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Security report for zaclys.com

Zaclys · Technology · France

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

72/100

Risk levelMedium

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

Zaclys is a French-based provider of open-source, privacy-respecting web and cloud services targeting individuals, families, small organizations, and professionals. With over 42,000 users and a subscription-supported business model, Zaclys offers a broad portfolio of services including cloud storage, email, social networking (Mastodon), collaborative tools, and video conferencing. The website is professionally designed using WordPress and Divi, with a focus on accessibility and user experience. Technically, the site employs modern web technologies and plugins to support user management and GDPR compliance. Security posture is solid with HTTPS and cookie consent mechanisms, though explicit security headers and vulnerability disclosures are absent. The WHOIS data is missing, which raises some concerns about domain registration transparency, but the website content and service offerings appear legitimate and trustworthy. Overall, Zaclys presents a mature, privacy-conscious service provider with a strong community and partnership ecosystem.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 100 · Medium
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 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. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. 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 zaclys.com

This scan found 22 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

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Full report

€39.90one-time

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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
25
Email security
85
DNS health
85
Network security
100
GDPR outside view
65
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

Zaclys occupies a niche in the French market as a non-profit or community-oriented cloud and web service provider emphasizing privacy and solidarity. Its competitive advantage lies in offering free core services supported by affordable subscriptions, a wide range of Nextcloud-based applications, and integration with federated social networks like Mastodon. The business model relies on subscriptions rather than advertising, enhancing user trust. Zaclys serves a diverse customer base including families, small businesses, associations, and public institutions. The partnership with the CHATONS collective strengthens its market position as a transparent and ethical hosting provider. Growth indicators include a sizable user base and continuous service expansion. The company maintains a strong online presence with multiple service subdomains and active community engagement.

Security posture

Zaclys demonstrates a good security maturity level with mandatory HTTPS, cookie consent via Tarteaucitron.js, and use of security-conscious plugins. However, the absence of explicit security headers like Content-Security-Policy and lack of published security policies or incident response contacts indicate room for improvement. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site does not appear to use extensive tracking or advertising scripts, aligning with privacy best practices. Compliance with GDPR is evident through dedicated pages and consent mechanisms. Incident response readiness and vulnerability disclosure processes are not publicly documented, which could be a gap in security culture. Overall, the security posture is solid but could be enhanced by formalizing policies and improving header configurations.

Recommendations

  1. Implement and publish a formal security policy and incident response contact information to improve transparency and readiness.
  2. Add and enforce security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen browser security.
  3. Publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting and improve security posture.
  4. Enhance accessibility compliance to improve usability for all users, including those with disabilities.
  5. Regularly audit and update third-party plugins and dependencies to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Zaclys
Description
Petit moulin à services numériques français, pourvoyeur de SERVICES WEB, confectionnés avec soin, durables, SOLIDAIRES et RESPECTUEUX de la VIE PRIVÉE
Key services
Cloud storage and email (ZSuite, ZMail), Social network (Mastodon), Blogs (WriteFreely), File sharing (Envoi), Virtual USB key (Zclé), Search engine (zoTop), Password manager (ZSecrets), Event management (MobiliZon), Messaging (ZChat, Mattermost, Zulip), Video conferencing (BigBlueButton)
Content quality
good
Branding
consistent

Technology

Stack
WordPress 6.8.3, Divi Theme 4.27.4, jQuery 3.7.1, Ultimate Member plugin 2.10.6, Contact Form 7 plugin 6.1.2, Yoast SEO plugin 26.1.1, Tarteaucitron.js for cookie consent, MediaElement.js, Nextcloud apps (implied)
Frameworks
WordPress CMS, PHP (implied by WordPress), Nextcloud (for cloud services)
Platforms
Web, Cloud hosting on dedicated servers
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of security plugins (Ultimate Member with GDPR support)

Analytics and tracking

Tracking level
minimal
Privacy practices
excellent

Advertising

Transparency
excellent

Site quality

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

Key observations

  1. Website is fully accessible with rich content and navigation
  2. French language with some English UI elements
  3. Strong focus on privacy and open-source services
  4. No direct company emails or phone numbers found on main pages
  5. Contact primarily via web forms
  6. Cookie consent implemented with Tarteaucitron.js
  7. No visible security.txt or vulnerability disclosure
  8. WHOIS data missing, raising some legitimacy questions
  9. No advertising or tracking scripts detected beyond cookie consent and YouTube embeds
Technical notes

Notes

The website is built on a modern WordPress CMS platform using the Divi theme and several well-maintained plugins including Ultimate Member for user management and Contact Form 7 for forms. The tech stack includes jQuery and various JavaScript libraries for UI and cookie consent management. The site loads efficiently with moderate performance and good mobile responsiveness. SEO is supported by Yoast SEO plugin and proper meta tags including Open Graph and JSON-LD structured data. Hosting appears to be on dedicated servers, supporting a range of cloud services including Nextcloud apps. Technical debt is minimal, but explicit security headers and some accessibility features could be improved. The site architecture supports a rich set of services and user interactions with a clear navigation structure.
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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