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Security report for immobilie1.de

immobilie1 · Real Estate · Germany

Medium risk. 1 critical or high finding in SSL/TLS.

Security score

73/100

Risk levelMedium

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

immobilie1.de is a German real estate platform offering nationwide property search services including apartments, houses, commercial real estate for rent and purchase. The website targets property seekers and providers in Germany, providing a user-friendly interface with search and provider lookup features, as well as real estate guides. The platform uses modern web technologies including Laravel Livewire, Tailwind CSS, and integrates Cookiebot for GDPR-compliant cookie consent and Google Tag Manager for analytics. Security posture is solid with HTTPS and CSRF protections, though some security headers could be improved. Privacy compliance is well addressed with a comprehensive privacy policy and cookie consent mechanism. However, no terms of service or explicit security policies were found. Overall, the site is professional, trustworthy, and well-optimized for users.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 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

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.

    • 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 immobilie1.de

This scan found 16 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
77
Security headers
85
Email security
85
DNS health
70
Network security
40
GDPR outside view
83
Average
73

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 immobilie1.de, from OffSeq Breach.

No leaked records found

Breach holds no records for immobilie1.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

immobilie1.de operates in the German real estate sector as an essential online marketplace connecting buyers, renters, and real estate providers. Its business model revolves around facilitating property searches and listings, supported by advertising and analytics tools such as Google AdSense and Google Analytics. The platform serves a broad audience of property seekers across Germany, offering various property types and detailed guides. The use of a backoffice subdomain indicates operational management capabilities. The company maintains consistent branding and compliance with GDPR, enhancing its market credibility. No parent or subsidiary companies were identified, suggesting an independent medium-sized operation.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, CSRF token usage, and a robust cookie consent mechanism. Integration of Sentry indicates active error monitoring. However, the absence of explicit security headers like Content-Security-Policy and X-Frame-Options represents an area for improvement. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The lack of a published security policy or incident response contact limits transparency in security governance. Overall, the security maturity is good but could benefit from formalized policies and enhanced header configurations.

Recommendations

  1. Implement and enforce security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Publish a clear security policy and incident response contact information to improve transparency and trust.
  3. Add a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  4. Enhance accessibility features to improve compliance and user experience for all users.
  5. Consider adding a terms of service page to clarify user rights and obligations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
immobilie1
Description
Wohnungen, Häuser, Gewerbe-Immobilien zur Miete und Kauf deutschlandweit | immobilie1 - Immobilien schneller finden ➤ Immobilien für jedes Budget entdecken!
Key services
Immobiliensuche (property search), Anbietersuche (provider search), Ratgeber (real estate guides), Immobilien anbieten (property listing)
Content quality
good
Branding
consistent

Technology

Stack
JavaScript ES Modules, Tailwind CSS, Livewire (Laravel), Cookiebot, Google Tag Manager, Sentry (error tracking)
Frameworks
Laravel Livewire
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • CSRF token present in meta tags
  • Cookie consent with opt-in/out
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google AdSense
Tracking pixels
Cookiebot tracking pixel
Marketing tools
Cookiebot
Transparency
good

Site quality

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

Key observations

  1. Website uses HTTPS with valid SSL
  2. Cookie consent implemented with detailed cookie categories
  3. No explicit contact emails or phone numbers found on homepage
  4. No terms of service page detected
  5. Uses modern frontend technologies and frameworks
  6. Includes Google Tag Manager and Sentry for analytics and error tracking
  7. No security.txt or vulnerability disclosure found
  8. No explicit security or incident response policies published
Technical notes

Notes

The website is built on a modern technology stack featuring Laravel Livewire for reactive components, Tailwind CSS for styling, and JavaScript ES modules for modular scripting. It uses Cookiebot for cookie management and Google Tag Manager for analytics integration. The site is mobile-optimized with responsive design and includes performance optimizations such as preloading key assets. Hosting details are not explicit but DNS points to domaincontrol.com, likely GoDaddy. The site shows moderate performance and good SEO practices with proper meta tags and Open Graph data. Technical debt appears low, but opportunities exist to enhance security headers and accessibility compliance.
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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