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Security report for leadfeeder.com

Leadfeeder · Technology · Finland

Low risk. 3 critical or high findings in Security headers and GDPR outside view.

Security score

76/100

Risk levelLow

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

Leadfeeder is a Helsinki-based technology company specializing in B2B lead generation software. Founded in 2013, it offers a SaaS platform that identifies companies visiting client websites, qualifies leads using behavioral and firmographic data, and integrates with major CRM and marketing automation tools. The company has a strong market presence with over 80,000 users and notable clients such as Amazon and T-Mobile. Their business model includes a free tier and paid subscriptions, targeting sales and marketing teams seeking to optimize lead conversion. Technically, Leadfeeder leverages a modern web technology stack including Amazon AWS for hosting and SSL, Google Tag Manager, Google Analytics, Visual Website Optimizer for A/B testing, and Dreamdata for analytics. The site employs a comprehensive cookie consent mechanism via CookieHub, ensuring GDPR compliance. Performance is moderate with good mobile optimization and basic accessibility features. From a security perspective, the website uses a valid SSL certificate issued by Amazon and enforces strict email authentication with SPF and DMARC policies set to reject unauthorized emails. However, it lacks DNSSEC and HSTS, and the CAA records appear misconfigured, indicating areas for improvement. No explicit security or incident response policies are publicly available. Overall, Leadfeeder demonstrates a mature digital presence with strong business and technical foundations. Enhancing security headers and publishing clear security policies would further strengthen trust and compliance.

Scanned

This is an earlier scan of leadfeeder.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
43/ 100 · High
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

3 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 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 leadfeeder.com

This scan found 18 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
92
Security headers
45
Email security
85
DNS health
90
Network security
100
GDPR outside view
43
Average
76

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 operates in the technology sector, focusing on B2B lead generation and sales enablement. Its competitive advantage lies in its ability to identify anonymous website visitors as companies, even when employees work remotely, using a proprietary and frequently updated IP-to-company database. The company offers extensive integrations with popular CRMs like Salesforce, HubSpot, and Pipedrive, facilitating seamless data flow and sales workflows. Its pricing strategy is competitive, offering a free tier and scalable paid plans based on identified companies. The target customers are sales and marketing teams, agencies, and enterprises seeking to improve lead quality and conversion rates. The company maintains a strong partnership ecosystem, including Dealfront, and actively engages users through educational resources and a comprehensive FAQ. Growth indicators include a large user base and consistent feature enhancements.

Security posture

Leadfeeder exhibits a solid security posture with key strengths in transport security and email authentication. The SSL certificate is valid and issued by a reputable authority (Amazon RSA 2048 M03). SPF and DMARC records are properly configured with a strict reject policy, reducing email spoofing risks. However, the absence of DNSSEC and HSTS headers represents potential vulnerabilities in DNS integrity and transport security. The CAA records are present but appear misconfigured, which could affect certificate issuance controls. No explicit security policy or incident response information is publicly disclosed, which may impact transparency and readiness. The site employs a comprehensive cookie consent mechanism, supporting GDPR compliance. Overall, the security maturity is moderate, with room for improvement in DNS security and security policy publication.

Recommendations

  1. Enable HTTP Strict Transport Security (HSTS) with includeSubDomains and preload to enhance transport layer security.
  2. Implement DNSSEC to protect against DNS spoofing and ensure DNS integrity.
  3. Correctly configure CAA records to specify authorized certificate authorities and prevent unauthorized certificate issuance.
  4. Publish a clear security policy and incident response plan on the website to improve transparency and preparedness.
  5. Add additional security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.

Contact details published on the site

Addresses
Legal name
Leadfeeder
Technical notes

Notes

The website is built on a modern JavaScript stack with extensive use of third-party analytics and marketing tools including Google Analytics, Visual Website Optimizer, Dreamdata, and CookieHub. Hosting is provided by Amazon AWS, ensuring reliable infrastructure and SSL certificate issuance. The site uses Google Tag Manager for tag management and integrates with multiple CRM and marketing platforms. Performance is moderate with a page load time of approximately 8.2 seconds and a page size of about 810 KB, indicating potential optimization opportunities. Mobile optimization is good, with responsive design and preloading of critical assets. Accessibility is basic, with standard HTML5 semantics and ARIA roles. SEO optimization is good, with comprehensive meta tags, Open Graph, and JSON-LD structured data. The site employs advanced A/B testing and personalization frameworks (VWO) to optimize user experience and conversion.
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 +1Low21 findingsView report
  2. 83/100Low23 findingsView report
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