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Security report for retrofest.cz

Silicon Hill · Education · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

45/100

Risk levelHigh

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

RetroFest.cz is a small-scale, niche event website dedicated to a 2015 retro computing conference organized by students of the Czech Technical University in Prague under the Silicon Hill club. The site serves primarily as an informational portal for event details, partner acknowledgments, and archival content such as lecture recordings. The business model revolves around community engagement and educational event hosting within the technology and education sectors. The website's market position is limited to a specialized audience interested in retro hardware and software history. Technically, the website is a simple static HTML site with basic CSS and JavaScript, including Google Analytics for visitor tracking. The hosting is provided by ACTIVE 24, and the domain is registered consistently with the academic affiliation. However, the site lacks modern web standards such as HTTPS, security headers, and mobile optimization, which limits its technical maturity and security posture. From a security perspective, the absence of HTTPS and security headers, along with loading external scripts over HTTP, exposes the site to potential man-in-the-middle attacks and data interception risks. No privacy or cookie policies are present, which is a compliance gap under GDPR. The site does not collect user data via forms, reducing some risk, but the use of Google Analytics without consent mechanisms is a privacy concern. Overall, the website is functional for its intended purpose but requires significant improvements in security, privacy compliance, and technical modernization to enhance trustworthiness and user safety. Strategic recommendations include implementing HTTPS, adding privacy and cookie policies, improving mobile responsiveness, and adopting security best practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

9 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

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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';…

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

Keep watching retrofest.cz

This scan found 28 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.

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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
62
Security headers
25
Email security
60
DNS health
75
Network security
40
GDPR outside view
10
Average
45

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 website represents a student-organized event affiliated with the Czech Technical University, targeting retro computing enthusiasts and the academic community. Its competitive advantage lies in its niche focus and university backing, which lends credibility. The business model is event-driven, relying on partnerships with related clubs and organizations. Revenue streams are not explicit but likely limited to sponsorships and university grants. The partnership ecosystem includes several academic and retro computing clubs, enhancing community reach. Growth indicators are minimal given the static nature of the site and event frequency. Strategic observations suggest potential for expanding digital presence and improving engagement through modern web technologies.

Security posture

The current security maturity level is low due to lack of HTTPS, missing security headers, and absence of privacy and cookie policies. Vulnerabilities include potential interception of data via HTTP, privacy compliance gaps, and exposure to tracking without user consent. Incident response readiness is not evident, with no security or abuse contacts provided. The security culture appears informal, consistent with a student-run event. Compliance with GDPR is incomplete, posing legal risks. Business impact of these gaps is moderate given the limited data collection but could affect reputation and user trust.

Recommendations

  1. Implement HTTPS across the entire website with a valid SSL certificate to secure data transmission.
  2. Develop and publish comprehensive privacy and cookie policies to comply with GDPR and inform users.
  3. Serve all external scripts and resources over HTTPS to prevent mixed content issues and improve security.
  4. Add standard security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  5. Enhance mobile optimization and accessibility to improve user experience and broaden audience reach.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Silicon Hill
Description
RetroFest 2015 is a one-day event focused on the history of hardware and software of all kinds, organized by students of the Czech Technical University in Prague (ČVUT) active in the Silicon Hill club, Student Union ČVUT.
Key services
Conference event, Historical hardware/software demonstrations, Educational lectures
Content quality
basic
Branding
moderate

Technology

Stack
HTML, CSS, JavaScript, Google Analytics
Performance
moderate
Mobile
poor
Accessibility
basic
SEO
basic

Security

Observed score
30/100
Good practices seen
  • No forms detected to collect sensitive data
  • No exposed credentials in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
good
Navigation
good
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website is a static informational site for a 2015 retro computing event.
  2. No HTTPS detected; all external resources loaded over HTTP.
  3. No privacy, cookie, or terms of service policies found.
  4. No forms present; minimal data collection.
  5. Social media presence on Twitter, Facebook, and Google+ (now deprecated).
  6. Use of Google Analytics for visitor tracking without visible consent mechanism.
  7. Partner logos indicate collaboration with academic and retro computing communities.
  8. Basic design and navigation with limited modern features.
  9. No security headers or advanced security configurations detected.
Technical notes

Notes

The website is built using basic HTML, CSS, and JavaScript, with Google Analytics integrated for tracking. It lacks a CMS and modern frameworks, indicating a static site approach. Hosting is provided by ACTIVE 24, consistent with the domain registration. Performance is moderate but could be improved with HTTPS and optimized resource loading. The site is not mobile responsive and has limited accessibility features. SEO optimization is basic, with minimal meta tags and no structured data. Technical debt is low due to simplicity but modernization is recommended to meet current web standards and security requirements.
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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