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Security report for sleeknote.com

Sleeknote · Technology · Denmark

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

Security score

65/100

Risk levelMedium

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

Sleeknote is a mature SaaS company founded in 2012, specializing in a user-friendly popup builder platform designed to help marketers and e-commerce businesses increase leads and sales through personalized popups. The website demonstrates a strong market position with over 3,000 business customers and extensive integrations, including a dedicated Shopify app. Technically, the site is built on WordPress with modern optimization tools such as WP Rocket and Weglot for translations, ensuring fast performance and good mobile optimization. Security posture is solid with HTTPS and domain protection statuses, though there is room for improvement in publishing explicit security policies and cookie consent mechanisms. Privacy compliance is currently weak due to the absence of visible privacy and cookie policies. Overall, the website is professional, trustworthy, and content-rich, targeting marketers and online businesses.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 100 · Low
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 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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching sleeknote.com

This scan found 25 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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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
42
Security headers
15
Email security
70
DNS health
85
Network security
100
GDPR outside view
80
Average
65

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

Sleeknote operates in the technology sector, focusing on marketing automation and lead generation for e-commerce and SaaS clients. Its business model is subscription-based SaaS with free trials and demos to attract users. The company leverages a broad integration ecosystem and targets a diverse audience including enterprises, B2B, and online retailers. The website content and branding are consistent and professional, supporting a strong market presence. The lack of direct contact emails or phone numbers on the homepage suggests a focus on digital engagement channels. The company emphasizes user-friendliness and advanced targeting features as competitive advantages.

Security posture

The website employs HTTPS with a valid SSL configuration and domain status protections that prevent unauthorized domain changes. However, no explicit security headers were detected in the provided data, and there is no published security policy or incident response contact information. No vulnerability disclosure or security.txt file is present. Cookie consent mechanisms are not evident, which may pose compliance risks under GDPR. Overall, the security posture is moderate with good foundational elements but lacking in transparency and formal policies.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy with clear GDPR compliance statements.
  2. Implement and display a cookie consent banner or mechanism to comply with privacy regulations.
  3. Add security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options.
  4. Create and publish a security policy and incident response contact information to improve transparency and trust.
  5. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sleeknote
Description
Sleeknote provides a user-friendly popup builder platform designed to help marketers create personalized popups to collect emails, increase sales, guide visitors, and connect with customers. It offers drag-and-drop design, advanced targeting, analytics, and over 1,200 integrations including a Shopify app.
Key services
Popup builder, Email list segmentation, Sales increase tools, Visitor targeting, Analytics and A/B testing, Integrations with marketing platforms
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, WP Rocket, Weglot (translation), Wistia (video hosting), jQuery 4.0.0-beta.2, Flatpickr, Select2, Google Tag Manager, Amazon Registrar (domain registrar)
Frameworks
WordPress
Platforms
WordPress CMS, Shopify (integration/app)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enabled
  • Domain status includes clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Tracking pixels
Cookiebot
Marketing tools
Weglot translation, Wistia video hosting
Transparency
basic

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 multimedia.
  2. No explicit privacy or cookie policies found on the homepage or main navigation.
  3. Contact information is available via a contact page but no direct emails or phone numbers found in the homepage content.
  4. Strong branding and consistent design throughout the site.
  5. Use of modern web technologies and performance optimization plugins like WP Rocket.
  6. No security.txt or vulnerability disclosure page detected.
  7. No explicit security or incident response policies published.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on WordPress CMS with a modern tech stack including WP Rocket for caching and optimization, Weglot for multilingual support, and Wistia for video hosting. It uses jQuery 4.0.0-beta.2 and other JavaScript libraries for UI enhancements. The site is well-optimized for performance and mobile devices, with preloading and lazy loading techniques. Hosting and domain registration are managed via Amazon Registrar, indicating reliable infrastructure. There is no indication of technical debt or outdated technologies, but the absence of some security headers and policies suggests opportunities for technical improvements in security 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

Earlier scans of this domain

  1. 65/100 −4Medium33 findingsView report
  2. 69/100 −2Medium32 findingsView report
  3. 71/100Medium27 findingsView report
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