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Security report for rebuyengine.com

Rebuy · E-commerce · N/a

Low risk. 3 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

76/100

Risk levelLow

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

Rebuy is a specialized ecommerce personalization platform focused on Shopify merchants, offering AI-driven tools to enhance customer experience, increase average order value, and reduce churn. The company positions itself as a leader in ecommerce personalization with a comprehensive suite of products including smart carts, merchandising widgets, dynamic bundles, checkout extensions, and post-purchase offers. Their platform integrates with major ecommerce and marketing tools, leveraging data-driven insights to optimize shopping journeys. Technically, the website is built on HubSpot CMS and employs modern web technologies including JavaScript, SVG graphics, and integrates with Google Analytics, Facebook Ads Pixel, and HubSpot analytics for marketing and tracking. The site is well-optimized for mobile devices, has good SEO practices, and provides a smooth user experience with clear navigation and professional design. From a security perspective, the site uses HTTPS and cookie consent mechanisms, indicating a baseline of privacy compliance. However, explicit security headers and incident response information are not clearly documented. The absence of WHOIS data for the domain raises some concerns about domain registration transparency, though the website content and branding appear legitimate and professional. Overall, Rebuy demonstrates a mature digital presence with strong business credibility and technical implementation. Strategic improvements in security transparency and domain registration clarity would further 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

3 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Unregistered MX Record

      MX record points to unregistered domain: k6loxto4elkezc6e3auwtmh4i5rme4kqxsysdl7vgw3hbcohro5q.mx-verification.google.com

      What to do: Remove or fix MX record pointing to unregistered domain

      • RFC 5321 §5.1
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching rebuyengine.com

This scan found 17 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

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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
65
Email security
70
DNS health
75
Network security
100
GDPR outside view
68
Average
76

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

Rebuy operates in the competitive ecommerce personalization market, targeting Shopify brands seeking to increase sales and customer loyalty through AI-powered recommendations and merchandising. Their SaaS business model focuses on subscription-based revenue with product tiers and add-ons. The company has established partnerships with key ecommerce and marketing platforms, enhancing their ecosystem and market reach. Growth indicators include a large user base (45,000+ Shopify brands) and significant revenue impact ($2.7B+ in new revenue powered). Their product innovation, such as the Bundle Builder and Rebuy Monetize, positions them well against competitors. The absence of direct contact info on the site suggests a focus on inbound marketing and demo requests. Overall, Rebuy is a strategically positioned player with strong integration and product offerings in ecommerce personalization.

Security posture

The website demonstrates a solid security posture with HTTPS enforced and a cookie consent banner supporting GDPR compliance. Use of reputable third-party analytics and marketing tools is evident, though explicit security headers like Content-Security-Policy and X-Frame-Options are not clearly visible in the provided data. No vulnerabilities or exposed sensitive data were detected in the HTML content. The lack of a published vulnerability disclosure policy or security.txt file and absence of incident response contact details indicate areas for improvement in security transparency and readiness. The WHOIS data absence is a concern for domain legitimacy verification but does not directly impact website security. Overall, the security posture is good but could be enhanced with clearer policies and headers.

Recommendations

  1. Publish and enforce comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Provide a publicly accessible vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  3. Add clear incident response contact information, such as a dedicated security or abuse email address.
  4. Clarify domain registration details or ensure WHOIS data is publicly available to improve trust and legitimacy.
  5. Enhance transparency on data retention policies and user privacy practices beyond cookie consent.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rebuy
Description
Rebuy provides an AI-driven ecommerce personalization platform designed to help Shopify brands boost sales, improve customer experience, reduce churn, and increase average order value (AOV) and lifetime value (LTV).
Key services
Smart Cart, Merchandising Widgets, Dynamic Bundles, Bundle Builder, Checkout Extensions, Post-Purchase Offers, Smart Search, Smart Collections, Smart Flows, A/B Testing
Content quality
excellent
Branding
consistent

Technology

Stack
HubSpot CMS, Google Tag Manager, Google Analytics, Facebook Ads Pixel, HubSpot Analytics, JavaScript, SVG graphics
Frameworks
HubSpot CMS
Platforms
Shopify, Shopify Plus, Hydrogen
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with opt-in/out
  • No exposed sensitive data in HTML
  • Use of reputable analytics and marketing tools

Analytics and tracking

Services
Google Analytics, HubSpot Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Fluent
Tracking pixels
Facebook Ads Pixel, HubSpot Analytics
Marketing tools
HubSpot
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 navigation
  2. No WAF or blocking mechanisms detected
  3. Strong focus on ecommerce personalization for Shopify merchants
  4. Comprehensive product and solution descriptions
  5. Use of HubSpot CMS and marketing automation
  6. Cookie consent banner present and functional
  7. No direct contact emails or phone numbers found on homepage
  8. WHOIS data unavailable or domain unregistered per raw WHOIS output
Technical notes

Notes

The website is built on HubSpot CMS, leveraging modern web technologies and integrations with major analytics and marketing platforms. The use of SVG graphics and responsive design indicates attention to performance and user experience. The site loads quickly and is optimized for mobile devices. The technical stack supports scalability and integration with Shopify and related ecommerce platforms. However, some technical SEO and security header details could be improved. The absence of WHOIS data suggests a need to verify domain registration status. Overall, the technical infrastructure is robust and well-suited for the business model.
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. 76/100 +1Low25 findingsView report
  2. 75/100Medium25 findingsView report
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