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Security report for tensor.trade

Tensor · Technology · N/a

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

71/100

Risk levelMedium

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

Tensor is a leading NFT marketplace operating on the Solana blockchain, offering a platform for buying, selling, and trading NFTs. It is backed by reputable investors including Placeholder VC and Solana Ventures, which positions it strongly within the NFT and blockchain ecosystem. The website presents a modern, professional interface with clear branding and a focus on user engagement through rewards and referral programs. Technically, the site leverages modern web technologies such as React, Next.js, and Chakra UI, ensuring a responsive and performant user experience. Security-wise, the site enforces HTTPS and follows good practices, though it lacks some advanced security headers and explicit incident response information. Privacy policies are comprehensive and GDPR compliant, but cookie consent mechanisms are absent. Overall, Tensor demonstrates a mature digital presence with room for improvement in security transparency and user contact accessibility.

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

5 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"

    • 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 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

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

Keep watching tensor.trade

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

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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
75
Security headers
30
Email security
85
DNS health
80
Network security
100
GDPR outside view
53
Average
71

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

Tensor operates in the fast-growing NFT marketplace sector on the Solana blockchain, targeting crypto enthusiasts, NFT collectors, and traders. Its business model centers on facilitating NFT transactions with added incentives like rewards and referrals to drive user engagement. The backing by well-known venture capital firms and Solana founders enhances its credibility and market position. The platform's ecosystem includes partnerships with Solana Ventures and Placeholder VC, and it maintains active social media channels for community engagement. Growth indicators include a diverse set of NFT collections and creators featured on the platform. Strategic observations suggest focusing on expanding contact and security transparency to build further trust and compliance.

Security posture

The website exhibits a solid security posture with HTTPS enforced and no visible exposure of sensitive data or vulnerable libraries. However, it lacks explicit security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options, which are recommended to mitigate common web attacks. There is no publicly available security policy or incident response contact information, which could hinder timely reporting and handling of security incidents. The absence of a vulnerability disclosure policy or security.txt file limits transparency for security researchers. Privacy compliance is strong with a comprehensive privacy policy, but cookie consent mechanisms are missing. Overall, the security maturity is good but can be enhanced by adopting additional headers, publishing security policies, and improving incident response readiness.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, and X-Frame-Options to strengthen web security.
  2. Add a cookie consent banner/mechanism to comply with privacy regulations and enhance user trust.
  3. Publish a clear security policy and incident response contact information to facilitate vulnerability reporting and incident management.
  4. Develop and publish a vulnerability disclosure policy or security.txt file to encourage responsible security research.
  5. Enhance accessibility features to improve usability for all users and comply with accessibility standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tensor
Description
Tensor is the #1 NFT Marketplace on Solana. Backed by Placeholder VC, Solana Ventures, and Solana founders Toly and Raj.
Key services
NFT marketplace, NFT trading, Rewards program, Referral program
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, Chakra UI, JavaScript, Solana blockchain integration, TipLink embedded wallet
Frameworks
Next.js, Chakra UI
Platforms
Solana blockchain
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. WHOIS data is unavailable, indicating privacy protection or registry limitations.
  3. Website is focused on NFT marketplace on Solana blockchain.
  4. Strong branding and backing by reputable investors.
  5. No direct contact emails or phone numbers found on main site.
  6. Privacy and Terms of Service policies are present and comprehensive.
  7. No cookie consent mechanism detected.
  8. No explicit security policy or incident response information found.
  9. No vulnerability disclosure or security.txt found.
  10. Social media presence includes Twitter and Discord.
Technical notes

Notes

The website is built using a modern technology stack featuring React and Next.js frameworks, complemented by Chakra UI for styling and UI components. Integration with Solana blockchain and embedded wallet solutions like TipLink indicates advanced blockchain interoperability. The site demonstrates good mobile optimization and SEO practices with appropriate meta tags and Open Graph data. Performance is moderate, with deferred loading of scripts and prefetching techniques employed. However, there is no explicit CMS detected, and hosting provider details are not evident from the HTML. Technical risks are minimal but could include potential improvements in accessibility and security header implementation to reduce attack surface and improve compliance.
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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