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Security report for sylviene.cz

Sylviene · E-commerce · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

60/100

Risk levelMedium

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

Sylviene is a Czech-based e-commerce retailer specializing in jewelry products, offering a wide range of items including rings, necklaces, bracelets, and personalized jewelry. The website targets general consumers interested in quality jewelry with a focus on customer service, including daily shipping and extended return policies. The business operates primarily online using the Shoptet platform, which provides a robust e-commerce infrastructure. The site demonstrates good digital maturity with modern tracking and marketing tools integrated, including Google Analytics and Facebook SDK, alongside GDPR-compliant cookie consent mechanisms. Security posture is solid with HTTPS enforced and CSRF protections in place, though some security headers could be improved and the jQuery library updated to a more recent version to mitigate vulnerabilities. The absence of WHOIS registration data is a notable concern, reducing domain trustworthiness, but the professional presentation and business signals on the site suggest legitimate operations. Overall, the site is safe, well-structured, and compliant with privacy regulations, serving a small-sized business in the Czech Republic's retail e-commerce sector.

Scanned

This is an earlier scan of sylviene.cz. View the latest report

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

8 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

    • 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

  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 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 sylviene.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.

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
52
Security headers
40
Email security
60
DNS health
80
Network security
100
GDPR outside view
25
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

Technical appendix

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

Business context

Business profile

Sylviene positions itself as a specialized online jewelry retailer with a comprehensive product catalog segmented by gender, occasion, and style. The business model is direct-to-consumer e-commerce, leveraging the Shoptet platform for sales and customer management. The company emphasizes quality assurance by being registered with the Czech hallmarking authority and offers customer-friendly policies such as extended returns and daily dispatch. Marketing efforts include promotions, discount codes, and active use of Google and Facebook advertising channels. The target market is Czech consumers seeking affordable yet quality jewelry. The lack of visible company registration or VAT numbers on the site limits transparency but is common in smaller e-commerce businesses. No partnerships or subsidiaries are explicitly indicated. Growth potential is supported by a well-maintained website and active marketing presence.

Security posture

The website employs HTTPS with a good SSL configuration, ensuring encrypted communications. Security best practices observed include CSRF tokens in forms and a cookie consent mechanism aligned with GDPR. However, the site lacks explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which are recommended to mitigate common web vulnerabilities. The use of an outdated jQuery version (1.11.3) presents a potential security risk due to known vulnerabilities in older versions. No visible signs of malware, phishing, or exposed sensitive data were detected. Incident response and security policy information are not publicly available, which is typical for small e-commerce sites but could be improved to enhance trust. Overall, the security posture is good but could benefit from updates and additional hardening.

Recommendations

  1. Update jQuery and other JavaScript libraries to the latest secure versions to reduce vulnerability exposure.
  2. Implement and verify HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a clear security policy and incident response contact information to improve transparency and trust.
  4. Verify and publish domain WHOIS information to enhance legitimacy and reduce suspicion.
  5. Conduct regular security audits and penetration testing to proactively identify and mitigate risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sylviene
Description
Malé třpytivé radosti na každý den. Odesíláme každý den do 12 hod. Výměna i vrácení je možné až do 90 dní.
Key services
Jewelry sales, Customer support, Shipping and returns
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.11.3, Google Tag Manager, Google Analytics, Shoptet platform scripts, Font Nunito, Font Jost, FontAwesome
Frameworks
Shoptet e-commerce platform
Platforms
Web desktop and mobile
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • CSRF tokens in forms

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads
Tracking pixels
Facebook Pixel (implied by Facebook SDK)
Marketing tools
Shoptet tracking, SmartSupp chat
Transparency
good

Site quality

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

Key observations

  1. Website is a professional e-commerce platform selling jewelry.
  2. Content is in Czech language targeting Czech customers.
  3. No WHOIS data available, which is a concern for domain legitimacy.
  4. Uses Shoptet e-commerce platform with standard tracking and marketing tools.
  5. Has cookie consent and privacy policy compliant with GDPR.
  6. No security blocking or WAF detected; site fully accessible.
  7. No explicit or adult content detected; safe for general audiences.
Technical notes

Notes

The website is built on the Shoptet e-commerce platform, utilizing jQuery 1.11.3 and various Shoptet-specific scripts for functionality. It integrates Google Tag Manager and Google Analytics for tracking, along with Facebook SDK for social media integration. Fonts used include Nunito and Jost, with FontAwesome icons. The site is mobile-optimized with responsive design and accessible navigation. Performance is moderate, with some large images and multiple external resources loaded from CDNs. SEO is supported by proper meta tags, Open Graph tags, and structured data. Accessibility is basic but present. Hosting provider details are not explicitly identified. The technical stack is typical for small to medium e-commerce sites but would benefit from modernization and performance optimization.
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

Earlier scans of this domain

  1. 53/100Medium28 findingsView report
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