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Security report for cartstack.com.br

Performa.AI (PowerCart) · E-commerce · Brazil

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

Security score

66/100

Risk levelMedium

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

The website cartstack.com.br, now rebranded as Performa.AI (PowerCart), offers a SaaS solution focused on recovering abandoned shopping carts for e-commerce and other online platforms. It targets Brazilian online retailers and businesses with forms, providing automated personalized email campaigns to increase sales conversion. The site is well structured with clear navigation and mobile optimization, leveraging modern frontend technologies and integrating multiple analytics and marketing tools. The business positions itself as a specialized conversion optimization service with a focus on ease of integration and real-time customer recovery. Technically, the site uses Bootstrap, jQuery, and several third-party services including Mixpanel, Google Analytics, and Facebook Pixel. Hosting and DNS are managed via Cloudflare, ensuring good SSL and performance standards. However, some security best practices such as comprehensive security headers are missing, and no cookie consent mechanism is present despite extensive tracking, which may impact privacy compliance. The privacy policy is present but basic and hosted on a third-party domain, with no terms of service or security policy pages detected. Security posture is moderate with HTTPS enforced and no visible vulnerabilities or exposed sensitive data. The domain WHOIS data is consistent and trustworthy, with no privacy protection or suspicious patterns. Contact information is available primarily via phone and WhatsApp, but no verified company email addresses are found in the HTML content. Overall, the website is professional and credible but could improve in privacy compliance and security header implementation. Strategic recommendations include implementing cookie consent, enhancing security headers, publishing clear terms and security policies, and improving GDPR compliance to strengthen trust and regulatory adherence.

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 cartstack.com.br

This scan found 23 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

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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
15
Email security
85
DNS health
70
Network security
100
GDPR outside view
53
Average
66

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

Performa.AI operates in the Brazilian e-commerce SaaS market, specializing in cart abandonment recovery through automated email marketing. Its competitive advantage lies in easy integration with multiple e-commerce platforms and real-time personalized communication with potential customers. The business model is subscription-based SaaS targeting small to medium online retailers and agencies managing multiple stores. The rebranding from CartStack Brasil to Performa.AI indicates strategic positioning towards AI-powered marketing solutions. Partnerships and integrations with numerous e-commerce platforms broaden market reach. The presence of WhatsApp contact and localized phone numbers supports strong regional customer engagement. Growth potential exists in expanding platform compatibility and enhancing privacy and security features to meet evolving regulatory demands.

Security posture

The website demonstrates a moderate security maturity level with enforced HTTPS and use of Cloudflare DNS services. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options exposes the site to potential risks like clickjacking and content injection. The lack of a cookie consent mechanism despite extensive tracking scripts indicates a compliance gap with privacy regulations such as GDPR. No incident response or security policy information is published, limiting transparency and readiness perception. No exposed sensitive data or vulnerable libraries were detected in the HTML content. Overall, the security posture is adequate but requires improvements in headers, privacy compliance, and documented security policies to reduce risk and enhance trust.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Deploy a cookie consent banner/mechanism to comply with privacy laws and inform users about tracking.
  3. Publish clear terms of service and a dedicated security policy page including incident response contacts.
  4. Enhance the privacy policy to explicitly address GDPR compliance and data retention practices.
  5. Regularly audit third-party scripts and dependencies to ensure no vulnerabilities or privacy issues.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Performa.AI (PowerCart)
Description
Software solution to recover abandoned shopping carts with personalized automated emails integrated to any website or platform, aiming to increase sales easily.
Key services
Automated cart abandonment recovery, Personalized email campaigns, Real-time monitoring and notifications, Multi-site and agency plans
Content quality
good
Branding
moderate

Technology

Stack
Bootstrap, jQuery, Font Awesome, Google Fonts, Mixpanel, Google Analytics, Facebook Pixel, Typebot, Cloudflare DNS
Frameworks
Bootstrap
Platforms
Custom SaaS platform, Integrations with multiple e-commerce platforms
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Use of encrypted data transmission
  • No exposed sensitive data in HTML
  • Use of trusted third-party scripts

Analytics and tracking

Services
Google Analytics, Mixpanel, Facebook Pixel
Tracking level
extensive
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, Mixpanel
Marketing tools
Mixpanel, Facebook Pixel, Typebot
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is primarily in Portuguese targeting Brazilian e-commerce market.
  3. No explicit cookie consent mechanism found despite use of tracking scripts.
  4. Contact information is present but no email addresses explicitly found in HTML.
  5. Multiple third-party analytics and marketing tools are integrated.
  6. Security headers are not fully implemented, representing an area for improvement.
  7. Privacy policy is present but basic and hosted on a third-party domain.
  8. No terms of service or security policy pages detected.
  9. Business branding is moderately consistent with recent rebranding to Performa.AI.
  10. Website uses modern frontend technologies and is mobile optimized.
Technical notes

Notes

The website is built on a modern frontend stack using Bootstrap and jQuery, with integration of popular analytics and marketing tools such as Google Analytics, Mixpanel, and Facebook Pixel. Hosting and DNS are managed via Cloudflare, providing reliable SSL and performance benefits. The site is mobile optimized and has good navigation and content structure. However, the absence of a CMS suggests a custom or proprietary platform. Performance is moderate with lazy loading images and asynchronous script loading. Accessibility features are basic, and SEO optimization is minimal but present through meta tags. Technical debt appears low but security header omissions and lack of privacy mechanisms represent modernization opportunities and technical risks that should be addressed to maintain business continuity and compliance.
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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