports legitimacy and business transparency.
Technical notes

Notes

The website is built on a modern React and Next.js framework, ensuring server-side rendering and optimized performance. It uses advanced frontend technologies and integrates multiple analytics and tracking services. The site is mobile-optimized with responsive design and accessibility considerations. Performance is fast with efficient asset loading and caching strategies. No CMS is detected, indicating a custom or headless architecture. Hosting provider details are not explicitly available. The technical implementation supports scalability and user experience but should address privacy compliance mechanisms and security policy disclosures to reduce technical debt and regulatory 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

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