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Security report for leadfeeder.com

Leadfeeder · Technology · Finland

Low risk. 2 critical or high findings in Security headers and GDPR outside view.

Security score

83/100

Risk levelLow

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

Leadfeeder is a Helsinki-based technology company specializing in B2B lead generation software that identifies companies visiting client websites and converts anonymous traffic into actionable sales leads. With over 80,000 users and a decade of market presence, Leadfeeder offers a mature SaaS platform integrating with major CRM and marketing tools, providing sales and marketing teams with qualified leads and buyer intent data. The company emphasizes GDPR compliance and data quality, supported by a robust IP-to-company identification database updated daily. Technically, the website employs modern web technologies including Google Tag Manager and Visual Website Optimizer for analytics and optimization. The site is well-designed, mobile-optimized, and provides a seamless user experience with clear navigation and comprehensive content. Security posture is good with HTTPS enforced and secure forms, though some security headers are missing and no explicit security policy or vulnerability disclosure is published. Overall, Leadfeeder demonstrates a strong security and privacy awareness aligned with GDPR requirements, though transparency in domain registration is lacking due to missing WHOIS data. The business is credible with consistent branding, active social media presence, and clear contact information. Strategic improvements in security headers and incident response transparency would enhance trust and security maturity.

Scanned

This is an earlier scan of leadfeeder.com. 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

2 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

  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

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

Keep watching leadfeeder.com

This scan found 15 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
45
Email security
85
DNS health
90
Network security
100
GDPR outside view
80
Average
83

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

Leadfeeder occupies a competitive position in the B2B SaaS lead generation market, leveraging a subscription-based model targeting sales and marketing professionals. Its competitive advantages include a comprehensive feature set, integration capabilities with popular CRMs like Salesforce and HubSpot, and a proprietary IP-to-company database that supports remote employee identification. The company’s revenue streams are primarily subscription fees with tiered pricing based on identified companies. The target customer segments are medium to large enterprises and agencies focused on account-based marketing and sales prospecting. Partnerships with Dealfront and integration with Zapier expand its ecosystem. Growth indicators include a large user base and continuous product enhancements. The company maintains a strong digital presence and invests in content marketing and customer education.

Security posture

Leadfeeder exhibits a mature security posture with enforced HTTPS, secure data collection forms, and GDPR compliance clearly stated. The website filters out bots and low-quality traffic, ensuring data integrity. However, the absence of key security headers such as Content-Security-Policy and Strict-Transport-Security reduces defense-in-depth. No public security policy or incident response plan is disclosed, and there is no vulnerability disclosure or security.txt file, which limits transparency for security researchers. Data protection practices are aligned with GDPR, focusing on company-level data and opt-in individual tracking. Incident response readiness and security culture indicators are not publicly visible, suggesting room for improvement in security communication and transparency.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance protection against common web attacks.
  2. Publish a detailed security policy and incident response plan on the website to improve transparency and preparedness.
  3. Establish a vulnerability disclosure program and publish a security.txt file to encourage responsible reporting and improve security posture.
  4. Enhance accessibility features to meet recognized standards and improve user inclusivity.
  5. Regularly audit and update third-party scripts and integrations to mitigate potential vulnerabilities and maintain compliance.

Contact details published on the site

Addresses
Legal name
Leadfeeder
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Leadfeeder
Description
Leadfeeder is a Helsinki-based startup committed to changing the way you think about buyer intent data. If you're tired of missing out on great leads — or wasting time on leads that don't convert— we can help.
Key services
Website visitor identification, Lead qualification and scoring, Contact discovery, CRM and marketing automation integrations
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Visual Website Optimizer (VWO), Google Fonts (Poppins), JavaScript, CSS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure forms with no visible sensitive data exposure
  • No detected vulnerable libraries

Analytics and tracking

Services
Google Tag Manager, Visual Website Optimizer
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Visual Website Optimizer
Marketing tools
Zapier, Visual Website Optimizer
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. Strong B2B SaaS focus on lead generation and visitor identification.
  3. Comprehensive privacy and terms pages present.
  4. Multiple integrations with major CRM and marketing platforms.
  5. Active social media presence with consistent branding.
  6. No security.txt or explicit security policy found.
  7. WHOIS data unavailable, which is unusual for an active commercial site.
Technical notes

Notes

The website is built with modern web technologies including asynchronous JavaScript loading, CSS preloading, and font optimization, contributing to good performance and user experience. It uses Google Tag Manager and Visual Website Optimizer for analytics and A/B testing, indicating a data-driven approach to optimization. The site is mobile responsive with clear navigation and structured content. However, no specific CMS or hosting provider is identified. Performance is moderate with room for improvement in loading speed and accessibility compliance. The technical infrastructure supports scalability and integration with multiple third-party services, but security header implementation and incident response mechanisms require enhancement 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. 84/100 +8Low21 findingsView report
  2. 76/100Low25 findingsView report
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