Skip to main content

Security report for netmailing.cz

NetSystems Solution s.r.o. · Technology · Czech Republic

Medium risk. 10 critical or high findings in GDPR outside view, Security headers and 3 other checks.

Security score

50/100

Risk levelMedium

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

NetMailing, operated by NetSystems Solution s.r.o., is a Czech-based email marketing service provider offering comprehensive email campaign management, custom tool development, graphic design, and a proprietary mailing system. The company positions itself as a full-service partner handling all aspects of email marketing for clients, emphasizing ease of use and tailored solutions. The website reflects a professional and consistent brand with clear service offerings and client references. Technically, the site uses modern web technologies including JavaScript and jQuery, and is built on a proprietary CMS by the parent company. It is mobile optimized and includes cookie consent mechanisms, indicating awareness of privacy regulations. Security posture is adequate with HTTPS enforced, but lacks advanced security headers and published security policies. WHOIS data is unavailable, which reduces domain trust verification, but the business information and website content suggest legitimacy. Overall, the site is well designed, user-friendly, and suitable for its target audience of businesses seeking email marketing services.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

10 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  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';…

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

Keep watching netmailing.cz

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.

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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
20
Email security
80
DNS health
85
Network security
20
GDPR outside view
25
Average
50

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention netmailing.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for netmailing.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

NetMailing operates in the technology sector, specifically in email marketing services. The business model is service-oriented, providing end-to-end email marketing solutions including campaign design, data handling, and custom development. The company targets small to medium-sized enterprises and organizations requiring professional email marketing without managing complex systems themselves. Market positioning is supported by 12 years of experience and a high volume of annual emails sent, indicating operational scale. The parent company, NetSystems Solution s.r.o., provides the CMS platform and technical infrastructure. The website showcases client references and emphasizes personalized service, which are competitive advantages. Revenue streams likely include service fees for campaign management, custom tool development, and consulting. The partnership ecosystem includes client companies such as Federal Cars. Strategic observations suggest a focus on quality service delivery and client trust building.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enabled and a cookie consent mechanism in place, supporting GDPR compliance. However, it lacks visible security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which are recommended best practices. No explicit security policies, incident response contacts, or vulnerability disclosure mechanisms are published, indicating gaps in transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the content. The absence of WHOIS data limits domain trust verification and may raise concerns about domain registration transparency. Overall, the security posture is adequate for a marketing service website but could be improved by implementing additional security headers and publishing security-related policies and contacts.

Recommendations

  1. Implement HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a clear security policy and incident response contact information on the website to improve transparency and readiness.
  3. Consider creating and publishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  4. Verify and publish WHOIS domain registration data or use a registrar that provides transparent registration information to improve domain trustworthiness.
  5. Enhance accessibility features and conduct regular security audits to maintain and improve overall security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NetSystems Solution s.r.o.
Description
Kompletní služby email marketingu. Emailing na míru se souvisejícími službami.
Key services
Full email marketing service, Campaign evaluation, Custom tools development, Graphic and HTML template design, Custom mailing system
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, jQuery, HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF detected.
  2. WHOIS data is missing or privacy protected, limiting domain trust verification.
  3. Site uses HTTPS and has cookie consent mechanisms indicating privacy awareness.
  4. No explicit security policies or incident response contacts published.
  5. Business information is clear and consistent with a small technology service provider.
  6. Content is professional, relevant, and safe for general audiences.
  7. Google Tag Manager is used for analytics and tracking.
  8. No social media links detected in the provided content.
Technical notes

Notes

The website is built using standard web technologies including HTML5, CSS3, JavaScript, and jQuery. It uses a proprietary CMS developed by the parent company NetSystems Solution s.r.o. The site includes asynchronous loading of scripts and a cookie consent banner, indicating attention to performance and privacy. The design is responsive and optimized for mobile devices. SEO is supported by appropriate meta tags and structured navigation. Performance is moderate, with no major issues detected. There is no evidence of third-party hosting providers or CDN usage in the provided data. The technical infrastructure appears stable but could benefit from modern security enhancements and accessibility improvements.
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

Reviews of this site

Share your experience with netmailing.cz. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review netmailing.cz.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.