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Security report for notion.so

Notion Labs Inc. · 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

Notion Labs Inc. operates a leading AI-powered workspace platform designed to unify team collaboration, knowledge management, and productivity tools into a single flexible environment. Their website showcases a comprehensive suite of services including Notion AI, Docs, Wikis, Projects, Enterprise Search, and more, targeting a broad audience from startups to large enterprises and educational institutions. The company positions itself as a market leader with strong customer endorsements from notable organizations such as OpenAI and Toyota. Technically, the website is built on modern frameworks like React and Next.js, optimized for performance and mobile responsiveness. The presence of security headers and HTTPS enforcement indicates a mature security posture. Privacy and cookie policies are clearly presented with consent mechanisms, reflecting compliance with GDPR and related regulations. Security-wise, the site demonstrates good practices but lacks explicit incident response and vulnerability disclosure information, which could be improved. The absence of public WHOIS data is noted but does not detract significantly from the overall trustworthiness given the strong brand presence and professional content. Overall, Notion's website reflects a high level of digital maturity, business credibility, and security awareness, making it a trustworthy platform for users. Strategic recommendations include enhancing transparency around security incident handling and vulnerability reporting to further strengthen user trust.

Scanned

This is an earlier scan of notion.so. 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

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"

  2. 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

  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 notion.so

This scan found 17 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
75
Security headers
50
Email security
65
DNS health
85
Network security
100
GDPR outside view
85
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

Notion operates in the technology sector as a SaaS provider offering an AI-enhanced workspace platform. Their business model includes free tiers and enterprise subscriptions, targeting teams across various sizes and industries. The company leverages strategic partnerships and a strong community presence to maintain market leadership. Customer testimonials and social proof highlight competitive advantages in workflow integration and AI capabilities. The website's content and design reinforce Notion's positioning as a comprehensive solution for productivity and collaboration, supporting growth and customer retention.

Security posture

The website exhibits a strong security posture with HTTPS enforcement and multiple security headers such as Content-Security-Policy and Strict-Transport-Security. No exposed sensitive data or vulnerable libraries were detected in the HTML content. Privacy compliance is evident through detailed policies and consent mechanisms. However, the absence of a public incident response contact or vulnerability disclosure program represents a gap in security transparency. Addressing these areas would improve incident readiness and user confidence. Overall, the security maturity is high but can benefit from enhanced communication of security processes.

Recommendations

  1. Publish explicit incident response and security contact information on the website.
  2. Implement and publicize a vulnerability disclosure policy or security.txt file.
  3. Regularly audit and update third-party libraries to mitigate potential vulnerabilities.
  4. Enhance transparency around certifications and compliance frameworks to build trust.
  5. Maintain and improve privacy compliance with clear data retention and user rights disclosures.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Notion Labs Inc.
Description
A tool that connects everyday work into one space. It gives you and your teams AI tools—search, writing, note-taking—inside an all-in-one, flexible workspace.
Key services
Notion AI, Docs, Wikis, Projects, Enterprise Search, AI Meeting Notes, Forms, Sites, Mail, Calendar
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, HTML5, CSS3, Google Identity Services
Frameworks
React, Next.js
Platforms
Web, Windows Desktop App, Mobile Web
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 in HTML
  • Secure forms with CSRF protections implied
  • GDPR compliance mechanisms

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Google Identity Services
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. Strong brand presence with multiple customer testimonials and social proof.
  3. Comprehensive product offerings with AI integration.
  4. Good privacy and cookie policies with consent mechanisms.
  5. No explicit contact emails or phone numbers publicly listed; contact via forms and social media.
  6. No visible security incident response or vulnerability disclosure pages.
  7. Modern tech stack with React and Next.js.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, ensuring fast load times and excellent mobile optimization. The use of Google Identity Services indicates integration with secure authentication mechanisms. The site employs best practices in SEO and accessibility, with comprehensive meta tags and structured navigation. Hosting details are not explicitly identified but performance indicators suggest reliable infrastructure. Technical risks are minimal, with no visible deprecated technologies or broken elements. Opportunities exist to further modernize by adopting advanced security frameworks and expanding API integrations.
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. 77/100 +4Low26 findingsView report
  2. 73/100 −2Medium28 findingsView report
  3. 75/100Medium26 findingsView report
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