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Security report for simpleswap.io

Domains By Proxy, LLC · Finance · United States

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

69/100

Risk levelMedium

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

SimpleSwap is a cryptocurrency exchange platform established in 2018, offering easy crypto-to-crypto and fiat-to-crypto swaps without requiring user registration. It supports over 1500 cryptocurrencies and provides a loyalty program with cashback rewards. The platform targets cryptocurrency users seeking a simple and fast exchange experience. Technically, the website uses modern frameworks such as Next.js and Mantine UI, hosted behind Cloudflare DNS, and offers mobile apps on iOS and Android with high user ratings. Security posture is solid with HTTPS, domain registration locks, and a non-custodial model, though DNSSEC is not enabled and explicit security policies are absent. Privacy compliance is weak due to missing privacy and cookie policies. Overall, the site is professional, trustworthy, and well-integrated with major crypto partners and media outlets.

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

6 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 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 simpleswap.io

This scan found 22 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
77
Security headers
20
Email security
80
DNS health
85
Network security
100
GDPR outside view
53
Average
69

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

SimpleSwap holds a competitive position in the crypto exchange market by emphasizing ease of use, no registration, and wide currency support. Its business model revolves around facilitating quick swaps and fiat purchases with competitive rates and a loyalty program to retain users. The company has established partnerships with major exchanges and blockchain projects, enhancing its credibility and reach. Media coverage and a substantial number of Trustpilot reviews indicate a growing user base and market presence. The platform leverages affiliate marketing and analytics tools to drive growth and user engagement.

Security posture

The platform demonstrates a mature security posture with HTTPS enforcement, domain registration protections, and a non-custodial approach that minimizes risk of holding user funds. However, the absence of DNSSEC and lack of published security policies or incident response contacts represent gaps. No vulnerability disclosures or security.txt files were found, limiting transparency. User data collection is moderate with analytics and marketing scripts, but privacy compliance disclosures are missing, which could pose regulatory risks. Overall, the security maturity is good but could be improved with formal policies and enhanced domain security.

Recommendations

  1. Enable DNSSEC to strengthen domain name security and prevent DNS spoofing.
  2. Publish comprehensive privacy and cookie policies with clear consent mechanisms to improve GDPR compliance.
  3. Add a dedicated security policy page and incident response contact information to enhance transparency and trust.
  4. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  5. Provide clear and accessible contact information including support emails and phone numbers to improve user trust and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Domains By Proxy, LLC
Description
SimpleSwap is a cryptocurrency exchange that allows to swap BTC and altcoins in an easy way. SimpleSwap supports 300+ cryptocurrencies. Make Bitcoin to Ethereum, Litecoin crypto exchanges at the best rates!
Key services
cryptocurrency exchange, crypto-to-crypto swaps, fiat-to-crypto purchases, loyalty program with cashback
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, Mantine UI, Cloudflare DNS
Frameworks
Next.js
Platforms
iOS, Android
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Domain locked with multiple client*Prohibited statuses
  • Non-custodial exchange model (crypto sent directly to user wallets)

Analytics and tracking

Services
Mixpanel, Google Analytics, Growthbook
Tracking level
moderate
Privacy practices
poor

Advertising

Tracking pixels
Google Optimize
Marketing tools
Mixpanel, Growthbook, Freshchat
Transparency
good

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. No explicit privacy, cookie, or terms of service pages found in provided content.
  3. No direct contact emails or phone numbers found in the HTML content.
  4. Strong presence of partner and media domains indicating good market integration.
  5. Use of modern web technologies and frameworks.
  6. Good security posture with HTTPS and domain locks but missing DNSSEC and explicit security policies.
  7. Moderate user tracking with analytics and marketing tools but lacking visible privacy compliance disclosures.
  8. Content is professional, relevant, and safe for general audiences.
Technical notes

Notes

The website is built on a modern React-based framework (Next.js) with Mantine UI components, ensuring responsive design and good user experience across devices. Hosting via Cloudflare provides performance and security benefits. The site uses multiple analytics and marketing tools including Mixpanel, Google Analytics, and Growthbook, indicating a data-driven approach. Performance is moderate with optimized images and preloading strategies. Accessibility is basic but could be enhanced. SEO is well addressed with meta tags and structured data. Technical risks include missing DNSSEC and lack of explicit security headers beyond HTTPS.
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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