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Security report for rendity.com

Rendity GmbH · Real Estate · 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

Rendity GmbH operates a leading European online platform for real estate investments, enabling users to invest in rental properties and development projects starting from 100 €. The company emphasizes investor protection through regulatory compliance with electronic securities law, PCI DSS, and PSD2 standards, and offers deposit protection up to 100,000 €. The platform is technologically modern, built on Next.js and served via Cloudflare CDN, with a strong focus on user experience and mobile optimization. However, the website suffers from a critical security issue: the SSL certificate is invalid and no TLS protocols are enabled, severely impacting the security posture. Privacy and cookie policies are comprehensive and GDPR compliant, and contact information is clearly provided. The domain registration data aligns well with the company's business claims, supporting legitimacy and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
18/ 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

      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 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';…

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

Keep watching rendity.com

This scan found 19 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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  • 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
0
Security headers
20
Email security
50
DNS health
80
Network security
100
GDPR outside view
18
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

Rendity positions itself as the number one real estate investment platform in Europe, targeting individual and institutional investors seeking diversified real estate exposure with low entry thresholds. Its business model centers on crowdinvesting in rental and development properties, offering monthly rental income and capital appreciation. The company leverages partnerships with payment processors and compliance providers to ensure regulatory adherence and smooth transaction processing. Media presence and customer trust indicators reinforce its market position. The platform also offers savings plans and bonds, expanding its product portfolio. Growth potential is supported by a mature domain and consistent branding.

Security posture

The current security posture is weak due to the absence of a valid SSL certificate and disabled TLS protocols, exposing users to potential data interception and man-in-the-middle attacks. While the company claims PCI DSS and PSD2 compliance and deposit protection, the website's technical security implementation is lacking. No incident response or vulnerability disclosure policies are publicly available, which could hinder timely handling of security incidents. Security headers are partially implemented but critical enhancements like HSTS and OCSP stapling are missing. Immediate remediation of SSL/TLS issues is essential to protect user data and maintain trust.

Recommendations

  1. Urgently fix the SSL certificate to ensure HTTPS is properly enabled and trusted by browsers.
  2. Enable and configure modern TLS protocols (TLS 1.2 and TLS 1.3) to secure data in transit.
  3. Implement HTTP Strict Transport Security (HSTS) with includeSubDomains and preload directives.
  4. Establish and publish a vulnerability disclosure policy and incident response contact channels.
  5. Regularly audit and update security headers and ensure session resumption mechanisms are enabled to improve security and performance.
Technical notes

Notes

The website is built using Next.js, a modern React framework, and leverages Cloudflare for CDN and security services. Images are hosted on Cloudinary, optimizing media delivery. The site is mobile optimized and SEO friendly with proper meta tags and structured data (JSON-LD). However, performance metrics indicate slow loading times, possibly due to missing resource counts or measurement issues. The absence of a valid SSL certificate and disabled TLS protocols represent significant technical debt and risk. The platform uses modern JavaScript bundles and fonts, indicating a contemporary frontend stack. Hosting via Cloudflare provides scalability and DDoS protection but requires proper SSL configuration to be effective.
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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