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Security report for costablancamakler.com

DA VINCI IMMOBILIEN GmbH · Real Estate · Germany

Medium risk. 4 critical or high findings in Security headers, SSL/TLS and 1 other check.

Security score

59/100

Risk levelMedium

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

The website www.costablancamakler.com represents a real estate brokerage business specializing in property sales, rentals, and management in the northern Costa Blanca region of Spain. The company behind the site is DA VINCI IMMOBILIEN GmbH, a German entity. The site targets buyers and renters interested in properties along the Costa Blanca coast, emphasizing the region's mild climate and lifestyle benefits. Technically, the website uses a modern frontend stack including jQuery, Bootstrap, and LayerSlider, with mobile optimization and moderate performance. Security posture is adequate with HTTPS enabled but lacks advanced security headers and explicit privacy or cookie policies, which are compliance gaps. The WHOIS data for the domain is missing or unavailable, raising concerns about domain registration legitimacy. Contact information is clearly presented, but no social media or security incident contacts are provided. Overall, the site is professional and content-rich but requires improvements in privacy compliance and domain legitimacy verification.

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

4 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 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. 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

  3. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

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

Keep watching costablancamakler.com

This scan found 23 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

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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
35
Email security
70
DNS health
75
Network security
20
GDPR outside view
83
Average
59

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 costablancamakler.com, from OffSeq Breach.

No leaked records found

Breach holds no records for costablancamakler.com 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

The business operates in the real estate sector, focusing on a niche geographic market (Costa Blanca, Spain) with a clear value proposition around lifestyle and property investment. The company leverages its German roots and brand DA VINCI IMMOBILIEN GmbH to build trust. The business model is commission-based brokerage and property management. The website content and navigation are well structured, targeting affluent buyers and investors seeking coastal properties. There is no evidence of extensive marketing or tracking tools, indicating a conservative digital marketing approach. The absence of WHOIS data and privacy policies suggests areas for operational strengthening, especially in compliance and domain management.

Security posture

The website enforces HTTPS, which is a fundamental security measure. However, it lacks visible security headers such as Content-Security-Policy, X-Frame-Options, and others that enhance protection against common web attacks. No vulnerabilities or exposed sensitive data were detected in the HTML content. Forms are present for login and contact but no explicit anti-CSRF or input validation mechanisms are visible. The absence of a security policy or incident response contact reduces transparency and preparedness. Overall, the security posture is moderate but could be improved with better header implementation, privacy compliance, and incident response readiness.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie consent mechanism to ensure GDPR compliance.
  2. Add security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance web security.
  3. Verify and update domain registration details to ensure WHOIS data is accurate and publicly available.
  4. Include a security incident response contact or page to improve transparency and readiness.
  5. Regularly audit third-party libraries and scripts for vulnerabilities and update them accordingly.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DA VINCI IMMOBILIEN GmbH
Description
Wir sind die Spezialisten für das Verkaufen, Vermieten oder Verwalten Ihrer Immobilie. Unsere Arbeit als Immobilienmakler beruht auf klaren Grundsätzen der Seriosität: Kompetenz und Transparenz, Ehrlichkeit und Zuverlässigkeit. Objekte befinden sich an der nördlichen Costa Blanca, einer beliebten Region für ganzjähriges Wohnen mit mildem Klima.
Key services
Immobilien verkaufen, Immobilien vermieten, Immobilien verwalten, Neubau Immobilien
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap, LayerSlider, LazySizes
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of secure cookies (implied by cookieconsent attributes)

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content about real estate in Costa Blanca.
  2. No privacy or cookie policy found, which is a compliance gap.
  3. Contact info is clearly presented with phone and email.
  4. No social media links detected.
  5. No security incident or vulnerability disclosure info present.
  6. WHOIS data missing, raising concerns about domain registration status.
  7. Website uses modern frontend technologies and is mobile optimized.
  8. No advertising or tracking services detected.
  9. No explicit security headers found in HTML content.
  10. No structured data (JSON-LD or Open Graph) found in the provided HTML.
Technical notes

Notes

The website uses a mix of jQuery, Bootstrap, and LayerSlider for UI and interactivity, indicating a traditional but effective frontend stack. Lazy loading images and responsive design improve performance and mobile usability. The CMS appears to be a proprietary or niche real estate platform (immoprofessional.com). No major technical issues or broken elements were detected. SEO is supported by meta tags and structured navigation, but no JSON-LD or Open Graph metadata was found, which could be added to improve search visibility. Hosting provider details are not evident from the content. Overall, the technical infrastructure is solid but could benefit from modernization in metadata and security 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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