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Security report for kursoff.biz

Privacy service provided by Withheld for Privacy ehf · Finance · Iceland

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

Security score

66/100

Risk levelMedium

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

Kursoff.biz is an online portal focused on cryptocurrency exchange monitoring, currency exchange rates, analytics, and news primarily targeting Ukrainian-speaking cryptocurrency users and traders. The website presents itself as a reliable source for up-to-date information in the crypto industry, offering services such as exchange monitoring and financial analytics. The business appears to be small-sized and established since 2016, with domain registration protected by privacy services, which is common in the cryptocurrency sector. Technically, the website is built using modern frameworks such as Next.js and Material-UI, indicating a contemporary and responsive design approach. It leverages Cloudflare DNS and Google Tag Manager for performance and analytics. The site is mobile-optimized and SEO-friendly, though accessibility features are basic. Performance is moderate, with no major technical issues detected. From a security perspective, the site enforces HTTPS and uses clientTransferProhibited domain status, enhancing domain security. However, DNSSEC is not enabled, and explicit security headers are not confirmed in the provided data. There is no visible privacy policy, cookie policy, or terms of service, which are critical for GDPR compliance and user trust. No incident response or vulnerability disclosure information is provided, which could be improved. Overall, Kursoff.biz is a legitimate and professionally presented cryptocurrency information portal with room for improvement in privacy compliance and security transparency. Strategic recommendations include publishing comprehensive privacy and cookie policies, enabling DNSSEC, adding security headers, and providing vulnerability disclosure information to enhance trust and compliance.

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

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 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. 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 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 kursoff.biz

This scan found 24 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
20
Email security
70
DNS health
65
Network security
100
GDPR outside view
68
Average
66

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

Kursoff.biz operates in the niche cryptocurrency finance sector, providing exchange monitoring and analytics services. Its market positioning targets Ukrainian-speaking crypto users, a growing demographic in Eastern Europe. The business model revolves around aggregating and presenting exchange rates, news, and analytics, likely monetized through advertising or affiliate partnerships, though no explicit affiliate programs were detected. The company benefits from a mature domain age and consistent branding. The lack of explicit contact information and certifications suggests a small to medium-sized operation focused on digital presence rather than physical infrastructure. The use of privacy protection for domain registration aligns with industry norms for crypto-related businesses, balancing transparency with privacy needs.

Security posture

The website demonstrates a moderate security posture with HTTPS enforced and domain transfer protections in place. However, the absence of DNSSEC and explicit security headers reduces the overall security robustness. The lack of published privacy and cookie policies indicates potential compliance gaps with GDPR and other data protection regulations. No incident response or vulnerability disclosure mechanisms are visible, which limits the site's readiness to handle security incidents transparently. The use of Google Tag Manager introduces moderate user tracking, which should be disclosed in privacy documentation. Overall, while no critical vulnerabilities are evident, the site would benefit from enhanced security best practices and compliance documentation to improve user trust and regulatory adherence.

Recommendations

  1. Publish comprehensive privacy and cookie policies to ensure GDPR compliance and user transparency.
  2. Enable DNSSEC to strengthen DNS security and prevent spoofing attacks.
  3. Implement and explicitly declare security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Add a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  5. Provide clear contact information including support and incident response channels to enhance business credibility and user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Privacy service provided by Withheld for Privacy ehf
Description
Обміняти криптовалюту, готівку та електронні гроші вигідно з Kursoff 💸 Надійний моніторинг обмінників 🔍, курс валют 📊 та актуальні новини криптоіндустрії в одному місці
Key services
Cryptocurrency exchange monitoring, Currency exchange rates, Cryptocurrency industry news, Analytics
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, Material-UI, Cloudflare DNS
Frameworks
Next.js, Material-UI
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Domain status clientTransferProhibited
  • Use of privacy protection for WHOIS

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is primarily in Ukrainian with multi-language support.
  3. No explicit privacy, cookie, or terms of service pages found in the provided HTML.
  4. No contact emails or phone numbers explicitly found in the HTML content.
  5. Uses modern web technologies and frameworks.
  6. No visible security.txt or vulnerability disclosure information.
  7. No explicit business registration or certification information displayed.
  8. Uses Google Tag Manager for analytics and tracking.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built on a modern React-based framework (Next.js) with Material-UI for UI components, ensuring a responsive and visually consistent user experience. Hosting details are not explicit but DNS is managed via Cloudflare, suggesting reliable infrastructure. Performance is moderate with asynchronous loading of JavaScript chunks and preloading of fonts and scripts. SEO is well addressed with proper meta tags, Open Graph, and Twitter card metadata. Accessibility is basic but present. No CMS is detected, indicating a custom or headless architecture. The technical stack is current and supports scalability, though improvements in security headers and DNS configuration are recommended to reduce technical 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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