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Security report for leadrebel.io

Leadinfo B.V. · Technology · Netherlands

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

Security score

62/100

Risk levelMedium

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

LeadRebel, now operating as Leadinfo, is a Netherlands-based technology company specializing in B2B lead generation software. Their platform enables businesses to identify website visitors, obtain detailed company and contact information, and track visitor behavior to enhance sales funnels. The company targets B2B organizations seeking affordable and user-friendly lead acquisition solutions, offering a SaaS model with a free trial and freemium options. The website demonstrates a consistent brand identity and strong trust signals including GDPR compliance and customer testimonials. Technically, the website employs modern web technologies such as Bootstrap, jQuery, Google reCAPTCHA, and integrates with popular CRM platforms. Hosting and DNS are managed through reputable providers, and performance and mobile optimization are good. The site includes cookie consent management and analytics tracking, reflecting a mature digital infrastructure. From a security perspective, the site uses HTTPS exclusively and implements reCAPTCHA on forms to mitigate spam. Cookie consent is managed via CookieFirst, supporting GDPR compliance. However, security headers are not visibly configured, and no explicit security or incident response policies are published. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the website presents a low-risk profile with strong business credibility and privacy compliance. Strategic improvements in security policy transparency and technical security headers would enhance the security posture further.

Scanned

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

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 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
    • 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 leadrebel.io

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

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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
52
Security headers
45
Email security
75
DNS health
80
Network security
40
GDPR outside view
80
Average
62

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

LeadRebel/Leadinfo occupies a niche in the B2B lead generation market, leveraging website visitor identification and data enrichment to provide actionable sales leads. Their competitive advantages include a large database of companies and contacts, ease of integration, and fair pricing. The business model is subscription-based SaaS with a free trial to attract users. The company has established partnerships with major CRM platforms, enhancing its ecosystem and market reach. Growth indicators include multilingual support and active marketing via blogs and lead magnets. The parent company Pulserio AG suggests a stable corporate backing. The company targets small to medium B2B enterprises looking to optimize lead acquisition and sales funnel efficiency.

Security posture

The website demonstrates a moderate to strong security posture with HTTPS enforced and anti-spam measures via Google reCAPTCHA. Cookie consent is actively managed, supporting GDPR compliance. However, the absence of visible security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces defense-in-depth. No published security policy or incident response contacts limit transparency and preparedness perception. No vulnerabilities or sensitive data leaks were found in the HTML content. Overall, the security maturity is good but could be improved by adopting standard security headers and publishing formal security documentation.

Recommendations

  1. Implement and configure standard security headers (CSP, HSTS, X-Frame-Options) to enhance protection against common web attacks.
  2. Publish a dedicated security policy page and provide incident response contact information to improve transparency and trust.
  3. Add a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  4. Conduct regular audits of third-party scripts and dependencies to mitigate risks from external libraries.
  5. Enhance accessibility compliance to improve usability for all users and meet regulatory standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Leadinfo B.V.
Description
Generate B2B leads with LeadRebel: Identify website visitors, find detailed company information and contacts. See who is visiting your website, track your website visitors. 14 days free trial!
Key services
Website visitor identification, Person-level identification, Visitor tracking, Data enrichment API, White label solutions
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap CSS, jQuery 3.7.1, Google reCAPTCHA v2, Tidio Chat, Google Tag Manager, CookieFirst consent management, RxJS, Paroller.js, WOW.js, Owl Carousel
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA on forms
  • Cookie consent banner with opt-in/out
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, LeadRebel analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Google Analytics (via GTM), LeadRebel analytics script
Marketing tools
Tidio Chat, CookieFirst consent management
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Strong GDPR compliance with cookie consent and privacy policy.
  3. Clear business model and target audience for B2B lead generation.
  4. Multiple integrations with major CRM platforms.
  5. Use of modern web technologies and tracking tools.
  6. No exposed security vulnerabilities detected in HTML content.
  7. Contact information is clearly provided with company domain email.
  8. No suspicious or malicious external links found.
Technical notes

Notes

The website is built on a modern technology stack including Bootstrap for responsive design, jQuery for DOM manipulation, and various JavaScript libraries for animations and UI enhancements. Google Tag Manager and Google Analytics are used for tracking, alongside a proprietary LeadRebel analytics script. Cookie consent is managed by CookieFirst, and user interaction is supported by Tidio Chat. The site is hosted with a reputable registrar and uses AWS DNS servers. Performance is moderate with deferred CSS and JavaScript loading. Mobile optimization is good, and SEO meta tags are properly configured. No CMS was detected, indicating a custom or bespoke platform. Opportunities exist to improve technical security and accessibility 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

Earlier scans of this domain

  1. 69/100Medium30 findingsView report
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