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Security report for mailocator.cz

Mailnatives s.r.o. · Technology · Czech Republic

Medium risk. 10 critical or high findings in GDPR outside view, Email security and 1 other check.

Security score

56/100

Risk levelMedium

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

Mailocator is a Czech-based premium display marketing platform focused on increasing conversions and collecting valuable marketing data through smart widgets and campaigns. Founded in 2016 and operated by Mailnatives s.r.o., it serves e-commerce businesses, content websites, marketing agencies, and developers with a SaaS model offering over 55 integrations with popular email marketing and CRM tools. The website is professionally designed, mobile-optimized, and rich in content, providing clear navigation and comprehensive business information including contact details and case studies. Technically, the site uses modern JavaScript, Google Tag Manager, and asynchronous script loading, hosted by Active24, but lacks some advanced security headers and explicit privacy documentation. Security posture is moderate with HTTPS implied and cookie consent implemented, but no visible security policy or incident response information. Overall, the domain registration data aligns well with the business claims, indicating legitimacy and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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 mailocator.cz

This scan found 25 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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  • 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
95
Security headers
15
Email security
40
DNS health
75
Network security
100
GDPR outside view
10
Average
56

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 mailocator.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for mailocator.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

Mailocator occupies a niche in the marketing technology sector, offering a comprehensive platform for lead generation and conversion optimization. Its competitive advantage lies in the breadth of campaign types and integrations, enabling marketers to deploy complex scenarios without coding. The business model is subscription-based SaaS targeting small to medium enterprises and marketing professionals. The company demonstrates growth through multiple client case studies and a broad integration ecosystem. Partnerships with related domains hosting complementary products enhance its market presence. The company maintains a clear brand identity and consistent messaging focused on conversion efficiency and ease of use.

Security posture

The website demonstrates a moderate security maturity level with HTTPS usage and cookie consent mechanisms in place. However, it lacks explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options, which are recommended to mitigate common web vulnerabilities. There is no publicly available security policy or incident response contact information, which could hinder transparency and trust in security matters. No vulnerability disclosure or security.txt file is present, limiting external reporting of security issues. The use of Google Tag Manager and Facebook Pixel indicates moderate user tracking, which should be balanced with privacy compliance. Overall, the security posture is adequate for a marketing platform but could be improved to meet higher standards and regulatory requirements.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a clear security policy and incident response contact information to improve transparency and trust.
  3. Add a dedicated privacy policy page detailing data collection, usage, and retention practices to strengthen GDPR compliance.
  4. Introduce a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  5. Enhance accessibility features and conduct regular security audits to maintain a robust security culture.

Contact details published on the site

Addresses
Legal name
Mailnatives s.r.o.
Registration number
07891768
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mailnatives s.r.o.
Description
Prémiová platforma pro display marketing zaměřená na zvýšení konverzí a data pro marketing. Nástroj pro sběr kontaktů, dat a zvýšení prodeje pomocí chytrých widgetů a kampaní.
Key services
Lead generation, Multistep pop-up kampaně, Infoboxy a notifikace, Gamifikace, Countdown, Doporučování produktů, Zpětná vazba, Webforms, Landing pages
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Google Fonts, Custom JS scripts
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS usage (implied by URL)
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Tag Manager, Facebook Pixel
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel
Marketing tools
Mailocator platform scripts
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 no blocking mechanisms.
  2. Content is in Czech language, targeting Czech and possibly Central European markets.
  3. Strong focus on marketing technology and lead generation solutions.
  4. Multiple integrations with popular email marketing and CRM platforms.
  5. Contact information is clearly presented with emails, phone numbers, and physical address.
  6. Cookie consent mechanism is implemented but no explicit cookie policy page found.
  7. No explicit privacy policy page found but terms of service are present under obchodni-podminky.
  8. No visible security policy or incident response information.
  9. No security.txt or vulnerability disclosure found.
  10. Use of modern web fonts and asynchronous loading of scripts.
Technical notes

Notes

The website is built with modern web technologies including asynchronous JavaScript loading and Google Fonts, ensuring good performance and user experience. The presence of Google Tag Manager and Facebook Pixel enables advanced analytics and marketing capabilities. Hosting is provided by Active24, a reputable Czech hosting provider. The site is mobile-optimized with responsive design and clear navigation. However, the absence of a known CMS suggests a custom or proprietary solution, which may require dedicated maintenance resources. Performance is moderate with potential for optimization in loading times and accessibility compliance. The technical infrastructure supports the business goals effectively but would benefit from enhanced security configurations and documentation.
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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