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Security report for flexmail.nl

Flexmail · Technology · Netherlands

Low risk. 1 critical or high finding in SSL/TLS.

Security score

82/100

Risk levelLow

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

Flexmail is a well-established email marketing platform founded in 1998, offering a comprehensive suite of services including campaign management, marketing automation, and CRM segmentation. The company targets small business owners and marketing professionals primarily in the Netherlands and Belgium. The website demonstrates a mature technical infrastructure leveraging modern frameworks such as React and Gatsby, with integrations for analytics and marketing tools like Google Analytics, Hotjar, and Zapier. Security posture is strong with HTTPS and a strict Content-Security-Policy, though DNSSEC is not enabled and some security headers could be improved. Privacy compliance is limited due to the absence of explicit privacy and cookie policies in the provided content. Overall, the website is professional, trustworthy, and technically sound, but could enhance transparency and compliance documentation.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 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

1 finding rated critical or high. Fix these first.

  1. 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

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

Keep watching flexmail.nl

This scan found 16 issues across 5 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
77
Security headers
85
Email security
70
DNS health
60
Network security
100
GDPR outside view
100
Average
82

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

Flexmail holds a solid market position in the email marketing software sector, focusing on effective and personalized email campaigns. Its SaaS business model supports recurring revenue streams from marketing professionals and small businesses. The company benefits from a consistent brand presence and a broad partner ecosystem, including integrations with major analytics and marketing platforms. Growth indicators include a long domain history and extensive use of tracking and marketing technologies. However, the lack of visible contact information and compliance documentation may limit trust for some users.

Security posture

The website employs HTTPS with a robust Content-Security-Policy restricting resources to trusted domains, minimizing risks from cross-site scripting and data injection. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. However, DNSSEC is not enabled, which could improve DNS security. The absence of a security.txt file and incident response information suggests room for improvement in vulnerability disclosure and incident management. Overall, the security posture is good but could be enhanced with additional headers and documented policies.

Recommendations

  1. Enable DNSSEC to strengthen DNS security and prevent spoofing.
  2. Publish comprehensive privacy and cookie policies with clear GDPR compliance statements.
  3. Implement a cookie consent mechanism to comply with privacy regulations.
  4. Add visible and verified contact information including support and sales channels.
  5. Create and publish security policies and incident response procedures, including a security.txt file.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Flexmail
Description
Flexmail is het e-mailmarketing platform voor effectieve en gepersonaliseerde e-mails. Beheer je campagnes, analyseer statistieken en groei met onze software.
Key services
e-mail marketing platform, campaign management, statistical analysis, marketing automation, email newsletter creation, CRM segmentation
Content quality
excellent
Branding
consistent

Technology

Stack
React, Gatsby, Google Analytics, Google Tag Manager, Hotjar, Facebook Connect, Calendly, Zapier
Frameworks
React, Gatsby
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • Strict Content-Security-Policy with whitelisted domains
  • HTTPS enforced (implied by CSP and external scripts)
  • No object-src allowed
  • Form actions restricted to self

Analytics and tracking

Services
Google Analytics, Hotjar, Facebook Analytics, LinkedIn Analytics, Bing Analytics
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Google Ads, Bing Ads, LinkedIn Ads
Tracking pixels
Hotjar, Facebook Pixel, LinkedIn Pixel, Bing UET
Marketing tools
Zapier, Calendly, Iubenda
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and content rich.
  2. Strong use of modern web technologies and analytics.
  3. Good security headers but DNSSEC not enabled.
  4. No explicit privacy or cookie policies found in provided content.
  5. No visible contact emails or phone numbers in HTML snippet.
  6. Multiple external tracking and marketing services integrated.
  7. WHOIS data supports legitimacy and long-term operation.
Technical notes

Notes

The website is built using modern web technologies including React and Gatsby, ensuring good performance and SEO optimization. Integration with multiple analytics and marketing tools indicates a mature digital marketing strategy. The site is mobile optimized and uses a strict Content-Security-Policy to enhance security. Hosting and domain registration are consistent and reliable, provided by Combell. Performance is moderate with potential for improvement in accessibility features and additional security headers. The technical infrastructure supports scalability and robust marketing operations.
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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