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Security report for sellio.net

vibration.sk · Technology · Slovakia

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

53/100

Risk levelMedium

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

Vibration.sk is a Slovak technology company specializing in custom development of e-commerce platforms, web applications, and websites. Their flagship product, Sellio, is a cloud-based, modular e-commerce platform supporting both B2B and B2C models, with advanced features such as headless CMS, AI-assisted content generation, and extensive integrations. The company positions itself as a provider of scalable, customizable digital solutions for businesses seeking tailored online sales and web presence. Technically, the website is built on WordPress with a modern tech stack including Vue.js, Symfony, PHP, and various cloud and CI/CD tools, indicating a mature and well-maintained infrastructure. Security posture is solid with HTTPS, reCaptcha, and cookie consent mechanisms, though the absence of published privacy and security policies suggests room for compliance improvement. Overall, the site is professional and trustworthy, targeting business clients in Slovakia and potentially broader markets.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 100 · Low
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

6 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 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
    • High

      Weak SSL Key Length

      SSL certificate uses 384-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching sellio.net

This scan found 24 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
52
Security headers
30
Email security
70
DNS health
60
Network security
20
GDPR outside view
85
Average
53

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 sellio.net, from OffSeq Breach.

Total records
10
Employees
0
Customers
10
Third parties
0
Weak passwords
0%

7 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for sellio.net.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

The company operates in the technology and e-commerce sectors, focusing on custom software solutions for online retail and business management. Their business model combines SaaS offerings (Sellio platform) with bespoke development services. Market positioning is strong in Slovakia with a 12+ year history, leveraging partnerships with major payment gateways, logistics providers, and marketing tools. The platform supports multi-shop, multi-currency, and multi-language capabilities, catering to diverse client needs. The company maintains active social media channels and integrates advanced marketing and analytics tools, indicating a data-driven approach to growth and client engagement.

Security posture

The website demonstrates a good security baseline with HTTPS, Google reCaptcha, and a cookie consent framework. However, it lacks visible security policies, incident response contacts, and vulnerability disclosure mechanisms, which are important for transparency and trust. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. The use of modern frameworks and cloud hosting suggests ongoing maintenance and updates. To enhance security maturity, the company should publish formal security and privacy documentation and implement additional HTTP security headers.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service accessible from the website footer or main menu.
  2. Add a dedicated security policy page including incident response contacts and procedures.
  3. Implement HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Conduct regular security audits of third-party scripts and cookie usage to ensure GDPR compliance.
  5. Enhance accessibility features to improve compliance and user experience for all visitors.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
vibration.sk
Description
Vývoj na mieru - eshopy na mieru, webové aplikácie a webové stránky.
Key services
Custom e-shop development, Web application development, B2B solutions, Web design and UX, Cloud-based e-commerce platform (Sellio), Product configurators, CRM and warehouse management modules
Content quality
good
Branding
consistent

Technology

Stack
Vue.js, Nuxt, Bootstrap, Sass, Capacitor, Lottie Files, Symfony, PHP, MySQL, API Platform, Node.js, Redis, Elasticsearch, GitLab, DigitalOcean
Frameworks
Symfony, Vue.js, Nuxt
Platforms
WordPress (CMS for main site), Sellio (custom e-commerce platform)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCaptcha
  • Cookie consent management
  • No exposed sensitive data found in HTML

Analytics and tracking

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

Advertising

Ad networks
Google Ads, Facebook Pixel
Tracking pixels
Facebook Pixel
Marketing tools
Newsletter, Google Shopping feed, Heureka, Facebook CAPI
Transparency
good

Site quality

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

Key observations

  1. Website uses WordPress CMS with custom Sellio platform integration.
  2. Comprehensive cookie consent mechanism via CookieHub.
  3. No explicit privacy policy or terms of service found on the analyzed page.
  4. Strong use of modern web technologies and frameworks.
  5. Active social media presence linked in the header.
  6. No direct contact emails or phone numbers found on this page.
  7. Good SEO and metadata implementation including Open Graph and JSON-LD structured data.
  8. No security.txt or vulnerability disclosure policy detected.
  9. No explicit security policy or incident response information available.
Technical notes

Notes

The website uses a modern and diverse technology stack combining WordPress CMS with a custom-built Sellio platform leveraging Vue.js, Nuxt, Symfony, PHP, and Node.js. Hosting appears to be on DigitalOcean with CI/CD pipelines via GitLab. The site is mobile-optimized and uses lazy loading for images, improving performance. SEO is well addressed with meta tags, Open Graph, and JSON-LD structured data. Cookie consent is managed via CookieHub, and analytics are implemented through Google Analytics and Tag Manager. The technical implementation is robust, though performance could be further optimized by auditing third-party scripts and enhancing accessibility compliance.
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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