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Security report for lammersmakelaars.nl

Lammers NVM Makelaars · Real Estate · Netherlands

High risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

48/100

Risk levelHigh

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

Lammers NVM Makelaars is a well-established real estate agency based in Zoetermeer, Netherlands, operating since 1998. The company specializes in residential property sales, purchases, and valuations, focusing on local expertise and personalized service. Their market position is strong within the local community, supported by high customer ratings on platforms like Funda and membership in the NVM professional association. The website reflects a professional business model targeting homeowners and buyers in the Zoetermeer area. Technically, the website uses a modern but somewhat dated tech stack including Bootstrap 3 and jQuery, with integrations for Google Tag Manager and marketing platforms. The site is mobile responsive at a basic level and SEO optimized with proper meta tags and structured navigation. Security posture is good with HTTPS enforced and no visible sensitive data exposure, but lacks advanced security headers and explicit incident response or security policies. Privacy compliance is partial, with a privacy policy present but no cookie consent mechanism detected. Overall, the site is trustworthy and professional, with room for improvement in security and privacy transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 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

8 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • 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

  2. 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
    • 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';…

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Keep watching lammersmakelaars.nl

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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
72
Security headers
25
Email security
70
DNS health
60
Network security
20
GDPR outside view
40
Average
48

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 holds a niche position as a local real estate expert in Zoetermeer, leveraging over 30 years of experience and strong community ties. Their competitive advantage lies in deep local knowledge, NVM certification, and excellent customer satisfaction scores. The business model is service-oriented, focusing on property sales, purchases, and valuations, with additional digital services like online house valuation reports. Revenue streams likely come from commissions on sales and valuation fees. The target customer segment includes local homeowners and prospective buyers. Partnerships with NVM, tophuis.nl, and other real estate networks enhance credibility and market reach. The company maintains a consistent brand image and professional online presence, supporting steady growth and customer trust.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is properly implemented, ensuring encrypted communications. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces protection against common web attacks like clickjacking and MIME sniffing. No evidence of exposed sensitive data or vulnerable libraries was found. The site lacks published security policies or incident response contacts, which could hinder rapid response to security incidents. GDPR compliance is partially addressed with a privacy policy, but the lack of a cookie consent mechanism is a compliance gap. Overall, the security posture is adequate for the business type but could be enhanced with better headers, explicit policies, and consent management.

Recommendations

  1. Implement comprehensive cookie consent mechanism to ensure GDPR compliance and user transparency.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to improve protection against web vulnerabilities.
  3. Publish a clear security policy and incident response contact information on the website to enhance trust and preparedness.
  4. Regularly audit third-party scripts and libraries to ensure no vulnerabilities are introduced.
  5. Consider modernizing the tech stack and improving mobile responsiveness and accessibility for better user experience.

Contact details published on the site

Addresses
Legal name
Lammers NVM Makelaars
Registration number
KvK: 27184094
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Lammers NVM Makelaars
Description
Lammers Makelaars is sinds 1998 dé makelaar in Zoetermeer die niet alleen de gemeente kent maar ook de inwoners. Naast verstand van vastgoed kunt u rekenen op een specialist die luistert, informeert en meedenkt om zo de perfecte koper van uw woning te vinden. Als NVM makelaar met een hoge waardering op funda bent u verzekerd van een uitstekende service en de beste verkoop - en aankoopresultaten.
Key services
Verkopen, Aankoop, Taxaties, Waarderapport
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap 3.3.4, Font Awesome, Google Tag Manager, Google Marketing Platform, DatHuis Widget
Frameworks
Bootstrap
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager for analytics

Analytics and tracking

Services
Google Tag Manager, Google Marketing Platform
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
DoubleClick
Tracking pixels
DoubleClick
Marketing tools
Google Marketing Platform, DatHuis Widget
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and content rich for a local real estate agency.
  2. No signs of malicious or suspicious activity.
  3. Good use of trusted third-party services for analytics and marketing.
  4. Lacks explicit cookie consent mechanism despite GDPR compliance indication.
  5. No visible security headers which could improve security posture.
Technical notes

Notes

The website is built on a classic web stack using Bootstrap 3.3.4 and jQuery 1.12.4, with additional CSS and JS resources loaded from trusted CDNs. Google Tag Manager and Google Marketing Platform are used for analytics and marketing, alongside a custom widget from DatHuis. The site uses a custom or proprietary CMS or framework, as no common CMS signatures were detected. Performance is moderate, with some potential for optimization given the use of older libraries. Mobile optimization is basic but functional. SEO is well addressed with proper meta tags, canonical links, and structured navigation. Accessibility features are minimal but present. Hosting provider details are not explicit, but the site is served over HTTPS with a valid SSL certificate. Overall, the technical infrastructure is stable but could benefit from modernization and enhanced security configurations.
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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