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Security report for rainbow.me

Rainbow · 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

Rainbow is a technology company specializing in open source, self-custodial cryptocurrency wallets primarily for Ethereum and related blockchain networks. The company offers wallet applications for mobile (iOS and Android) and desktop browsers, supporting multiple blockchain networks including Ethereum mainnet, Polygon, Arbitrum, Optimism, Binance Smart Chain, Base, and Zora. Rainbow positions itself as a privacy-focused, secure, and user-friendly wallet solution targeting crypto users, NFT collectors, and DeFi participants. The website content is professional, well-structured, and provides clear information about the product and support contact. Technically, the site uses modern web technologies including Framer for CMS, Google Tag Manager, and Cloudflare DNS services. Performance and mobile optimization are good, though accessibility features are basic. Security posture is solid with HTTPS enforced and privacy policies emphasizing no private key storage or PII collection, but lacks advanced security headers and published incident response policies. The domain is privacy protected but consistent with the business age and sector, indicating legitimacy. Overall, Rainbow demonstrates a mature digital presence with room for improvement in security transparency and privacy compliance mechanisms.

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

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"

  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 rainbow.me

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

€39.90one-time

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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
75
Security headers
55
Email security
85
DNS health
80
Network security
100
GDPR outside view
53
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

Rainbow operates in the competitive cryptocurrency wallet market with a focus on Ethereum and multi-chain support. Its open source and self-custodial approach appeals to privacy-conscious users. The business model appears to be centered on providing free wallet software with potential monetization through DeFi and NFT ecosystem integrations. The company targets a tech-savvy audience engaged in blockchain assets and decentralized finance. Rainbow's market position is that of a specialized technology provider with a medium-sized footprint. The use of privacy protection in WHOIS is justified given the crypto sector's sensitivity. The company maintains a clear support channel via email and provides comprehensive user guides. No direct partnerships or subsidiaries were identified from the website content. The business shows consistent branding and trust signals such as open source status and privacy commitments.

Security posture

Rainbow's security posture is generally good with HTTPS enforced and a clear stance on not storing private keys or collecting personal data. However, the website lacks visible security headers such as Content Security Policy, HSTS, or X-Frame-Options which could enhance protection against common web attacks. No vulnerability disclosures or security.txt files were found, and incident response contact information is not published. The use of Google Analytics and Tag Manager introduces moderate user tracking, but privacy policies indicate GDPR compliance. The absence of cookie consent mechanisms is a compliance gap. Overall, Rainbow demonstrates a privacy-conscious security culture but could improve transparency and technical defenses to strengthen trust and compliance.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security.
  2. Implement and publish a comprehensive security policy and incident response plan.
  3. Add standard security headers (CSP, HSTS, X-Frame-Options) to the website.
  4. Introduce a cookie consent banner to comply with privacy regulations.
  5. Consider publishing a security.txt file and vulnerability disclosure program to enhance transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rainbow
Description
Rainbow is an open source, self-custodial wallet for Ethereum and Ethereum based cryptocurrencies and collectibles. It supports NFTs and DeFi on Ethereum, Polygon, Optimism, Arbitrum, BSC, Base, and Zora networks. Available on iOS, Android, and desktop browsers.
Key services
Ethereum wallet, NFT exploration, DeFi access, Multi-network support
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Google Analytics, Cloudflare DNS, Framer (CMS/website builder)
Frameworks
Framer
Platforms
iOS, Android, Chrome, Brave, Edge, Arc, Firefox
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No private key storage
  • Privacy policy states no PII collection

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

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 challenge
  2. Content is professional and focused on crypto wallet services
  3. Privacy policy and contact email are clearly provided
  4. No phone numbers or physical addresses found
  5. No explicit security policy or incident response info published
  6. No cookie consent mechanism detected
  7. Use of Google Analytics and Tag Manager for tracking
  8. Domain uses privacy protection but is consistent with business age and sector
Technical notes

Notes

The website is built using Framer CMS, leveraging modern web fonts and responsive design techniques. It integrates Google Tag Manager and Google Analytics for tracking and marketing purposes. Hosting and DNS are managed via Cloudflare, providing CDN and security benefits. Performance is moderate with good mobile optimization. Accessibility is basic and could be improved with ARIA roles and better semantic markup. SEO is well addressed with meta tags and Open Graph data. The site does not expose sensitive data or use vulnerable libraries based on available information. Technical risks are low but could be mitigated further by adopting security best practices and improving privacy compliance mechanisms.
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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