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Security report for mailplus.nl

Spotler · Technology · Netherlands

Medium risk. 5 critical or high findings in Security headers and SSL/TLS.

Security score

72/100

Risk levelMedium

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

Spotler is a medium-sized technology company founded in 2014, specializing in marketing cloud solutions that enable marketers to leverage data-driven marketing automation and campaign personalization. The company targets marketing professionals and businesses seeking to improve marketing effectiveness through connected tools and data insights. Their market position is solid within the Netherlands and broader European markets, supported by a professional and well-branded online presence. Technically, the website is built on WordPress with modern SEO and multilingual capabilities via WPML. It uses Cloudflare for DNS and CDN services, Google Tag Manager for analytics, and Cookiebot for cookie consent management. The site is mobile-optimized, accessible, and performs moderately well, reflecting a mature digital infrastructure. From a security perspective, the site enforces HTTPS, uses clientTransferProhibited domain status, and implements cookie consent mechanisms. However, DNSSEC is not enabled, and explicit security headers and policies are not clearly documented. No incident response or vulnerability disclosure information is publicly available, which could be improved to enhance trust and compliance. Overall, Spotler's website demonstrates a high level of professionalism, compliance with GDPR, and a strong business credibility score. The risk profile is low, with recommendations focusing on enhancing DNS security, publishing security policies, and improving transparency around incident response.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 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

5 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
    • 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';…

  2. 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

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Keep watching mailplus.nl

This scan found 20 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.

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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
57
Security headers
25
Email security
82
DNS health
85
Network security
100
GDPR outside view
83
Average
72

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

Spotler operates in the competitive marketing technology sector, offering SaaS solutions that integrate data and marketing automation. Their business model revolves around subscription-based software services targeting marketing teams and enterprises. The company leverages partnerships with marketing platforms and analytics providers to enhance their offerings. Growth indicators include a decade-long domain presence and active social media engagement. Strategic observations suggest a focus on expanding market reach through multilingual support and integration with popular marketing tools, positioning Spotler as a reliable mid-market player in the marketing cloud space.

Security posture

Spotler exhibits a mature security posture with HTTPS enforced and domain transfer protections in place. The use of Cloudflare DNS and cookie consent tools indicates awareness of security and privacy best practices. However, the absence of DNSSEC, security.txt, and explicit security policies or incident response contacts represents gaps in their security maturity. No vulnerabilities or exposed sensitive data were detected in the analysis. Compliance with GDPR is evident through cookie consent and privacy policy implementations. Enhancing security headers and publishing incident response details would strengthen their security culture and readiness.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS integrity and prevent spoofing.
  2. Implement and verify comprehensive HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a security.txt file to provide clear vulnerability disclosure and incident response contacts.
  4. Add explicit security policy documentation and dedicated security contact channels (e.g., security@spotler.com).
  5. Regularly audit third-party scripts and libraries to ensure no vulnerable components are in use.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Spotler
Description
Spotler offers marketers user-friendly data driven marketing software to easily engage with you audience and improve your marketing.
Key services
Marketing automation, Data integration, Campaign management, Personalization tools
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, PHP, JavaScript, Google Tag Manager, Cookiebot, Cloudflare DNS
Frameworks
Rank Math SEO, WPML (multilingual CMS)
Platforms
WordPress CMS
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Cookie consent mechanism implemented
  • Use of Cloudflare for DNS and security

Analytics and tracking

Services
Google Analytics, Google Ads
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads
Tracking pixels
Trustpilot, Cookiebot, Usercentrics
Marketing tools
Spotler Marketing Cloud, Cookiebot, Trustpilot
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 no blocking or WAF challenges.
  2. Comprehensive cookie consent and privacy mechanisms implemented.
  3. Strong SEO and structured data usage for enhanced search presence.
  4. Use of multiple third-party marketing and analytics tools.
  5. No explicit security policy or incident response contact found.
  6. No security.txt or vulnerability disclosure page detected.
  7. Domain registration and website content are consistent and trustworthy.
Technical notes

Notes

The website is built on a WordPress CMS platform enhanced with WPML for multilingual support and Rank Math PRO for SEO optimization. It integrates modern JavaScript libraries including Lottie for animations and Google Tag Manager for analytics and marketing tags. Hosting and DNS are managed via Cloudflare, providing CDN and security benefits. Performance is moderate with good mobile responsiveness and accessibility features. The technical stack is modern and well-maintained, though opportunities exist to improve security headers and DNS security. The site architecture supports scalability and internationalization, aligning with business growth objectives.
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. 73/100Medium28 findingsView report
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