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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 real estate platform specializing in apartment rental listings across the United States. It offers users a comprehensive search tool with detailed listings, photos, videos, and floor plans, targeting apartment seekers nationwide. The platform also provides marketing solutions for property owners and integrates with the RentPath and Redfin networks, indicating a strong market position in the real estate sector. Technically, the website is built on modern frameworks such as React and Next.js, hosted on AWS CloudFront, and employs advanced monitoring tools like Datadog RUM. However, the site lacks a valid SSL/TLS certificate and does not serve content over HTTPS, which is a critical security deficiency. Additionally, no privacy or cookie policies were detected, raising compliance concerns. The security posture is weak due to missing HTTPS, lack of security headers, and absence of incident response information. Overall, while the business model and technical infrastructure are solid, the security and privacy compliance gaps present significant risks that should be addressed promptly.

Scanned

This is an earlier scan of apartmentguide.com. View the latest report

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 operates in the competitive online real estate market, focusing on apartment rentals. Its integration with RentPath and Redfin suggests a broad partnership ecosystem and access to a large user base. The business model revolves around providing apartment listings and marketing services to property owners, monetizing through advertising and listing fees. The target customers are apartment seekers and property managers in the US. The platform's mobile app availability enhances user engagement. Growth indicators include extensive SEO links and marketing tools. However, the lack of visible contact information and privacy policies may impact user trust and regulatory compliance.

Security posture

The website currently exhibits a low security maturity level. The absence of a valid SSL certificate and HTTPS support exposes users to potential data interception and undermines trust. Missing security headers and no evidence of incident response or vulnerability disclosure policies further weaken the security posture. While no known SSL vulnerabilities or malware were detected, the lack of encryption and privacy compliance are critical issues. The use of third-party analytics and tracking services without clear privacy disclosures may also pose compliance risks under GDPR and other regulations. The organization should prioritize implementing HTTPS, enhancing security headers, and publishing clear privacy and security policies to improve its security culture and readiness.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Implement and publish comprehensive privacy and cookie policies with clear consent mechanisms.
  3. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Establish and disclose an incident response policy and contact channels for security issues.
  5. Review and optimize third-party tracking to align with privacy regulations and user expectations.
Technical notes

Notes

The website leverages a modern technology stack including React and Next.js frameworks, hosted on AWS CloudFront CDN, which supports scalability and performance. It integrates Datadog RUM for real user monitoring and Google Tag Manager for analytics and marketing tags. The site uses extensive CSS stylesheets and JavaScript chunks for modular loading. However, performance metrics were not available, and mobile optimization is basic. Accessibility features are minimal but present. The lack of HTTPS and security best practices represents a significant technical risk. Modernization opportunities include improving security configurations, enhancing mobile responsiveness, and optimizing SEO and accessibility further.
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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