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Security report for suilend.fi

Suilend · Technology · N/a

Medium risk. 9 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

58/100

Risk levelMedium

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

Suilend is a decentralized finance platform branded as "Sui's DeFi Suite," offering services such as lending, swapping, investment strategies, bridging, and a SEND feature. The platform targets DeFi users and crypto investors, positioning itself as an emerging player in the Sui blockchain ecosystem. The website is relatively new, consistent with the domain registration date in late 2023, and presents a modern but basic digital presence. Technically, the site uses React and Next.js frameworks, hosted on AWS CloudFront, with moderate performance and good mobile optimization. However, the site suffers from backend API access issues (403 errors) and lacks critical security headers, which impacts its security posture. Privacy and cookie policies are absent, and no contact information is publicly available, limiting compliance and trust. Overall, the platform shows promise but requires improvements in security, compliance, and transparency to enhance user trust and regulatory adherence.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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

9 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.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

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

  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';…

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

Keep watching suilend.fi

This scan found 26 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

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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
72
Security headers
30
Email security
60
DNS health
75
Network security
100
GDPR outside view
10
Average
58

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

Suilend operates in the blockchain technology sector, specifically focusing on decentralized finance services on the Sui blockchain. Its business model revolves around providing DeFi utilities such as lending, swapping, and bridging tokens. The platform appears to be a small startup with no publicly disclosed parent company or subsidiaries. Partnerships with domains like springsui.com and steamm.fi suggest a growing ecosystem collaboration. The lack of detailed business and contact information, combined with a recent domain registration, indicates an early-stage venture. The platform's competitive advantage lies in targeting the niche Sui blockchain DeFi market, but it must enhance transparency and compliance to build credibility and attract a broader user base.

Security posture

The website enforces HTTPS, which is a positive security baseline. However, it lacks essential security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options, and X-Content-Type-Options, which are critical for mitigating common web vulnerabilities. The presence of a 403 Forbidden error when fetching app data suggests potential backend access control issues or misconfigurations. No privacy or cookie policies are present, indicating compliance gaps with GDPR and other data protection regulations. The absence of contact information for incident response or security reporting further weakens the security posture. Overall, the security maturity is moderate but requires immediate attention to headers, backend stability, and compliance documentation.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options to enhance web security.
  2. Resolve backend API 403 errors to ensure reliable data access and user experience.
  3. Publish clear privacy and cookie policies to comply with GDPR and build user trust.
  4. Add visible contact information and establish an incident response channel for security and abuse reporting.
  5. Conduct a full security audit and penetration test to identify and remediate vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Suilend
Description
Sui's DeFi Suite
Key services
Lending, Swapping, Investment Strategies, Token Bridge, SEND service
Content quality
basic
Branding
consistent

Technology

Stack
React, Next.js, AWS CloudFront, MYSTEN DAPP KIT
Frameworks
Next.js
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
55/100
Good practices seen
  • HTTPS enforced

Analytics and tracking

Services
Vercel Analytics
Tracking level
minimal
Privacy practices
poor

Advertising

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

Site quality

Design
good
User experience
basic
Content relevance
basic
Navigation
good
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website is a decentralized finance platform focused on the Sui blockchain ecosystem.
  2. Content is minimal with some backend data fetch errors (403).
  3. No privacy, cookie, or terms of service pages found.
  4. No contact emails or phone numbers publicly listed.
  5. Uses modern web technologies and hosted on AWS CloudFront.
  6. No security headers detected, which is a security concern.
  7. No WAF or blocking mechanisms detected.
  8. Social media presence on Twitter and Discord.
  9. No explicit or adult content detected.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, leveraging AWS CloudFront for content delivery. The site is mobile-optimized and uses custom fonts and icons loaded efficiently. However, the site shows a loading spinner indicating dynamic content fetching, which currently fails with a 403 error, impacting user experience. No CMS is detected, suggesting a custom or static site generation approach. SEO metadata is present but minimal, with basic Open Graph tags and no JSON-LD structured data. Accessibility features are basic but present. Performance is moderate, with room for optimization especially around backend API reliability and error handling.
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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