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Security report for intewa.com

INTEWA GmbH · Energy · Germany

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

57/100

Risk levelMedium

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

INTEWA GmbH is an established German company specializing in water treatment, rainwater management, and water reuse solutions for both commercial and residential sectors. With over 30 years of experience and more than 115,000 projects worldwide, the company offers innovative products such as the AQUALOOP water reuse systems, DRAINMAX tunnels, and system separation devices compliant with DIN standards. The website reflects a mature digital presence built on TYPO3 CMS and Bootstrap, providing comprehensive product information and references. However, the absence of WHOIS registration data raises concerns about domain legitimacy, although the business content and certifications support its authenticity. Security posture is moderate with HTTPS usage but lacks explicit security headers and privacy compliance documentation. Overall, the site is professional, well-structured, and safe for general audiences.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 100 · Low
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

6 findings rated critical or high. Fix these first.

  1. 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  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 intewa.com

This scan found 24 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.

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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
72
Security headers
25
Email security
85
DNS health
60
Network security
20
GDPR outside view
80
Average
57

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

INTEWA GmbH operates in the energy and environmental technology sectors, focusing on sustainable water management solutions. Their business model revolves around product development, system integration, and international distribution. The company targets municipalities, commercial enterprises, and private homeowners seeking water conservation and treatment technologies. Strategic partnerships with related domains enhance their ecosystem. The company demonstrates strong market positioning through certifications and extensive project experience. Growth indicators include a broad product portfolio and digital tools like I-CONNECT for monitoring. However, the lack of transparent domain registration and privacy policies could impact trust with new customers.

Security posture

The website employs HTTPS, indicating basic encryption standards. However, no security headers such as Content Security Policy or HSTS were detected, which could expose the site to certain web-based attacks. No vulnerabilities or exposed sensitive data were found in the HTML content. The absence of incident response contacts and security policies suggests limited preparedness for security incidents. Compliance with GDPR is not clearly demonstrated due to missing privacy and cookie policies. Overall, the security maturity is moderate but could be improved by implementing best practices and transparency measures.

Recommendations

  1. Implement comprehensive privacy and cookie policies to ensure GDPR compliance and user trust.
  2. Add security headers like CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  3. Publish clear contact information including incident response and data protection officer contacts.
  4. Verify and update WHOIS domain registration information to improve legitimacy and trustworthiness.
  5. Conduct regular security audits and vulnerability assessments to maintain a strong security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
INTEWA GmbH
Description
Die Kerngebiete der INTEWA GmbH liegen in der Wasseraufbereitung von Regen- und Grauwasser sowie im Regenwasser-Management. Als international agierendes Unternehmen entwickeln und vertreiben wir seit über 30 Jahren innovative Produkte und Systeme.
Key services
Wasseraufbereitung (Water treatment), Wasserwiederverwendung (Water reuse), Regenwasser-Management (Rainwater management), Löschwassersysteme (Fire water systems), Systemtrennung (System separation)
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, Bootstrap 5, jQuery, Owl Carousel, Glightbox, SmartMenus
Frameworks
TYPO3 CMS, Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
70/100
Good practices seen
  • Use of HTTPS (implied by canonical URL https://)
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content and navigation.
  2. No explicit privacy, cookie, or terms of service pages found in provided HTML.
  3. No direct contact emails or phone numbers found in the HTML content.
  4. Multiple external partner domains linked.
  5. Use of modern CMS TYPO3 and Bootstrap framework.
  6. No obvious security headers or incident response info present.
  7. WHOIS data missing, which is a concern for domain legitimacy.
  8. Content is business-focused, professional, and safe.
Technical notes

Notes

The website is built on TYPO3 CMS with Bootstrap 5 framework, leveraging modern web technologies such as Owl Carousel and Glightbox for interactive content. The site is mobile responsive and well-structured with semantic HTML and accessibility considerations. Performance is moderate, with potential for optimization in loading times and resource management. The absence of explicit hosting provider information limits infrastructure assessment. Technical debt appears low, but improvements in security configurations and privacy compliance are recommended to align with best practices.
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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