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Security report for chatgpt.com

OpenAI · Technology · N/a

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

Security score

82/100

Risk levelLow

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

The website chatgpt.com serves as the official web interface for ChatGPT, a conversational AI system developed by OpenAI. It offers users a free and easy-to-use platform for AI-driven writing, learning, brainstorming, and other productivity tasks. The site is positioned as a leading AI conversational platform with a strong market presence and is backed by the reputable OpenAI organization. The business model includes free access with indications of paid subscription tiers, reflecting a mature and scalable service offering. Technically, the site employs modern web technologies such as React and Cloudflare CDN, ensuring fast performance, mobile optimization, and good accessibility. Security posture is strong with HTTPS enforced, domain locking, and Cloudflare protection, although DNSSEC is not enabled and explicit security policies are not published on the site. Privacy compliance is robust, linking to comprehensive OpenAI privacy and terms pages, with clear data retention policies for temporary chat data. Overall, the site demonstrates high professionalism, trustworthiness, and technical maturity, suitable for a global audience seeking AI conversational services.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
73/ 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 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 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 chatgpt.com

This scan found 14 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

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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
75
Email security
85
DNS health
85
Network security
100
GDPR outside view
73
Average
82

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention chatgpt.com, from OffSeq Breach.

Total records
2,464
Employees
0
Customers
2,413
Third parties
51
Weak passwords
10%

5 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for chatgpt.com.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

ChatGPT.com is a flagship product of OpenAI, targeting a broad audience including individuals, professionals, and enterprises interested in AI-powered conversational assistance. The platform's competitive advantage lies in its advanced AI capabilities, ease of use, and integration with OpenAI's ecosystem. Revenue streams likely include subscription plans and enterprise offerings, although the site primarily promotes free access. The partnership ecosystem includes Cloudflare for hosting and CDN services, and MarkMonitor for domain registration, indicating strong operational partnerships. Growth indicators include continuous feature updates and a large user base. Strategic observations suggest the company focuses on innovation, user experience, and privacy compliance to maintain market leadership.

Security posture

The security maturity of chatgpt.com is high, with enforced HTTPS, domain status prohibiting unauthorized transfers or deletions, and use of Cloudflare for DDoS mitigation and CDN. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a published security policy or incident response contacts is a gap in transparency. DNSSEC is not enabled, which could be improved to enhance DNS security. The site uses nonce-based Content Security Policy for scripts, reducing XSS risks. Overall, the site is secure for users but could benefit from publishing explicit security and incident response information to improve trust and compliance.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  2. Publish a dedicated security policy page detailing security practices and compliance frameworks.
  3. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  4. Consider adding a security.txt file to facilitate responsible vulnerability disclosure.
  5. Enhance advertising transparency by disclosing any tracking or marketing tools if used.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
OpenAI
Description
ChatGPT helps you get answers, find inspiration and be more productive. It is free to use and easy to try. Just ask and ChatGPT can help with writing, learning, brainstorming and more.
Key services
Conversational AI, Writing assistance, Learning support, Brainstorming
Content quality
excellent
Branding
consistent

Technology

Stack
React, JavaScript ES Modules, Cloudflare CDN, CSS, HTML5
Frameworks
React Router
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Domain locked with client and server prohibitions
  • Use of Cloudflare for DDoS protection and CDN
  • No exposed emails or sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented and consistent with OpenAI branding.
  3. No direct contact emails or phone numbers found on the main page.
  4. Privacy and terms policies link to official OpenAI pages.
  5. No explicit security or incident response policies published on the site.
  6. No advertising or tracking scripts detected in the HTML content.
  7. Site uses modern web technologies and is optimized for performance and mobile.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built using React with React Router for client-side routing, served via Cloudflare CDN for performance and security. The use of ES modules and modern JavaScript indicates a contemporary tech stack. The site is mobile-optimized with responsive design and accessibility features such as skip links and ARIA live regions. Performance is fast with preloading of critical scripts and styles. No CMS was detected, suggesting a custom-built frontend. The domain is registered with MarkMonitor, a trusted registrar, and DNS is managed via Cloudflare. The site uses HTTPS exclusively with strong security headers implied. There is no evidence of technical debt or legacy technologies. Opportunities include enabling DNSSEC and publishing more explicit security documentation 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

Earlier scans of this domain

  1. 82/100Low22 findingsView report
  2. 82/100Low22 findingsView report
  3. 82/100Low22 findingsView report
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