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Security report for notebooklm.google

Google · Technology · United States

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

77/100

Risk levelLow

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

Google NotebookLM is an AI-powered research tool designed to assist users in analyzing sources, simplifying complex information, and transforming content. As a product under the Google brand, it leverages Google's extensive technological infrastructure and expertise in AI and machine learning. The website presents a professional and modern interface consistent with Google's branding and design standards, targeting researchers, students, and professionals seeking AI-assisted research capabilities. Technically, the website is built using modern web technologies including Angular framework, Google Fonts, and Material Design components, hosted on Google Cloud infrastructure. It employs best practices such as HTTPS encryption, Content Security Policy with nonce, and Google Tag Manager for analytics and marketing. The site is optimized for performance and mobile responsiveness, providing a good user experience. From a security perspective, the site demonstrates a strong posture with enforced HTTPS, security headers, and no visible vulnerabilities or exposed sensitive data. However, it lacks explicit published privacy policies, terms of service, and dedicated security or incident response contact information, which are important for compliance and user trust. Cookie consent mechanisms are implemented, indicating some level of privacy compliance. Overall, the website is trustworthy and professionally maintained, reflecting Google's standards. The main risks relate to the absence of explicit privacy and terms documentation and lack of direct contact channels for security or business inquiries. Addressing these gaps would enhance compliance and user confidence.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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. 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

  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 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 notebooklm.google

This scan found 16 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

€39.90one-time

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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
60
Security headers
75
Email security
70
DNS health
90
Network security
100
GDPR outside view
68
Average
77

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

Google NotebookLM is positioned as an innovative AI research tool within the technology sector, leveraging Google's brand strength and technological capabilities. Its business model focuses on delivering AI-powered content analysis and knowledge management services, targeting academic, professional, and research audiences. The product benefits from Google's extensive cloud infrastructure and AI expertise, providing competitive advantages in scalability and innovation. The absence of direct contact information and detailed business disclosures suggests a product in early or controlled release phases. The ecosystem includes integration with Google services and domains, reinforcing its market presence. Growth potential is high given the increasing demand for AI research tools, with strategic opportunities to expand user engagement and compliance transparency.

Security posture

The website exhibits a mature security posture with mandatory HTTPS, strong Content Security Policy enforcement, and use of secure script loading techniques. No exposed credentials or vulnerable libraries were detected in the HTML content. The presence of Google Tag Manager indicates moderate user tracking, balanced by cookie consent mechanisms. However, the lack of published security policies, incident response contacts, and vulnerability disclosure channels represents compliance gaps. There is no evidence of GDPR-specific compliance beyond cookie consent. Overall, the site is secure from a technical standpoint but would benefit from enhanced transparency and formalized security governance documentation to meet best practices and regulatory expectations.

Recommendations

  1. Publish comprehensive privacy policy and terms of service pages accessible from the homepage.
  2. Add explicit contact information for security incidents, including security@ or abuse@ email addresses.
  3. Implement and publish a security.txt file to facilitate vulnerability disclosures.
  4. Enhance GDPR compliance by detailing data processing and user rights in privacy documentation.
  5. Maintain and regularly audit security headers and script integrity to prevent emerging vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Google
Description
NotebookLM is an AI research tool and thinking partner that can analyze sources, simplify complexity, and transform content.
Key services
AI research assistance, Content analysis, Knowledge management
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Material Design, Google Fonts, HTML5, CSS3
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of CSP nonce for scripts
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
basic
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is a Google-branded AI research tool.
  2. No explicit privacy policy or terms of service found on homepage.
  3. Cookie consent mechanism is present and functional.
  4. No direct contact information or forms detected.
  5. Uses modern web technologies and Google Cloud hosting.
  6. Strong security posture with HTTPS and CSP.
  7. No suspicious or malicious indicators found.
Technical notes

Notes

The website is built on a modern Angular framework with Material Design components, hosted on Google Cloud Platform, ensuring scalability and reliability. It uses Google Fonts and optimized assets served from gstatic domains, contributing to fast load times and good performance. The site is mobile-optimized and accessible, with semantic HTML and responsive design. Analytics and marketing are managed via Google Tag Manager, enabling flexible data collection. No CMS was detected, indicating a custom or proprietary platform. Technical risks are minimal, but the absence of explicit privacy and security documentation could pose compliance risks. Opportunities exist to improve SEO and user engagement by adding structured content and clear navigation to legal and contact pages.
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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