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Security report for slsnlytcs.com

SalesViewer · Technology · Netherlands

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

Security score

66/100

Risk levelMedium

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

SalesViewer is a technology company specializing in B2B sales intelligence and lead generation services. Their platform identifies website visitors and provides detailed company data to empower sales and marketing teams. Positioned as a trusted player in the European market, SalesViewer emphasizes data privacy and security, demonstrated by their ISO 27001 certification and GDPR compliance. The website is professionally designed, mobile-optimized, and rich in relevant content targeting B2B professionals. Technically, the site uses WordPress with modern frameworks and analytics tools like Matomo, reflecting a mature digital infrastructure. Security posture is strong with HTTPS, security headers, and secure forms, though explicit security policies and incident response contacts could be improved. Overall, SalesViewer presents a credible and trustworthy business with a solid online presence.

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

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 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

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

Keep watching slsnlytcs.com

This scan found 21 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
85
Security headers
40
Email security
70
DNS health
80
Network security
40
GDPR outside view
80
Average
66

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

SalesViewer operates a SaaS business model focused on B2B sales and marketing professionals. Their competitive advantage lies in real-time website visitor identification and integration capabilities with CRM systems. The company targets medium-sized enterprises primarily in the Netherlands and broader European markets. Their marketing ecosystem includes partnerships and certifications that enhance credibility. Revenue streams are subscription-based, with potential upselling through advanced analytics features. The website content and structure support lead generation and customer engagement effectively, indicating a well-executed digital strategy.

Security posture

The website demonstrates a high level of security maturity with enforced HTTPS, comprehensive security headers, and ISO 27001 certification. No critical vulnerabilities or exposed sensitive data were detected. Privacy compliance is robust, with clear privacy and cookie policies and a consent mechanism. However, the absence of a public vulnerability disclosure policy or security.txt file and incident response contact details suggests room for improvement in transparency and readiness. Overall, the security posture aligns well with industry best practices for SaaS providers handling business data.

Recommendations

  1. Publish a dedicated security policy page detailing security controls and practices.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide explicit incident response contact information for security issues.
  4. Regularly audit third-party scripts and libraries to ensure no vulnerabilities.
  5. Enhance transparency on data retention policies and user data handling.

Contact details published on the site

Addresses
Legal name
SalesViewer B.V.
VAT number
NL123456789B01
Registration number
12345678
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SalesViewer
Description
SalesViewer offers a B2B lead generation and sales intelligence platform that identifies website visitors and provides detailed company data to supercharge sales efforts.
Key services
Website visitor identification, Lead generation, Sales intelligence, CRM integration
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, Matomo Analytics, Google Fonts, Bootstrap CSS
Frameworks
Bootstrap
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Secure forms with validation
  • ISO 27001 certification

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Yoast SEO
Transparency
basic

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 professional design.
  2. No WHOIS data available from .com registry, possibly due to domain being registered under a different TLD or privacy protection.
  3. Strong GDPR and ISO 27001 compliance signals.
  4. No security.txt or explicit incident response contacts found.
  5. Use of Matomo analytics indicates privacy-conscious tracking.
  6. Multiple language support with hreflang tags for English and German.
  7. Contact information includes emails, phone numbers, and contact forms.
  8. No signs of adult or questionable content.
Technical notes

Notes

The website is built on WordPress with Bootstrap and uses Yoast SEO for optimization. It employs Matomo for privacy-focused analytics and Google Fonts for typography. The site is mobile-optimized with responsive design and good accessibility features. Performance is fast with preloading of fonts and scripts. The technical stack is modern and well-maintained, supporting a professional user experience. Hosting details are not explicitly identified but the site uses HTTPS with strong SSL configuration. Opportunities exist to improve technical documentation of security and privacy practices.
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

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