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Security report for dorotheum.com

Dorotheum GmbH & Co KG · Retail · Austria

Medium risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

56/100

Risk levelMedium

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

Dorotheum GmbH & Co KG operates the largest auction house in Central Europe, specializing in art, antiques, jewelry, and collectibles with over 300 years of experience. The company holds numerous auctions annually, both online and in physical salerooms, and offers additional services such as private sales and expert consultations. The website is professionally designed, content-rich, and targets collectors, buyers, and sellers in the art and luxury goods market primarily in Austria and surrounding regions. Technically, the site is built on TYPO3 CMS with modern frontend libraries and integrates analytics and marketing tools like Google Tag Manager and Facebook Pixel. However, the absence of a valid SSL certificate and lack of security headers represent significant security weaknesses. Privacy and cookie policies are comprehensive and GDPR compliant, with active consent mechanisms. Overall, the site demonstrates strong business credibility but requires urgent improvements in security posture to protect user data and enhance trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
18/ 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

4 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

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

    • 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

    • 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

  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

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

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

Keep watching dorotheum.com

This scan found 13 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

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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
85
Email security
50
DNS health
85
Network security
100
GDPR outside view
18
Average
56

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

Dorotheum holds a dominant market position as a leading auction house in Central Europe, leveraging its long heritage and expert network. Its diversified business model includes traditional auctions, online auctions, immediate purchase options, and specialized sales channels such as jewelry and vehicles. The company targets affluent collectors and art enthusiasts, supported by a strong digital presence and multilingual website. Subsidiaries like Dorotheum Juwelier and Dorotheum Pfand extend its service offerings. The integration of marketing and analytics tools indicates a mature approach to customer engagement and data-driven marketing. The company maintains clear contact channels and legal compliance, reinforcing its professional image.

Security posture

The website currently lacks a valid SSL certificate, resulting in unencrypted HTTP traffic, which is a critical security flaw exposing users to data interception risks. No security headers such as HSTS, Content-Security-Policy, or X-Frame-Options are present, increasing vulnerability to common web attacks. While no known vulnerabilities or malware were detected, the absence of HTTPS and security best practices significantly lowers the security maturity level. Privacy policies and cookie consent mechanisms are well implemented, indicating good compliance with data protection regulations. Incident response and security policy documentation are not publicly available, suggesting potential gaps in transparency and preparedness.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate to enable HTTPS across the entire site immediately.
  2. Implement security headers including HSTS with preload, Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Enable OCSP stapling and session resumption to improve SSL performance and security.
  4. Conduct regular security audits and update third-party libraries to mitigate vulnerabilities.
  5. Publish clear security and incident response policies to enhance transparency and trust.

Contact details published on the site

Addresses
Legal name
Dorotheum GmbH & Co KG
Technical notes

Notes

The website is powered by TYPO3 CMS, a robust open-source content management system, and uses modern frontend technologies such as jQuery UI and Splide.js for interactive elements. Google Tag Manager and Google Analytics are integrated for marketing and performance tracking. The site is multilingual and mobile-optimized with good accessibility features. However, the page load time is slow (14 seconds) with a large page size (~600KB) and many resources (77), indicating potential optimization opportunities. Hosting details are not explicit but DNS records suggest use of rcode0.net nameservers. The lack of HTTPS and security headers is a major technical risk. SEO and metadata are well implemented with Open Graph tags and canonical links.
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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