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Security report for sequen.ai

Sequen · Technology · N/a

Medium risk. 3 critical or high findings in GDPR outside view and SSL/TLS.

Security score

73/100

Risk levelMedium

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

Sequen is a technology company specializing in AI-driven behavior design and optimization for enterprise clients. Their platform leverages reinforcement learning and Large Event Models (LEM) to deliver adaptive in-session search, personalization, and recommendations that optimize user behavior and business KPIs. Positioned as an innovative leader, Sequen targets enterprises seeking advanced personalization solutions to drive revenue growth and user engagement. The website demonstrates a mature digital presence with professional design, clear messaging, and credible customer references. Technically, the site is built on Webflow CMS with modern JavaScript libraries including Google Tag Manager, jQuery, and Splide.js for UI components. Performance and mobile optimization are excellent, with fast load times and responsive design. However, some privacy compliance aspects such as cookie consent mechanisms are missing, and no explicit security or incident response policies are published. Security posture is solid with HTTPS and no exposed sensitive data, but could be improved by adding security headers and formal policies. The WHOIS data is privacy protected, which is common for tech startups, and no suspicious patterns were detected. Overall, the site is trustworthy and professionally maintained. Strategic recommendations include enhancing privacy compliance with cookie consent, publishing security and incident response policies, and implementing security headers to strengthen defenses. These steps will improve trust and regulatory adherence while maintaining a strong market position.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 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

    • 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

  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 sequen.ai

This scan found 22 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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  • 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
62
Security headers
60
Email security
75
DNS health
80
Network security
100
GDPR outside view
58
Average
73

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

Sequen operates in the AI and personalization technology sector, offering a SaaS platform that integrates reinforcement learning and LEMs to optimize user behavior in real-time. Their competitive advantage lies in their novel approach to behavior design, differentiating from traditional AI-powered search and recommendation systems. The company targets enterprise clients across industries such as e-commerce, ad tech, media, and marketplaces. Revenue streams likely include subscription fees for API access and consulting/audit services. The presence of high-profile customers like Etsy and Anthropic signals strong market validation. The company emphasizes rapid deployment and measurable business impact, positioning itself as a growth-oriented innovator with a focus on data-driven personalization and user experience optimization.

Security posture

The website demonstrates a good security maturity level with HTTPS enforced and no visible exposure of sensitive data. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options represents a potential risk vector. No security.txt or vulnerability disclosure policy is published, limiting transparency for security researchers. Privacy compliance is partial; while a comprehensive privacy policy exists, there is no cookie consent mechanism detected, which may expose the company to GDPR compliance risks. Incident response contact information is not provided, which could delay mitigation in case of security incidents. Overall, the security posture is solid but could be enhanced by adopting best practices in headers, transparency, and user consent management.

Recommendations

  1. Implement a cookie consent banner to comply with GDPR and other privacy regulations.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to improve defense against common web attacks.
  3. Publish a security policy and incident response contact details to enhance transparency and readiness.
  4. Create and maintain a security.txt file to facilitate responsible vulnerability disclosure.
  5. Regularly audit third-party scripts and dependencies to mitigate risks from external libraries.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sequen
Description
Sequen is the world's first reinforcement-learning-native search and discovery platform built on Large Event Models (LEM). It powers adaptive in-session search, personalization, and recommendations to optimize user behavior and business outcomes.
Key services
In-session behavior optimization, Adaptive search, Personalization, Recommendations, No-code auditing and insights (RUMI)
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow CMS, Google Fonts (Inter, Roboto Mono), Google Tag Manager (gtag.js), jQuery 3.5.1, Splide.js slider, Lottie animations, reb2b retention script
Frameworks
Webflow
Platforms
Webflow hosting
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google site verification meta tag

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Google Analytics (via gtag.js)
Marketing tools
reb2b retention script
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 no blocking or WAF challenges.
  2. Content is rich, professional, and well-structured.
  3. Strong branding and consistent messaging around behavior design and AI-powered personalization.
  4. No phone numbers or physical addresses explicitly listed on the homepage or footer.
  5. Contact primarily via email and contact form.
  6. No explicit cookie consent banner detected, which may be a compliance gap.
  7. WHOIS data is unavailable publicly, indicating privacy protection.
  8. Use of modern web technologies and performance optimizations.
  9. Social media presence on LinkedIn, Twitter (X), and Instagram.
  10. No visible security.txt or vulnerability disclosure policy.
Technical notes

Notes

The website is built using Webflow CMS, leveraging modern web technologies including Google Fonts, jQuery, Splide.js for sliders, and Lottie animations for visual effects. Google Tag Manager and Google Analytics are used for tracking and analytics. The site is hosted on Webflow's CDN, ensuring fast content delivery and good uptime. The HTML structure is valid and includes appropriate meta tags for SEO and social sharing (Open Graph). Mobile responsiveness and accessibility features such as focus-visible outlines are implemented, contributing to a positive user experience. The site loads quickly with optimized images and asynchronous script loading. However, there is room for improvement in privacy compliance and security header implementation to reduce technical risks.
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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