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Security report for builder.io

Builder.io · Technology · N/a

Medium risk. 5 critical or high findings in Security headers and GDPR outside view.

Security score

73/100

Risk levelMedium

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

Builder.io is a technology company offering an AI-powered visual development platform designed to accelerate the creation and optimization of web and mobile experiences. Positioned as an innovative SaaS provider, Builder.io targets development teams seeking to reduce development cycles and enhance user experience through visual tools and AI assistance. The website demonstrates a mature digital presence with modern frameworks such as React and Next.js, and integrates marketing and analytics tools like Google Tag Manager and ZoomInfo pixels. Security posture is strong with HTTPS enforcement and security headers, although explicit privacy and terms policies are not found in the provided content. The absence of public WHOIS data suggests privacy protection, common in tech companies, and no suspicious indicators were detected. Overall, Builder.io presents as a credible and professional technology platform with room to improve transparency around privacy and security disclosures.

Scanned

This is an earlier scan of builder.io. View the latest report

NIS2 and GDPR posture

GDPR outside view
58/ 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

5 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
    • 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 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 builder.io

This scan found 19 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
95
Security headers
15
Email security
87
DNS health
80
Network security
100
GDPR outside view
58
Average
73

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

Builder.io operates in the competitive visual development SaaS market, leveraging AI to differentiate its offering. Its business model focuses on providing a platform that enables rapid iteration and optimization of digital experiences, appealing to web and mobile development teams. The company maintains a consistent brand and professional website, with social media engagement primarily on Twitter. While direct contact information and legal disclosures are limited on the homepage, the integration of cookie consent and tracking pixels indicates awareness of marketing and compliance requirements. The lack of visible certifications or compliance frameworks suggests an opportunity to strengthen trust signals. Builder.io's market positioning as an AI-powered platform aligns with current technology trends, supporting growth potential and competitive advantage.

Security posture

The website employs HTTPS with strong SSL configuration and includes key security headers such as Content-Security-Policy and Strict-Transport-Security, indicating a solid baseline security posture. The presence of cookie consent mechanisms supports privacy compliance efforts. However, the absence of explicit privacy policies, terms of service, vulnerability disclosure, and incident response contacts limits transparency and may pose compliance risks under regulations like GDPR or NIS2. No vulnerabilities or exposed sensitive data were detected in the analyzed content. To enhance security maturity, Builder.io should publish comprehensive privacy and security policies, provide clear contact channels for security incidents, and consider adopting recognized security frameworks or certifications.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service accessible from the website footer or main navigation.
  2. Provide clear contact information including a dedicated security or abuse email address to facilitate incident reporting.
  3. Implement and publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  4. Consider obtaining and displaying relevant security certifications (e.g., ISO 27001) to enhance trust.
  5. Regularly review and update cookie consent and privacy compliance mechanisms to align with evolving regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Builder.io
Description
Builder is an AI-Powered Visual Development Platform that helps teams generate, iterate, and optimize web and mobile experiences in seconds instead of sprints.
Key services
Visual development platform, AI-powered content generation, Web and mobile experience optimization
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, ZoomInfo Pixel, CookieLaw Consent Management
Frameworks
Next.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
ZoomInfo
Transparency
basic

Site quality

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

Key observations

  1. Website uses modern web technologies and frameworks.
  2. Content is rich and professionally presented.
  3. No explicit contact emails or phone numbers found on the homepage.
  4. Cookie consent mechanism is implemented indicating privacy awareness.
  5. WHOIS data is not publicly available, likely due to privacy protection.
  6. No security.txt or vulnerability disclosure found.
  7. No explicit privacy policy or terms of service pages detected in the provided content.
  8. Social media presence confirmed via Twitter handle in meta tags.
  9. No signs of adult or questionable content.
Technical notes

Notes

Builder.io's website is built on a modern technology stack including React and Next.js, enabling server-side rendering and optimized performance. The site uses Google Tag Manager and ZoomInfo pixels for analytics and marketing, and integrates a cookie consent management system. The design is responsive and accessible, with good SEO practices evident in meta tags and Open Graph data. No technical errors or broken elements were detected in the provided content. Hosting details are not explicitly identified, but the use of CDN domains suggests a distributed content delivery approach. Overall, the technical infrastructure supports a fast, secure, and user-friendly experience, with opportunities to improve transparency and compliance documentation.
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. 73/100 −3Medium26 findingsView report
  2. 76/100 +8Low25 findingsView report
  3. 68/100Medium27 findingsView report
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