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Security report for apartmentguide.com

ApartmentGuide · Real Estate · United States

Medium risk. 7 critical or high findings in Security headers and GDPR outside view.

Security score

55/100

Risk levelMedium

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

ApartmentGuide is a large-scale online real estate platform specializing in apartment rentals across the United States. It offers a comprehensive apartment search tool with listings, reviews, photos, and floor plans, targeting renters and property managers. The platform integrates with major networks such as Rent.com and Redfin, enhancing its market reach. Technically, the site employs modern web technologies including React and Next.js, hosted on AWS CloudFront CDN, and uses analytics tools like Datadog RUM and Google Tag Manager. However, the security posture is weak due to the absence of a valid SSL certificate and HTTPS support, lack of security headers, and no visible privacy or cookie policies, which raises concerns about user data protection and compliance. The site extensively tracks users without clear consent mechanisms, impacting privacy compliance. Overall, while the business model and technical infrastructure are solid, significant improvements in security and privacy compliance are necessary to enhance trust and protect users.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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. 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching apartmentguide.com

This scan found 17 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
50
Security headers
20
Email security
50
DNS health
85
Network security
100
GDPR outside view
25
Average
55

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

ApartmentGuide holds a strong position in the US apartment rental market, leveraging partnerships with Rent.com and Redfin to access a large audience. Its business model focuses on providing apartment listings and marketing solutions to property managers, supported by a mobile app for renters. The platform targets a broad audience of apartment seekers and real estate professionals. The company demonstrates consistent branding and good content quality, but lacks visible direct contact information and formal policies on privacy and terms, which could affect user trust. The integration of multiple advertising and tracking services suggests a revenue model partially reliant on marketing and advertising solutions.

Security posture

The website's security posture is currently poor. The absence of a valid SSL certificate and HTTPS support is a critical vulnerability that exposes users to data interception risks. No HSTS or other security headers are present, and OCSP stapling and session resumption are disabled, indicating a lack of modern security best practices. Although no known vulnerabilities like Heartbleed or POODLE were detected, the lack of encryption and privacy policies significantly undermines user data protection. The extensive use of tracking scripts without visible consent mechanisms further complicates compliance with GDPR and other privacy regulations. Incident response and security policy information are not found, suggesting limited transparency in security governance.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Implement security headers including HSTS with preload, Content-Security-Policy, and X-Frame-Options.
  3. Publish comprehensive privacy and cookie policies with clear GDPR compliance and consent mechanisms.
  4. Enable OCSP stapling and session resumption to improve security and performance.
  5. Provide clear contact information for security incidents and data protection inquiries.
  6. Review and limit tracking scripts to comply with privacy regulations and improve user trust.
Technical notes

Notes

The website uses a modern React and Next.js framework with server-side rendering and static asset preloading for performance. Hosting is via AWS CloudFront CDN, ensuring global content delivery. Analytics and monitoring are implemented using Datadog RUM and Google Tag Manager, indicating a mature approach to performance and user behavior tracking. However, the lack of HTTPS and security headers is a significant technical debt. The site appears mobile-optimized but with basic accessibility features. SEO is supported by canonical links and meta descriptions. Performance metrics were not available, but the extensive use of CSS and JS chunks suggests a complex frontend architecture that could benefit from optimization.
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

Earlier scans of this domain

  1. 55/100Medium24 findingsView report
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