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Security report for siltronic.com

Siltronic AG · Technology · Germany

Partial score · DNS & email only

44/100

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

Siltronic AG is a globally recognized leader in the manufacturing of hyperpure silicon wafers, serving major semiconductor manufacturers worldwide. The company operates production sites across Asia, Europe, and the USA, emphasizing quality, precision, and innovation. Their business model focuses on supplying essential silicon wafers for the semiconductor industry, positioning them as a key player in technology manufacturing. The website reflects a professional corporate presence with comprehensive investor relations and career information, targeting industry professionals, investors, and potential employees. Technically, the website is built on TYPO3 CMS and hosted via Amazon CloudFront, integrating modern tools such as Google Tag Manager and FriendlyCaptcha. The site is well-structured, mobile-optimized, and includes a GDPR-compliant cookie consent mechanism. However, the absence of a valid SSL certificate critically undermines the security posture, exposing users to risks and limiting the effectiveness of security headers. From a security perspective, while several best practices are implemented, the lack of HTTPS and TLS support is a major vulnerability. No incident response or vulnerability disclosure information is provided, which could be improved to enhance trust and readiness. Overall, the site is professional and trustworthy in content but requires urgent security improvements to protect visitors and maintain compliance. Strategically, Siltronic should prioritize obtaining a valid SSL certificate and enabling modern TLS protocols to secure communications. Enhancing transparency around incident response and vulnerability disclosure would further strengthen their security culture and stakeholder confidence.

Scanned

3 of 7 checks could not complete. The site may be unreachable or blocking automated scans, so the results below cover only what could be checked. Try a rescan later.

NIS2 and GDPR posture

NIS2 outside view
Not assessed
GDPR outside view
Not assessed

Both readouts depend on the site's pages, which could not be loaded in this scan.

Priority findings

1 finding rated critical or high. Fix these first.

  1. 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

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Keep watching siltronic.com

This scan found 5 issues across 4 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
Email security
50
DNS health
85
Network security
40
Average
44

Not counted

  • Security headers: did not complete in this scan.
  • GDPR outside view: did not complete in this scan.
  • 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

Siltronic AG holds a strong market position as a leading manufacturer of silicon wafers, a critical component in semiconductor production. Their competitive advantage lies in their global manufacturing footprint and long-standing industry partnerships. The business model is B2B manufacturing with a focus on high-quality, specialized wafer products. Revenue streams are primarily from wafer sales to semiconductor companies. The target customers include semiconductor manufacturers and technology firms requiring advanced silicon wafers. Growth indicators include sustained investor relations activity and global site expansion. The partnership ecosystem includes technology providers and service partners such as b-ite.com and promeas GmbH. The company demonstrates a commitment to sustainability and compliance, which supports long-term operational stability and market reputation.

Security posture

The current security maturity level is moderate but compromised by critical gaps. The website employs several security headers and a content security policy, indicating awareness of security best practices. However, the absence of a valid SSL certificate and disabled TLS protocols represent significant vulnerabilities that expose users to interception and downgrade attacks. No evidence of incident response contact channels or vulnerability disclosure programs was found, indicating potential gaps in security governance and transparency. Data protection practices are supported by a GDPR-compliant privacy policy and cookie consent mechanism. The security culture could be improved by publishing incident response procedures and enabling secure communications. Overall, the security posture requires urgent remediation to meet industry standards and regulatory compliance.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate immediately to enable HTTPS and protect user data.
  2. Enable and configure modern TLS protocols (TLS 1.2 and TLS 1.3) and strong cipher suites to secure communications.
  3. Publish clear incident response and vulnerability disclosure information to improve transparency and stakeholder trust.
  4. Enhance security culture by regularly auditing security configurations and training staff on compliance requirements.
  5. Implement OCSP stapling and session resumption to improve SSL performance and security.
Technical notes

Notes

The website is built on the TYPO3 CMS platform, leveraging Apache server infrastructure and Amazon CloudFront CDN for content delivery. Integration with Google Tag Manager and Google Analytics supports marketing and analytics needs. The site is mobile-optimized with responsive design and includes accessibility features, though these could be further enhanced. Performance data is unavailable, but the use of CDN suggests moderate to good loading speeds. The technical stack is modern but suffers from critical SSL/TLS misconfiguration, which poses operational risks. There is an opportunity to modernize security infrastructure and improve technical SEO and accessibility compliance to enhance user experience and search engine rankings.
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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