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Security report for gptsdex.com

Technology · N/a

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

The website gptsdex.com is positioned as a technology platform focused on providing a marketplace for over 10,000 custom GPT models, aiming to bridge AI creativity between beginners and experts. The platform's business model centers on community engagement and sharing of AI models, leveraging modern web technologies such as Next.js and React. However, the current accessible content is limited, as the site returns a 404 error page, indicating that the requested content is not available or the site is under development. From a technical perspective, the site uses a modern JavaScript framework stack and is hosted with Cloudflare DNS services, which provides some level of performance and security benefits. The integration of Google AdSense indicates monetization through advertising. Despite this, the site lacks visible SEO optimization, accessibility features, and comprehensive metadata, which limits its digital maturity. Security posture is moderate with HTTPS enabled and domain transfer protection in place, but lacks DNSSEC and security headers that are considered best practices. No privacy, cookie, or terms of service policies are present, which raises compliance concerns. No contact or incident response information is available, reducing transparency and trust. Overall, the site appears to be a new entrant in the AI GPT marketplace space but currently lacks critical content and compliance elements. Strategic improvements in content availability, privacy compliance, security hardening, and transparency are recommended to enhance trust and user engagement.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

6 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"

    • 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching gptsdex.com

This scan found 21 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

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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
35
Email security
70
DNS health
70
Network security
100
GDPR outside view
50
Average
67

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

gptsdex.com targets the AI and machine learning community, specifically users interested in custom GPT models. Its competitive advantage lies in aggregating a large number of GPTs and fostering a community of builders. The business model likely includes advertising revenue and possibly premium features or partnerships. The platform is in early stages given the domain age and lack of content. Growth potential exists if the platform can deliver a seamless user experience and build a trusted community. No partnerships or subsidiaries are evident from the data. The lack of contact and compliance information may hinder user trust and adoption.

Security posture

The website demonstrates a basic security posture with HTTPS enabled and domain transfer lock status. However, the absence of DNSSEC and security headers such as Content-Security-Policy and Strict-Transport-Security reduces its defense-in-depth. No evidence of vulnerability disclosures, incident response policies, or security certifications were found. The lack of privacy and cookie policies indicates non-compliance with GDPR and other privacy regulations. No forms or user input fields were detected, reducing attack surface but also limiting user interaction. Overall, the security maturity is low to moderate with significant room for improvement in compliance and transparency.

Recommendations

  1. Enable DNSSEC to protect against DNS spoofing and improve domain security.
  2. Implement comprehensive privacy and cookie policies with clear consent mechanisms to ensure GDPR compliance.
  3. Add contact information including security incident response contacts to improve transparency and trust.
  4. Deploy security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance security posture.
  5. Develop and publish terms of service and vulnerability disclosure policies to establish clear user and security guidelines.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
A hub of over 10,000 custom GPTs, streamlining AI creativity post-OpenAI's launch. Our platform empowers you to share, discover, and enhance GPTs, bridging the gap between beginners and experts. Join our GPT Builders community today.
Key services
GPT discovery, GPT sharing, GPT enhancement, Community building for GPT developers
Content quality
basic
Branding
moderate

Technology

Stack
JavaScript, React, Next.js, Cloudflare DNS
Frameworks
Next.js, Mantine UI
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enabled
  • Domain status clientTransferProhibited

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Ad networks
Google AdSense
Transparency
basic

Site quality

Design
basic
User experience
basic
Content relevance
basic
Navigation
basic
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website currently returns a 404 error page indicating the requested page is not found.
  2. No privacy, cookie, or terms of service policies found in the HTML content.
  3. No contact information such as emails, phone numbers, or physical addresses found.
  4. No security or incident response policies or contacts found.
  5. Website uses modern JavaScript frameworks (Next.js, React) and Mantine UI components.
  6. Google AdSense is integrated for advertising.
  7. No analytics or tracking scripts explicitly detected beyond ads.
  8. No forms detected in the HTML content.
  9. No social media links or company emails found.
  10. No structured data (JSON-LD) or Open Graph meta tags detected.
Technical notes

Notes

The website is built using Next.js and React frameworks, leveraging Mantine UI components for styling and layout. It uses Cloudflare for DNS and likely CDN services, which supports performance and security. The site includes Google AdSense scripts for advertising revenue. The HTML content indicates a 404 error page, suggesting incomplete or missing content. No CMS or backend platform was detected. The site shows basic mobile optimization and accessibility but lacks advanced SEO metadata and structured data. Performance is moderate but could improve with content availability and optimization. The technical stack is modern but underutilized due to missing content and compliance features.
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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