Skip to main content

Security report for webproskoly.cz

ARSY line, s.r.o. · Education · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

60/100

Risk levelMedium

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

ARSY line, s.r.o. operates the website www.webproskoly.cz, providing specialized web hosting and content management solutions tailored for Czech primary and kindergarten schools. The company offers a subscription-based model with no upfront investment, focusing on modern, accessible, and legislatively compliant web platforms. Their services include modules for photo galleries, news updates, event calendars, and integration with school meal systems, targeting educational institutions in the Czech Republic. The website demonstrates a professional and consistent brand presence with strong customer testimonials and clear contact information. Technically, the site employs a modern technology stack including jQuery, Google Tag Manager, Facebook Pixel, and proprietary CMS components. It is optimized for mobile devices and accessibility, with good SEO practices and performance. The site uses HTTPS and consent-based cookie management, reflecting a good security posture, though some security headers could be improved. No critical vulnerabilities or exposed sensitive data were detected. The security posture is solid with HTTPS enforcement and CAPTCHA on forms, but lacks explicit published security policies or incident response contacts. Privacy compliance is strong with a comprehensive privacy policy and cookie consent mechanism. The absence of WHOIS data limits domain trust assessment, but the website content and business information appear legitimate and professional. Overall, the website is a well-executed niche educational service platform with good technical and security practices, though improvements in transparency around security policies and WHOIS data availability would enhance trust and compliance.

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

6 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 Consent Banner found

      GDPR requires explicit consent for non-essential cookies

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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, YouTube, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

  2. 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 webproskoly.cz

This scan found 19 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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. See sample alerts.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

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
80
Email security
85
DNS health
75
Network security
20
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

The company occupies a niche market providing web solutions specifically for Czech schools and kindergartens, leveraging a SaaS subscription model. Their competitive advantage lies in tailored features such as legislative compliance, accessibility, and integration with local school systems like STRAVA.CZ. The business model focuses on ease of use, cost efficiency, and time savings for school administrators. The presence of multiple positive testimonials and active social media channels indicates a growing and engaged customer base. The company appears small but specialized, with no evidence of subsidiaries or parent companies. Their partnership with ARSY line for development suggests a close vendor relationship. The business is well-positioned to expand within the Czech educational sector, leveraging digital transformation trends in schools.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and multiple security best practices such as consent-based cookie management and CAPTCHA on forms. Use of third-party analytics and marketing tools is managed with user consent, aligning with GDPR requirements. However, the absence of explicit security policies, incident response contacts, and vulnerability disclosure mechanisms indicates room for improvement in transparency and readiness. No critical vulnerabilities or exposed sensitive data were found in the analysis. Security headers could be enhanced by adding Content-Security-Policy and Referrer-Policy headers. Overall, the security posture is good but could benefit from formalized policies and incident response information to increase stakeholder confidence.

Recommendations

  1. Implement and publish a formal security policy and incident response plan on the website.
  2. Add Content-Security-Policy, Referrer-Policy, and X-Content-Type-Options HTTP headers to enhance security.
  3. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  4. Provide a terms of service page to clarify user rights and obligations.
  5. Investigate and resolve the lack of WHOIS data to improve domain trustworthiness.

Contact details published on the site

Addresses
Legal name
ARSY line, s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ARSY line, s.r.o.
Description
Pronájem webových stránek pro školy a školky bez vstupní investice. Moderní grafické zpracování, vlastní administrace vyvinutá pro ZŠ a MŠ.
Key services
Websites for primary schools, Websites for kindergartens, Content management system tailored for schools, Integration with school meal systems (STRAVA.CZ), Event calendar with Google integration, Photo galleries and news modules
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 3.6.0, Google Tag Manager, Google Analytics (gtag.js), Facebook Pixel, Drip marketing automation, Smartlook session recording, Owl Carousel, Select2, Swipebox, Nette AJAX, Custom ARSY line scripts
Frameworks
Nette Framework (inferred from nette.ajax.min.js)
Platforms
Custom CMS platform
Performance
moderate
Mobile
good
Accessibility
excellent
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent-based cookie management
  • No exposed sensitive data in HTML
  • Use of CAPTCHA on forms
  • Security storage granted in consent script

Analytics and tracking

Services
Google Analytics, Facebook Pixel, Drip, Smartlook
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads (AW-629687648)
Tracking pixels
Facebook Pixel, Drip, Smartlook, Leady
Marketing tools
Drip marketing automation, Smartlook session recording
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. WHOIS data is unavailable, which limits domain trust assessment.
  3. Strong GDPR and cookie compliance with explicit consent mechanisms.
  4. Multiple customer testimonials and clear contact info enhance trust.
  5. Use of multiple third-party marketing and analytics tools with consent.
  6. No explicit security or incident response policies published.
  7. No terms of service page found.
  8. Website targets Czech educational institutions with localized content.
Technical notes

Notes

The website uses a modern and diverse technology stack including jQuery, Google Tag Manager, Facebook Pixel, Drip marketing automation, Smartlook session recording, and a custom CMS built likely on the Nette Framework. The site is mobile optimized and accessible, with good SEO metadata and structured data (JSON-LD). Performance is moderate with asynchronous loading of scripts and lazy loading of images. Hosting provider details are not explicit. The site uses multiple third-party services for analytics and marketing, all managed with user consent. Technical debt appears low, but security headers could be improved. The site is well maintained with recent content and active blog updates, indicating ongoing technical support and development.
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. 63/100Medium24 findingsView report
Reviews of this site

Share your experience with webproskoly.cz. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review webproskoly.cz.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.