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Security report for techlib.cz

Národní technická knihovna · Education · Czech Republic

Medium risk. 5 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

51/100

Risk levelMedium

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

The Czech National Library of Technology (Národní technická knihovna) is a prominent national institution providing extensive technical and scientific resources to researchers, students, and the general public. It offers a broad range of services including access to print and electronic collections, interlibrary loans, research support, and educational workshops. The website reflects a well-established non-profit educational entity with a strong market position in the Czech Republic. Technically, the site employs modern web technologies such as Bootstrap and jQuery, with responsive design and moderate performance. Security posture is good with HTTPS and cookie consent mechanisms in place, though security headers are absent and WHOIS data is missing, which slightly impacts trust. Overall, the site is professional, trustworthy, and compliant with privacy regulations.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 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

5 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  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 techlib.cz

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.

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  • 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
0
Security headers
30
Email security
60
DNS health
70
Network security
100
GDPR outside view
43
Average
51

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 library operates as a non-profit educational entity focused on technology and research sectors. Its business model centers on providing access to knowledge resources and supporting academic activities. The presence of multiple partner domains and integrated services indicates a collaborative ecosystem. The website targets academic and research communities primarily but also serves the general public interested in technology. The lack of WHOIS data is a notable anomaly but does not detract significantly from the institution's credibility given its official nature and comprehensive service offerings.

Security posture

The website demonstrates a mature security posture with enforced HTTPS and a GDPR-compliant cookie consent banner. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options is a gap that should be addressed to enhance protection against common web attacks. No vulnerabilities or exposed sensitive data were detected in the HTML content. Incident response and security policy information are not publicly available, which could be improved to increase transparency and readiness. Overall, the security level is good but can be strengthened with additional headers and documented policies.

Recommendations

  1. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to improve defense-in-depth.
  2. Investigate and resolve the absence of WHOIS registration data to ensure domain legitimacy and reduce risk.
  3. Publish a clear security policy and incident response contact information to enhance transparency and trust.
  4. Regularly audit third-party scripts and analytics tools to mitigate potential vulnerabilities.
  5. Maintain and update privacy and cookie policies to remain compliant with evolving regulations.

Contact details published on the site

Addresses
Legal name
Národní technická knihovna
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Národní technická knihovna
Description
National Library of Technology providing access to technical and scientific resources, supporting education and research.
Key services
Print and electronic collections, eResources access, Interlibrary loan, Research support, Conference services, Educational workshops
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap, Matomo Analytics, Modernizr, Responsive design
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with opt-in
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is rich, relevant, and targeted at education and research audiences.
  3. No WHOIS data available, which is unusual and may require further investigation.
  4. Privacy and cookie policies are present and GDPR compliant.
  5. Secure HTTPS connection with cookie consent implemented.
  6. No security headers detected in HTML source; improvement recommended.
  7. Multiple external trusted domains linked, including partner and resource sites.
  8. No signs of adult or questionable content.
  9. No WAF or blocking detected; site fully accessible.
Technical notes

Notes

The website uses a modern technology stack with Bootstrap for responsive design and jQuery for interactivity. Matomo analytics is used for user tracking with privacy considerations. The site is mobile optimized and accessible with good SEO practices. Performance is moderate, likely due to multiple external resources and media content. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. Technical debt appears low, but adding security headers and improving WHOIS data transparency would reduce risk and improve trust.
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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