Seibert Group GmbH · Technology · Germany
Medium risk. 4 critical or high findings in Security headers and SSL/TLS.
Seibert Group GmbH is a technology consulting company specializing in agile scaling, modern work environments, and IT service management (ITSM). They provide a comprehensive suite of services including Atlassian Cloud solutions, Jira and Confluence consulting, SAFe agile scaling, Google collaboration tools, and professional training and advisory services. Positioned as an expert in the German-speaking market, the company targets businesses seeking to optimize collaboration and agile transformation. The website reflects a medium-sized enterprise founded in 2021, with a clear and professional digital presence. Technically, the website is built on WordPress using Elementor and integrates modern web technologies such as FontAwesome and jQuery. It employs HubSpot for marketing and analytics, and Borlabs Cookie for GDPR-compliant cookie consent management. The site demonstrates good mobile optimization and SEO practices, though accessibility features are basic. Performance is moderate, with room for improvement in technical modernization and security hardening. From a security perspective, the site uses HTTPS and has domain transfer protections in place. However, DNSSEC is not enabled, and no explicit security headers or published security policies were found. There is no visible incident response or vulnerability disclosure information, which could be improved to enhance trust and compliance. The WHOIS data is transparent and consistent with the business identity, supporting a high legitimacy score. Overall, the website is professional, trustworthy, and business-focused, with moderate security and privacy compliance maturity. Strategic improvements in security policies, DNS security, and privacy documentation would further strengthen their posture.
Scanned
NIS2 Art. 21(2)
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.
4 findings rated critical or high. Fix these first.
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.
Forces HTTPS connections
What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"
Controls resources the browser is allowed to load
What to do: Implement a Content-Security-Policy appropriate for your application
TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.
Server supports weak protocols: TLSv1.1
What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions
SSL certificate uses 256-bit key, which is considered weak
What to do: Use at least 2048-bit RSA or 256-bit ECC key
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Each check with its score, findings and the evidence it collected.
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
Not counted
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.
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
Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.
Leaked records that mention seibert-media.net, from OffSeq Breach.
6 subdomains affected
See the 10 newest leaked credentials
A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for seibert-media.net.
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Breach keeps ingesting new leaks, so these numbers can grow between scans.
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Automated reading of the public site. Ratings are indicative.
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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