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Security report for sushi.com

Sushi Labs · Technology · N/a

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

75/100

Risk levelMedium

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

SushiSwap is a decentralized finance platform focused on enabling effortless cryptocurrency trading across more than 30 blockchain networks. The platform offers a powerful aggregator to secure the best rates in DeFi, targeting crypto traders and DeFi users globally. The website demonstrates a professional and modern design, leveraging React and Next.js frameworks, hosted on Vercel, ensuring fast performance and good mobile optimization. Privacy and cookie policies are implemented with consent mechanisms, reflecting compliance with GDPR standards. However, the absence of WHOIS data and registrant information introduces some uncertainty regarding domain legitimacy. Security posture is moderate, with no explicit security headers detected and no visible vulnerability disclosures or incident response contacts. Overall, the platform presents a trustworthy and professional front for DeFi services but would benefit from enhanced transparency in domain registration and security policies.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

4 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 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 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 sushi.com

This scan found 19 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

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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
69
Security headers
35
Email security
85
DNS health
90
Network security
100
GDPR outside view
68
Average
75

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

SushiSwap operates as a leading decentralized exchange and aggregator in the DeFi space, offering token swaps, limit orders, dollar-cost averaging, and cross-chain swaps. Its business model revolves around providing decentralized liquidity and trading services to cryptocurrency users. The platform's market position is strong within the DeFi ecosystem, supported by a large user base and multi-chain integration. The company targets technologically savvy crypto traders and DeFi enthusiasts. While the website content is professional and consistent, the lack of explicit contact information and WHOIS transparency may affect some users' confidence. The platform uses modern web technologies and analytics tools, indicating a mature digital infrastructure.

Security posture

The website employs HTTPS and includes cookie consent mechanisms, indicating basic security hygiene. However, no security headers such as Content Security Policy or HSTS were detected in the provided data, which could enhance protection against common web attacks. There is no evidence of a published security policy, incident response plan, or vulnerability disclosure program, which are important for transparency and trust in the security community. No exposed sensitive data or vulnerable libraries were identified in the HTML content. The overall security posture is moderate but could be improved by adopting additional security best practices and publishing relevant security documentation.

Recommendations

  1. Implement and verify HTTP security headers including CSP, HSTS, and X-Frame-Options to strengthen web security.
  2. Publish a clear security policy and incident response contact information on the website.
  3. Establish and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Enhance accessibility features to improve inclusivity and compliance with standards.
  5. Regularly audit and update third-party libraries and dependencies to mitigate vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sushi Labs
Description
Trade crypto effortlessly with SushiSwap, supporting over 30 chains and featuring a powerful aggregator for the best rates across DeFi.
Key services
crypto swapping, limit orders, dollar-cost averaging, cross-chain swaps
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, Radix UI, Toastify, Vercel Analytics, Vercel Speed Insights
Frameworks
Next.js, React
Platforms
Ethereum blockchain integration
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • cookie consent mechanism
  • no exposed sensitive data in HTML

Analytics and tracking

Services
Vercel Analytics
Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Vercel Analytics, Vercel Speed Insights
Marketing tools
Vercel Analytics
Transparency
basic

Site quality

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

Key observations

  1. WHOIS data unavailable, possibly due to privacy protection or domain configuration
  2. Website is a professional DeFi platform with multi-chain support
  3. Privacy and cookie policies are present with consent mechanisms
  4. No contact emails or phone numbers explicitly found in HTML
  5. No security.txt or explicit security policy found
  6. No terms of service page detected in provided content
  7. Modern React/Next.js tech stack with Vercel hosting
  8. No WAF or blocking detected, full content accessible
  9. No adult or questionable content detected
Technical notes

Notes

The website is built using a modern React and Next.js stack, hosted on Vercel, which provides fast loading times and good mobile responsiveness. The use of Radix UI and Toastify indicates attention to user interface and notification management. Analytics and performance monitoring are handled via Vercel's own tools. The site includes proper meta tags for SEO and social media sharing, enhancing discoverability. No CMS was detected, suggesting a custom or static site generation approach. Overall, the technical infrastructure is robust and well-optimized, though improvements in accessibility and security headers are recommended.
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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