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Security report for acemail.cz

Technology · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

50/100

Risk levelMedium

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

The website acemail.cz serves as a webmail client interface, powered by RainLoop Webmail software. It provides users with email management capabilities including support for PGP encryption and two-factor authentication, targeting general users seeking secure email access. The domain is registered since 2011 in the Czech Republic, indicating a mature service presence. Technically, the site uses modern JavaScript frameworks like Knockout.js and Bootstrap for UI rendering, but lacks advanced SEO and accessibility features. Security-wise, while it supports important features like 2FA and PGP, it lacks visible security headers and explicit privacy or cookie policies, which are critical for compliance and trust. Overall, the site is functional but could improve in transparency and security best practices.

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

9 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 acemail.cz

This scan found 23 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

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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
62
Security headers
30
Email security
85
DNS health
75
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 acemail.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for acemail.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

Acemail.cz operates as a webmail service provider, likely targeting individual and small business users in the Czech Republic. The business model revolves around providing email access and management through a web interface. The use of RainLoop Webmail suggests a focus on lightweight, user-friendly email solutions. There is no evidence of extensive marketing, partnerships, or certifications. The absence of contact information and business details limits the ability to assess revenue streams or growth indicators. The service appears to be a niche or specialized offering rather than a large-scale commercial enterprise.

Security posture

The security posture of acemail.cz shows moderate maturity. The site supports two-factor authentication and PGP encryption, which are strong security features for email confidentiality and user authentication. However, the lack of security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security reduces protection against common web attacks. No privacy or cookie policies are present, which is a compliance gap under GDPR. There is no visible incident response or vulnerability disclosure information, which limits transparency and user trust. The site uses HTTPS (implied by URL), but SSL configuration details are not available. Overall, the site should enhance its security headers and compliance documentation to improve its security posture.

Recommendations

  1. Implement comprehensive privacy and cookie policies with clear GDPR compliance statements.
  2. Add and enforce security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Publish incident response and vulnerability disclosure procedures to increase transparency and trust.
  4. Improve SEO and accessibility features to enhance user experience and discoverability.
  5. Provide clear business contact information and support channels to improve credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Webmail service interface
Key services
webmail access, email management, PGP encryption support, contact management, two-factor authentication
Content quality
basic
Branding
moderate

Technology

Stack
JavaScript, Knockout.js, jQuery (implied by bootstrap classes), Bootstrap CSS, RainLoop Webmail v1.14.0
Frameworks
Knockout.js, Bootstrap
Platforms
Web
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
poor

Security

Observed score
60/100
Good practices seen
  • Two-factor authentication support
  • PGP encryption integration
  • Password input fields with autocomplete off

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
basic
Navigation
basic
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website is a webmail client interface (RainLoop Webmail).
  2. No privacy, cookie, or terms of service policies found.
  3. No explicit contact information or business details provided on the page.
  4. Security features like two-factor authentication and PGP encryption are supported.
  5. No external analytics or advertising scripts detected.
  6. No WAF or blocking content detected.
  7. WHOIS data shows domain registered since 2011 with a Czech registrar.
Technical notes

Notes

The website uses RainLoop Webmail version 1.14.0, leveraging JavaScript frameworks such as Knockout.js and Bootstrap for UI components. The HTML structure is valid and includes meta tags for viewport and charset, but lacks Open Graph or JSON-LD structured data. Performance appears moderate with no heavy external dependencies detected. Mobile optimization is basic with a mobile version toggle available. SEO optimization is poor due to missing meta descriptions, titles beyond the basic, and robots meta tag set to noindex,nofollow. Accessibility features are minimal. The site does not use a CMS and hosting provider details are not discernible from the content. Overall, the technical implementation is functional but could benefit from modernization and enhanced SEO and accessibility.
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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