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Security report for sleak.chat

Sleak · Technology · Netherlands

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

78/100

Risk levelLow

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

Sleak is a Dutch technology company specializing in AI chatbot solutions designed to enhance customer service and lead generation for customer-centric businesses. Positioned as a market leader in the Netherlands, Sleak offers a SaaS platform that includes AI agent builders, live chat inboxes, and integration services with CRM and ticketing systems. The website reflects a professional and consistent brand image, targeting Dutch businesses seeking advanced AI-driven customer interaction tools. Technically, the site is built on Webflow CMS and incorporates modern analytics and marketing technologies such as Google Analytics, Hotjar, Facebook Pixel, and TikTok Pixel, demonstrating a mature digital infrastructure. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though some security headers could be improved. The absence of public WHOIS data suggests privacy protection, which is justified for this business type. Overall, the site is trustworthy, well-designed, and compliant with privacy regulations.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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

3 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 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. 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 sleak.chat

This scan found 19 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.

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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
72
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
95
Average
78

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

Sleak operates in the AI chatbot technology sector, focusing on enhancing customer experience and sales through automated AI agents. Their business model is SaaS-based, offering customizable chatbot solutions and implementation services. The company targets medium-sized Dutch enterprises and agencies, leveraging partnerships and a community-driven approach via Sleak University. Revenue streams likely include subscription plans and professional services. The presence of multiple client logos and case studies indicates a growing customer base and market acceptance. The company maintains a strong marketing ecosystem with integrations to major ad and analytics platforms, supporting data-driven growth and customer acquisition strategies.

Security posture

The website demonstrates a good security maturity level with HTTPS enforced and a comprehensive cookie consent mechanism that supports GDPR compliance. However, explicit security policies, incident response contacts, and certifications are not publicly disclosed. The use of multiple third-party scripts introduces potential risk vectors, necessitating regular security audits. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. The lack of security headers like CSP and X-Frame-Options suggests room for improvement. Overall, the security posture is adequate for a SaaS business but could be enhanced by publishing formal security and incident response documentation.

Recommendations

  1. Implement and enforce comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a dedicated security policy and incident response plan accessible from the website.
  3. Conduct regular third-party script audits to mitigate supply chain risks.
  4. Enhance accessibility features to improve compliance with WCAG standards.
  5. Maintain transparency by providing more detailed privacy and data protection officer contact information.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sleak
Description
De ultieme AI chatbot bouwer voor klantgerichte bedrijven, van Nederlandse bodem. Binnen no-time gepersonaliseerd op je website.
Key services
AI agent/chatbot builder, Inbox & live chat, Integrations with CRM, CMS, ticketing, Implementation service, Helpdesk, E-commerce, Lead generation, Conversion optimization solutions
Content quality
good
Branding
consistent

Technology

Stack
Webflow CMS, Google Tag Manager, Google Analytics, Hotjar, Facebook Pixel, TikTok Pixel, LinkedIn Insight Tag, Vimeo Player, YouTube Player API, GSAP animation library, JS-Cookie, CookieYes consent management
Frameworks
Webflow
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with granular controls
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Hotjar, Microsoft Clarity
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
doubleclick.net, TikTok, Facebook
Tracking pixels
Facebook Pixel, TikTok Pixel, LinkedIn Insight Tag, Hotjar, Microsoft Clarity
Marketing tools
Hotjar, CookieYes
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 rich content
  2. Professional design and clear navigation
  3. Strong focus on AI chatbot technology for Dutch market
  4. Comprehensive cookie consent with granular controls
  5. Multiple contact methods including phone, email, and forms
  6. Use of multiple third-party analytics and marketing tools
  7. No WHOIS data publicly available, indicating privacy protection
  8. No security challenge or WAF blocking detected
Technical notes

Notes

The website is built on the Webflow CMS platform, utilizing modern JavaScript libraries such as GSAP for animations and JS-Cookie for cookie management. It integrates multiple analytics and marketing tools including Google Analytics, Hotjar, Facebook Pixel, TikTok Pixel, and LinkedIn Insight Tag, indicating a sophisticated tracking and marketing infrastructure. Performance is moderate with good mobile optimization and SEO practices. Hosting appears to be managed by Identity Digital, though explicit hosting details are limited. The site uses asynchronous loading for scripts to improve load times. Technical debt appears low, but security header implementation and accessibility compliance could be improved to reduce risk and enhance user experience.
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. 70/100Medium31 findingsView report
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