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Security report for captcha.com

Captcha, Inc. · Technology · N/a

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

73/100

Risk levelMedium

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

Captcha, Inc. operates the BotDetect CAPTCHA Generator website, providing self-hosted CAPTCHA solutions for .NET, Java, and PHP platforms. The company emphasizes privacy, accessibility, and regulatory compliance, positioning itself as a privacy-friendly alternative to Google reCAPTCHA. The website is content-rich, professionally designed, and targets developers and enterprises needing CAPTCHA solutions that comply with accessibility standards and data protection laws such as GDPR. Technically, the site uses a modern tech stack including jQuery and supports multiple frontend frameworks like Angular and React. Hosting is provided by Hetzner, a reputable provider. Security posture is moderate with good practices like self-hosting and no third-party dependencies, but lacks explicit security headers and published security policies. Privacy compliance is supported by a comprehensive privacy policy, though cookie consent mechanisms are absent. Overall, the site is trustworthy, safe, and well-positioned in its niche.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

4 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 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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching captcha.com

This scan found 22 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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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
62
Security headers
45
Email security
70
DNS health
80
Network security
100
GDPR outside view
80
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

The company has a niche market position focusing on privacy-conscious CAPTCHA solutions, differentiating itself from dominant players like Google. Its business model is based on software licensing and sales, targeting developers and enterprises requiring accessible and compliant CAPTCHA implementations. The website showcases strong trust indicators including customer references from major companies and compliance with accessibility and privacy regulations. The absence of direct contact emails or phone numbers suggests a controlled communication channel primarily via support forms. The company has been operational since 2004, indicating stability and experience in the market.

Security posture

The website demonstrates a moderate security maturity level with self-hosted CAPTCHA solutions that avoid third-party tracking. However, the lack of visible security headers, absence of a published security policy, and no incident response contacts reduce the overall security posture. Use of Google Analytics introduces moderate user tracking, which may impact privacy compliance. No vulnerabilities or exposed sensitive data were detected in the content. The site would benefit from implementing security headers, publishing vulnerability disclosure policies, and enhancing transparency around data protection practices.

Recommendations

  1. Implement and publish comprehensive security headers such as CSP, HSTS, and X-Frame-Options.
  2. Add a cookie consent mechanism to comply fully with GDPR and other privacy regulations.
  3. Publish a detailed security policy and incident response contact information.
  4. Review and disclose data retention policies related to analytics and tracking.
  5. Enhance transparency around third-party services and user tracking to improve privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Captcha, Inc.
Description
BotDetect CAPTCHA generator is a self-hosted, licensable source-code CAPTCHA solution supporting .NET, Java, and PHP backends, designed to prevent automated form posting with accessibility and privacy in mind.
Key services
CAPTCHA generation libraries for .NET, Java, PHP, Audio CAPTCHA for accessibility, Localization and multi-language support, Self-hosted CAPTCHA solutions
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 1.11.1, JavaScript, ASP.NET, .NET Core, Java, PHP
Frameworks
ASP.NET, Angular, jQuery, React
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
excellent
SEO
good

Security

Observed score
70/100
Good practices seen
  • Self-hosted solution avoiding third-party dependencies
  • No user tracking or stalking
  • Accessibility compliance
  • Regulatory compliance support

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a comprehensive source for BotDetect CAPTCHA products emphasizing privacy and accessibility.
  2. Strong focus on contrasting their product with Google reCAPTCHA highlighting privacy and compliance advantages.
  3. No direct contact emails or phone numbers found; contact is via support form.
  4. No explicit cookie consent mechanism detected despite GDPR compliance claims.
  5. Use of Google Analytics and Tag Manager indicates some user tracking.
  6. No security.txt or vulnerability disclosure policy found.
  7. No explicit security headers information available.
  8. Website content is extensive, well-structured, and professionally presented.
  9. No signs of adult or questionable content.
  10. WHOIS data supports legitimacy and long-term operation.
Technical notes

Notes

The website uses a combination of ASP.NET, Java, PHP, and JavaScript frameworks including jQuery, Angular, and React. Hosting is on Hetzner, a reliable provider. The site is moderately performant with good mobile optimization and excellent accessibility compliance. SEO practices are good with proper meta tags and structured navigation. No CMS was detected, indicating a custom or framework-based implementation. The site uses Google Analytics and Tag Manager for analytics, which introduces moderate tracking. There is room for improvement in security configurations and privacy mechanisms.
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 −1Medium30 findingsView report
  2. 74/100Medium24 findingsView report
  3. 74/100Medium24 findingsView report
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