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Security report for thalia.at

Thalia Bücher GmbH · Retail · Austria

Medium risk. 5 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

73/100

Risk levelMedium

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

Thalia.at is a leading Austrian online bookstore and retail platform offering a wide range of books, eBooks, toys, and stationery products. The website serves a broad audience of readers and shoppers, combining physical store presence with a robust e-commerce platform. The site is well-branded, professionally designed, and provides a seamless user experience with clear navigation and mobile optimization. Technically, it employs modern JavaScript frameworks, consent management via Usercentrics, and integrates Google Tag Manager and Sentry for analytics and error tracking. Security is strong with HTTPS, security headers, and CAPTCHA protections on login forms. Privacy compliance is evident through comprehensive privacy and cookie policies with consent mechanisms. However, WHOIS data is unavailable due to privacy protection, which is common for large retail businesses. Overall, the site demonstrates high professionalism, trustworthiness, and technical maturity.

Scanned

This is an earlier scan of thalia.at. View the latest report

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. 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';…

  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

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

Keep watching thalia.at

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.

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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
77
Security headers
55
Email security
85
DNS health
75
Network security
100
GDPR outside view
43
Average
73

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

Thalia operates as a major retail and e-commerce bookstore in Austria, part of a larger group with sister sites in Germany and Switzerland. Its business model focuses on multi-channel sales combining online and physical stores, supported by loyalty programs like Bonuscard. The company targets general consumers interested in books and related products, leveraging personalized recommendations and promotions. The website's integration of affiliate and marketing tools indicates a mature digital marketing strategy. The absence of direct contact emails or phone numbers suggests a preference for contact via web forms, typical for large enterprises. The site’s strong branding and consistent user experience support its market position as a trusted retailer.

Security posture

The website exhibits a mature security posture with enforced HTTPS, modern security headers, and CAPTCHA integration to prevent automated abuse. Consent management is implemented to comply with GDPR requirements. No vulnerabilities or exposed sensitive data were detected in the analyzed content. However, the site lacks publicly available security policies or incident response contacts, which could enhance transparency and trust. The use of third-party scripts is well-managed, but continuous monitoring is recommended to mitigate supply chain risks. Overall, the security measures align well with industry best practices for e-commerce platforms.

Recommendations

  1. Publish a dedicated security policy and incident response contact information to improve transparency.
  2. Implement and publish a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Provide clear Data Protection Officer contact details to enhance GDPR compliance visibility.
  4. Regularly audit and update third-party scripts and dependencies to minimize security risks.
  5. Enhance data retention policy disclosures and user privacy information for greater user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Thalia Bücher GmbH
Description
Bücher, eBooks, Filme und Spiele im Thalia-Onlineshop online bestellen. Lieferung nach Hause oder in die Thalia-Buchhandlung vor Ort.
Key services
Online book sales, eBook sales, Physical bookstore locations, Toy and stationery sales, Bonuscard loyalty program
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript ES modules, Usercentrics CMP, Google Tag Manager, Cloudflare Turnstile CAPTCHA, Sentry error tracking, Webpack bundling
Frameworks
Custom CMS components, Usercentrics consent framework
Platforms
Web desktop and mobile
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of CAPTCHA for login
  • Consent management for cookies
  • No exposed sensitive data in HTML
  • Secure login form with CSRF token

Analytics and tracking

Services
Google Analytics, Sentry
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Usercentrics, Cookiemonster
Marketing tools
Usercentrics CMP
Transparency
good

Site quality

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

Key observations

  1. Website is a professional e-commerce platform for books and related products.
  2. Strong use of modern web technologies and consent management.
  3. No signs of malicious or suspicious content.
  4. No direct contact emails or phone numbers found in the main HTML; contact via forms.
  5. WHOIS data is unavailable due to privacy restrictions.
  6. Good SEO and accessibility practices observed.
  7. Security posture is strong with HTTPS and security headers.
  8. No explicit security or incident response policies published.
Technical notes

Notes

The website uses a custom or proprietary CMS with modular JavaScript components loaded via ES modules and nomodule fallbacks for compatibility. It leverages Usercentrics for consent management and integrates Google Tag Manager and Sentry for analytics and error monitoring. The presence of Cloudflare Turnstile CAPTCHA indicates use of Cloudflare services for security and performance. The site is well-optimized for mobile devices and accessibility, with smooth navigation and SEO-friendly meta tags. Performance appears fast with efficient resource loading. Opportunities exist to further modernize by adopting standardized CMS platforms or headless CMS architectures for scalability and maintainability.
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. 73/100 +25Medium28 findingsView report
  2. 48/100High23 findingsView report
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