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Security report for reactflow.dev

React Flow · Technology · N/a

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

62/100

Risk levelMedium

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

React Flow is a specialized React library focused on building node-based user interfaces such as workflow builders, no-code applications, and visualizers. The website serves as a comprehensive documentation and marketing platform, offering extensive tutorials, API references, examples, and a Pro subscription tier for advanced features. The business targets developers and software engineers seeking customizable graph and flow chart solutions. Technically, the site is built on modern frameworks including React and Next.js, hosted on Vercel, and employs best practices in performance, accessibility, and SEO. Security posture is strong with HTTPS and modern security headers, though explicit privacy and cookie policies are absent. The domain registration is consistent and transparent, supporting the legitimacy of the business. Overall, the site is professional, trustworthy, and well-positioned in the developer tools market.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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. 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 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

    • 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

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

Keep watching reactflow.dev

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
55
DNS health
80
Network security
100
GDPR outside view
35
Average
62

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

React Flow operates as a technology provider in the developer tools sector, offering an open source library with a commercial Pro tier. Its competitive advantage lies in its extensive documentation, active community, and advanced features accessible via subscription. Revenue streams likely include Pro subscriptions and enterprise licensing. The target market includes software developers building complex UI workflows and visualizations. Partnerships with related domains like xyflow.com enhance its ecosystem. Growth indicators include frequent updates, case studies, and a developer survey. Strategic observations suggest continued investment in developer experience and expanding Pro offerings to maintain market leadership.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and no visible vulnerabilities or exposed sensitive data. However, it lacks published security policies, incident response contacts, and vulnerability disclosure mechanisms, which are important for compliance and trust. GDPR compliance indicators are minimal due to missing privacy and cookie policies. The absence of contact information for security or data protection officers limits transparency. Overall, the security maturity is good but could be improved by formalizing policies and disclosure practices.

Recommendations

  1. Publish a clear and comprehensive privacy policy including GDPR compliance details.
  2. Implement a cookie consent mechanism and publish a cookie policy.
  3. Add a security policy page with incident response contacts and vulnerability disclosure information.
  4. Provide explicit contact information for data protection officer or security team.
  5. Enhance business credibility by listing company contact details and certifications if applicable.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
React Flow
Description
Highly customizable React library for workflow builders, no-code apps, image processing, visualizers, and more
Key services
React Flow library, Pro subscription with exclusive features, Documentation, tutorials, and examples, Case studies and customer success stories
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Zustand, TailwindCSS (optional), Puppeteer (for server-side image generation), Dagre, ELKjs, D3-force
Frameworks
React, Next.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of modern security headers
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected in scripts

Analytics and tracking

Services
Fathom Analytics
Tracking level
minimal
Privacy practices
basic

Advertising

Tracking pixels
Fathom Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional documentation and marketing site for React Flow, a React library.
  2. No privacy or cookie policies explicitly found on the main site content.
  3. No contact emails or phone numbers explicitly listed on the main site content.
  4. Strong technical documentation and example coverage.
  5. Use of modern web technologies and hosting on Vercel.
  6. Good SEO and accessibility practices observed.
  7. No signs of malicious or suspicious content.
  8. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built using React and Next.js frameworks, leveraging modern JavaScript and CSS technologies. Hosting on Vercel ensures fast global delivery and scalability. The site includes extensive documentation, examples, and tutorials, indicating a well-maintained content management approach. Performance is optimized with asynchronous script loading and minimal blocking resources. Accessibility features such as theme switching and semantic HTML are present. SEO is supported by comprehensive meta tags and Open Graph data. Technical risks are low, with no outdated or vulnerable libraries detected. Opportunities exist to integrate formal CMS or enhance automated compliance tooling.
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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