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Security report for durchblicker.at

durchblicker GmbH · Finance · Austria

High risk. 7 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

45/100

Risk levelHigh

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

durchblicker GmbH operates Austria's largest tariff comparison portal, specializing in consumer savings on household fixed costs such as insurance, energy, finance, and telecommunications. The platform offers a broad range of comparison calculators and personalized expert consultations, positioning itself as a trusted advisor for Austrian consumers. The website is professionally designed, mobile-optimized, and rich in relevant content, supporting a strong market presence. Technically, the site leverages modern frameworks like Next.js and React, hosted on Google Cloud infrastructure with Cloudflare DNS services. However, the security posture is notably weak due to the absence of a valid SSL certificate and lack of support for modern TLS protocols, exposing users to potential risks. Privacy compliance is well addressed with clear policies and consent mechanisms, and business credibility is reinforced by strong trust signals including eKomi ratings and industry awards. Strategic improvements in SSL/TLS implementation and DNS security would significantly enhance the overall security and trustworthiness of the platform.

Scanned

NIS2 and GDPR posture

GDPR outside view
0/ 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

7 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

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • Critical

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

  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

  3. 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 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';…

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

Keep watching durchblicker.at

This scan found 18 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

Email alerts on material changes and an exportable JSON history of every change.

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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
30
Email security
50
DNS health
90
Network security
100
GDPR outside view
0
Average
45

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

durchblicker GmbH holds a dominant position in the Austrian market for tariff comparison services, targeting consumers seeking to optimize fixed household expenses. Its business model relies on monetization through commissions from providers upon contract mediation. The company offers extensive service verticals including insurance, energy, credit, and telecommunications, supported by a comprehensive content strategy and expert consultation services. The partnership ecosystem includes affiliate programs and third-party review platforms such as eKomi, enhancing credibility. Growth indicators include a large user base and high customer satisfaction ratings. The company maintains a clear focus on transparency, independence, and customer satisfaction, which are key competitive advantages in the comparison portal industry.

Security posture

The current security maturity level of durchblicker.at is low due to critical issues such as the absence of a valid SSL certificate and disabled TLS protocols, which are fundamental for secure web communication. While security headers like HSTS are present, their effectiveness is undermined without HTTPS. No OCSP stapling or session resumption mechanisms are implemented, and DNSSEC is not enabled, reducing DNS security. There is no evidence of a published security policy or incident response contact channels, indicating gaps in formal security governance. Despite these weaknesses, no known vulnerabilities such as Heartbleed, POODLE, or FREAK were detected. The lack of HTTPS poses a significant business risk, potentially affecting user trust and compliance with data protection regulations. Immediate remediation of SSL/TLS issues is critical to improve security posture and protect user data.

Recommendations

  1. Install and maintain a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Enable and enforce modern TLS protocols (TLS 1.2 and TLS 1.3) to secure data in transit.
  3. Implement OCSP stapling and session resumption to enhance performance and security.
  4. Correct and properly configure CAA DNS records to specify authorized certificate authorities.
  5. Enable DNSSEC to protect against DNS spoofing and improve domain integrity.
  6. Publish a formal security policy and provide clear incident response contact channels (e.g., security@ or abuse@ emails).
  7. Regularly audit and update security headers and ensure all forms and inputs are secured against common web vulnerabilities.

Contact details published on the site

Addresses
Legal name
durchblicker GmbH
Technical notes

Notes

The website is built on a modern technology stack using Next.js and React, indicating a high level of digital maturity. Hosting is provided by Google Cloud Platform with Cloudflare DNS services, ensuring reliable infrastructure. The site is mobile-optimized and accessible, with good SEO practices including comprehensive meta tags and structured data (JSON-LD). Performance metrics are moderate, with room for improvement in load times and resource optimization. The use of Google Tag Manager and Google Analytics 4 reflects advanced analytics capabilities. However, the lack of HTTPS and TLS support is a critical technical deficiency that undermines overall platform security and user trust. Addressing these issues will reduce technical debt and align the platform with industry 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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