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Security report for dnsimple.com

DNSimple Corporation · Technology · United States

Medium risk. 5 critical or high findings in GDPR outside view and SSL/TLS.

Security score

67/100

Risk levelMedium

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

DNSimple Corporation operates a professional DNS hosting and domain registration platform focused on automation and developer-friendly services. The company offers a range of services including domain registration, DNS hosting, SSL certificates, and email forwarding, targeting developers, system administrators, and small to medium businesses. Their market position is strong within the DNS automation niche, supported by transparent pricing, API access, and trusted by notable customers such as the Linux Foundation and ClickFunnels. Technically, the website is built on modern frameworks including Ruby on Rails and uses advanced analytics and marketing tools like PostHog and Drip. The site is fast, mobile-optimized, and well-structured for SEO and accessibility. Security posture is solid with HTTPS, CSRF protections, and multi-layered DDoS defense, although explicit incident response and vulnerability disclosure information are not publicly available. Privacy compliance is partially addressed with a comprehensive privacy policy but lacks a visible cookie consent mechanism. Overall, the website is professional, trustworthy, and technically mature, with minor improvements recommended in privacy transparency and security communication.

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

5 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.

    • 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

    • High

      Third-party services without privacy policy

      Detected services: Facebook, Twitter, LinkedIn, YouTube, Google Ads

      What to do: Document all third-party data sharing in your privacy policy

  2. 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

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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
70
Security headers
80
Email security
85
DNS health
90
Network security
40
GDPR outside view
35
Average
67

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

DNSimple's business model is subscription-based with tiered plans catering to individual users, teams, and enterprises. Their competitive advantage lies in automation, API accessibility, and integration with multiple programming languages and cloud providers. Revenue streams include domain registration fees, DNS hosting charges, and SSL certificate provisioning. The target customer segments include developers, agencies, and SMBs requiring reliable DNS and domain management. The company maintains a strong partnership ecosystem evidenced by customer logos and integrations. Growth indicators include a comprehensive API offering and continuous feature enhancements. Strategic observations suggest focusing on expanding enterprise features and enhancing compliance transparency to strengthen market trust.

Security posture

The security maturity level of DNSimple is good, with HTTPS enforced, CSRF tokens implemented, and multi-layered DDoS protection mentioned. No vulnerabilities or exposed sensitive data were detected in the website content. However, the absence of a public vulnerability disclosure policy and incident response contact reduces transparency and may impact trust from security-conscious customers. GDPR compliance is supported by a comprehensive privacy policy, but the lack of a cookie consent mechanism is a compliance gap. The security culture appears proactive but could benefit from enhanced communication and formalized disclosure processes.

Recommendations

  1. Implement a visible cookie consent banner to improve GDPR compliance and user transparency.
  2. Publish a formal vulnerability disclosure policy and security.txt file to enhance security transparency.
  3. Provide clear incident response contact information, such as security@ or abuse@ email addresses.
  4. Consider obtaining and displaying relevant security certifications (e.g., ISO 27001) to boost customer confidence.
  5. Enhance privacy policy details with explicit data retention and processing information.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DNSimple Corporation
Description
DNSimple delivers simple and secure automation for domain registration, primary DNS hosting, SSL certificates, and more.
Key services
Domain registration, DNS hosting, SSL certificates, Email forwarding, Domain Control Plane, API access
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, PostHog analytics, Drip marketing, Rails UJS, Vite, SVG graphics
Frameworks
Ruby on Rails
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • Use of CSRF tokens
  • HTTPS with valid SSL
  • Multi-layered DDoS defense mentioned
  • API authentication and scoped access
  • No exposed sensitive data in HTML

Analytics and tracking

Services
PostHog, Ahrefs Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google DoubleClick
Tracking pixels
Drip, PostHog, Ahrefs Analytics
Marketing tools
Drip, PostHog
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design
  2. Strong focus on developer-friendly DNS and domain management automation
  3. Clear pricing plans with transparent billing details
  4. Multiple social media and community engagement links present
  5. No explicit privacy cookie consent banner detected
  6. No direct contact emails or phone numbers publicly listed, contact via form
  7. Security best practices observed but incident response and vulnerability disclosure info limited
Technical notes

Notes

The website leverages a modern technology stack including Ruby on Rails, Vite for asset bundling, and JavaScript frameworks. It integrates advanced analytics and marketing tools such as PostHog and Drip, and uses SVG graphics for crisp visuals. Performance is optimized with asynchronous script loading and mobile responsiveness is excellent. The site uses CSRF tokens and HTTPS to secure user interactions. Technical debt appears low with up-to-date libraries and no deprecated technologies detected. Opportunities exist to improve technical documentation for security and privacy features and to enhance hosting provider transparency.
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

Earlier scans of this domain

  1. 64/100 +4Medium26 findingsView report
  2. 60/100Medium28 findingsView report
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