STIEBEL ELTRON Vietnam is a subsidiary of the well-established German company STIEBEL ELTRON GmbH & Co. KG, specializing in innovative and energy-efficient heating and water solutions. The website reflects a mature digital presence with comprehensive product offerings in renewables, domestic hot water, and water filtration, targeting both consumers and businesses in Vietnam. The company leverages a modern technical infrastructure, likely based on Adobe Experience Manager, with integrated analytics and cookie consent mechanisms ensuring compliance with privacy regulations. Security posture is solid with HTTPS enforcement and privacy-conscious analytics, though some security headers could be improved. Overall, the website demonstrates high professionalism, trustworthiness, and alignment with the company's global brand.
Scanned ·
NIS2 and GDPR posture
GDPR outside view
53/ 100 · Medium
Checks completed
7of 7
NIS2 Art. 21(2)
a(a) Risk analysis and security policies: Not visible from outside
b(b) Incident handling: One indicator
c(c) Business continuity, backups and crisis management: Not visible from outside
d(d) Supply chain security: Not visible from outside
e(e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
f(f) Assessing the effectiveness of security measures: Not visible from outside
g(g) Cyber hygiene and security training: Not visible from outside
h(h) Cryptography and encryption: Partly checked
i(i) HR security, access control and asset management: One indicator
j(j) Multi-factor authentication and secured communications: Not visible from outside
Partly checked
One indicator
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.
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"
This scan found 15 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.
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
90
Security headers
70
Email security
85
DNS health
85
Network security
20
GDPR outside view
53
Average
67
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
Breach exposure
Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.
Dark web exposure
Add-on
Leaked records that mention stiebel-eltron.vn, from OffSeq Breach.
No leaked records found
Breach holds no records for stiebel-eltron.vn right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Business context
Business profile
The company holds a strong market position as a global leader in energy-efficient heating solutions, supported by a broad international presence and multiple subsidiaries. Their business model focuses on manufacturing and distributing high-quality products that emphasize sustainability and energy savings. The website content and structure indicate a focus on educating and converting customers through detailed product information and local contact options. The presence of multiple localized domains suggests a well-established global network. No direct revenue streams or e-commerce functionalities are evident, indicating a B2B/B2C sales approach likely supported by local distributors or sales teams.
Security posture
The website employs HTTPS and integrates cookie consent tools compliant with GDPR, reflecting a good baseline security and privacy posture. Analytics are implemented with anonymization options, reducing privacy risks. However, the absence of explicit security headers like Content-Security-Policy and X-Frame-Options represents an area for improvement. No public security policies or incident response contacts are provided, which could enhance transparency and trust. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security maturity is good but could benefit from additional hardening and disclosure.
Recommendations
Implement and publish a Content-Security-Policy header to mitigate XSS risks.
Add X-Frame-Options header to prevent clickjacking attacks.
Publish a dedicated security policy and incident response contact information.
Consider creating a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
Enhance accessibility features to improve compliance and user experience for all users.
Site observations
Automated reading of the public site. Ratings are indicative.
Business
Company
STIEBEL ELTRON GmbH & Co. KG
Description
STIEBEL ELTRON is an internationally recognized manufacturer of innovative and high quality space and water heating systems with 90 years of experience. They provide energy saving products focusing on renewables, hot water, air conditioning and central heating systems.
Key services
Renewables (heat pumps), Domestic hot water solutions, Water filters, Room heating
Content quality
excellent
Branding
consistent
Technology
Stack
JavaScript, RequireJS, Piwik PRO analytics, Modernizr
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good
Security
Observed score
85/100
Good practices seen
HTTPS enforced
Cookie consent mechanism implemented
No exposed sensitive data in HTML
Use of analytics with anonymization options
Analytics and tracking
Services
Piwik PRO
Tracking level
moderate
Privacy practices
good
Advertising
Tracking pixels
Piwik PRO
Marketing tools
Piwik PRO Tag Manager
Transparency
good
Site quality
Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high
Key observations
Website is professionally designed and well-structured.
Comprehensive privacy and cookie policies with consent mechanisms are implemented.
Contact information is clearly provided with phone and contact form.
No terms of service or explicit security policy pages found.
No vulnerability disclosure or security.txt file detected.
Use of modern JavaScript libraries and analytics tools with privacy considerations.
No signs of suspicious or malicious content.
Strong branding consistency and trust signals present.
Technical notes
Notes
The website uses a modern JavaScript stack including RequireJS and Modernizr, with analytics powered by Piwik PRO. The CMS appears to be Adobe Experience Manager or a similar JCR-based system, supporting a scalable and modular content architecture. Performance is moderate with lazy loading images and responsive design for mobile optimization. SEO is well addressed with meta tags and Open Graph data. Some technical debt is suggested by missing security headers and basic accessibility features. Hosting provider details are not explicit, but the infrastructure supports a professional corporate website. Overall, the technical implementation is robust with room for security and accessibility enhancements.
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.
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