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Security report for syloe.com

Syloé · Technology · France

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

Security score

60/100

Risk levelMedium

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

Syloé is a French technology company specializing in open source software consulting, DevOps, cloud management, and IT infrastructure services. The company positions itself as an expert in Linux and open source environments, targeting IT professionals and businesses seeking specialized DevOps and cloud expertise. The website is professionally designed using WordPress with modern technologies and optimized for performance and mobile devices. Security posture is good with HTTPS enforced and use of reCAPTCHA, but lacks explicit security headers and published security policies. Privacy compliance is limited due to absence of visible privacy and cookie policies. WHOIS data for the domain is missing, which raises some concerns about domain registration legitimacy, though the website content suggests an established business since 2016. Overall, the site is trustworthy and professional but would benefit from enhanced transparency and security documentation.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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. 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';…

  2. GDPR outside view

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

    • 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

    • 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

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

Keep watching syloe.com

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

€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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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
67
Security headers
15
Email security
65
DNS health
80
Network security
100
GDPR outside view
35
Average
60

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 syloe.com, from OffSeq Breach.

No leaked records found

Breach holds no records for syloe.com 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

Syloé operates in the niche market of open source and DevOps consulting in France, offering services such as cloud infogérance, security audits, and performance testing. The business model is service-oriented, focusing on IT infrastructure and cloud solutions. The company maintains a blog with relevant industry content, indicating active engagement with its audience. The website branding is consistent and content quality is good, supporting a positive market position. However, the lack of WHOIS data and absence of explicit contact details on the homepage may limit trust for new visitors. The company appears to be small-sized and independent with no parent or subsidiary companies identified.

Security posture

The website enforces HTTPS and uses Google reCAPTCHA to protect forms, indicating a baseline security awareness. However, no explicit security headers such as Content-Security-Policy or X-Frame-Options were detected, which are recommended best practices. There is no visible incident response or vulnerability disclosure policy, nor contact channels dedicated to security issues. The absence of privacy and cookie policies reduces compliance with GDPR and other regulations. No vulnerabilities or exposed sensitive data were found in the HTML content. Overall, the security posture is moderate but could be improved by implementing additional headers, publishing security policies, and enhancing privacy compliance.

Recommendations

  1. Publish comprehensive privacy and cookie policies with clear GDPR compliance and consent mechanisms.
  2. Implement and configure security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Add a dedicated security or incident response page with contact information for vulnerability reporting.
  4. Verify and update WHOIS domain registration information to improve trust and legitimacy.
  5. Regularly audit and update WordPress core, themes, and plugins to mitigate security risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Syloé
Description
Syloé, spécialiste du logiciel libre, accompagne ses clients sur les thématiques : Infogérance, DevOps, environnements Open Source et cloud.
Key services
Infogérance cloud, DevOps consulting and automation, Open Source environments, Cloud hosting and management, Security audits, Performance audits
Content quality
good
Branding
consistent

Technology

Stack
WordPress 5.8.7, PHP, jQuery 3.6.0, Bootstrap, Owl Carousel, Fancybox, Google Fonts, Yoast SEO plugin, WP Rocket caching, Matomo analytics
Frameworks
WordPress
Platforms
Web
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA
  • No exposed sensitive data in HTML
  • Use of security plugins (implied by WordPress ecosystem)

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Matomo
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 challenges.
  2. Content is in French and targets IT professionals and businesses.
  3. No explicit privacy, cookie, or terms of service policies found on homepage content.
  4. No explicit contact emails or phone numbers found in provided HTML content.
  5. Use of Matomo analytics indicates some privacy-conscious tracking.
  6. Website uses modern web technologies and caching for performance.
  7. WHOIS data is missing, which is unusual and warrants further investigation.
Technical notes

Notes

The website is built on WordPress 5.8.7, leveraging popular libraries such as jQuery, Bootstrap, Owl Carousel, and Fancybox. It uses WP Rocket for caching and performance optimization, and Google Fonts for typography. Analytics are handled via Matomo, indicating a preference for privacy-friendly tracking. The site is mobile optimized with responsive design and good SEO practices including meta tags and structured data (JSON-LD). No major technical debt or performance issues were detected. Hosting provider details are not explicit in the content. Overall, the technical infrastructure is modern and well-maintained.
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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