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Security report for fullstory.com

FullStory · Technology · United States

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

75/100

Risk levelMedium

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

FullStory is an enterprise-level SaaS company specializing in behavioral data analytics that surfaces user sentiment to help businesses improve digital experiences. The company targets product teams and UX professionals, offering a platform that captures and analyzes user interactions to drive better product decisions. The website reflects a strong market position with professional branding and comprehensive service descriptions. Technically, the site is built on modern frameworks like Gatsby and React, optimized for performance and mobile responsiveness. Security posture is strong with HTTPS, security headers, and secure forms, though explicit incident response and vulnerability disclosure policies are absent. Privacy compliance is well addressed with clear policies and consent mechanisms. Overall, the site is trustworthy and professional, though the absence of WHOIS data introduces some uncertainty about domain registration legitimacy.

Scanned

This is an earlier scan of fullstory.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
85/ 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

4 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 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
    • 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

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

Keep watching fullstory.com

This scan found 20 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
52
Security headers
45
Email security
80
DNS health
85
Network security
100
GDPR outside view
85
Average
75

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

FullStory operates in the technology sector, focusing on behavioral analytics for digital products. Its SaaS business model targets medium to large enterprises seeking to enhance user experience through data-driven insights. The company demonstrates strong branding consistency and trust signals such as SOC 2 certification. The platform integrates marketing tools like Marketo and uses its own analytics for user tracking. The lack of WHOIS data is a minor concern but does not detract from the company's evident market presence and professional digital footprint. Partnerships and subsidiaries were not identified from the data provided.

Security posture

The website employs robust security measures including HTTPS, multiple security headers, and secure data collection forms. No vulnerabilities or exposed sensitive data were detected in the analysis. However, the absence of a published incident response plan or security contact information limits transparency and readiness perception. Privacy policies are comprehensive and GDPR compliant, supporting strong data protection practices. Recommendations include publishing explicit security policies and enhancing accessibility features. Overall, the security posture is mature but could benefit from improved communication of security governance.

Recommendations

  1. Publish a dedicated incident response and vulnerability disclosure policy page.
  2. Provide direct security contact emails such as security@fullstory.com or abuse@fullstory.com.
  3. Regularly audit and update third-party libraries to mitigate potential vulnerabilities.
  4. Enhance website accessibility to meet or exceed WCAG standards.
  5. Increase transparency on data retention and user data handling practices.

Contact details published on the site

Addresses
Legal name
FullStory, Inc.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
FullStory
Description
Discover a behavioral data platform that surfaces user sentiment buried between clicks to create better products that win loyal customers for life.
Key services
Behavioral data analytics, User sentiment analysis, Digital experience insights
Content quality
excellent
Branding
consistent

Technology

Stack
Gatsby, React, JavaScript, CSS
Frameworks
Gatsby
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • No exposed sensitive data detected
  • Secure forms with proper input types

Analytics and tracking

Services
FullStory analytics
Tracking level
extensive
Privacy practices
good

Advertising

Tracking pixels
FullStory tracking pixel
Marketing tools
Marketo
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 professional design.
  2. No WAF or blocking mechanisms detected.
  3. Comprehensive privacy and cookie policies with consent mechanisms present.
  4. No direct security contact or incident response policy found.
  5. WHOIS data unavailable, limiting domain trust verification.
  6. Strong branding and consistent messaging throughout the site.
  7. Use of modern web technologies and frameworks.
  8. Extensive behavioral analytics tracking implemented.
Technical notes

Notes

The website is built using Gatsby, a modern React-based static site generator, ensuring fast load times and good SEO. The use of modern CSS and JavaScript frameworks contributes to excellent mobile optimization and user experience. The site includes integrations with marketing automation tools like Marketo and uses FullStory's own analytics for behavioral tracking. No CMS was detected, indicating a custom or static site approach. Hosting provider details were not explicitly found. The technical implementation is modern and well-executed, supporting the company's enterprise positioning.
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. 75/100 +3Medium28 findingsView report
  2. 72/100 −1Medium29 findingsView report
  3. 73/100Medium25 findingsView report
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