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Security report for redfin.ca

Redfin · Real Estate · Canada

Medium risk. 4 critical or high findings in Security headers and GDPR outside view.

Security score

56/100

Risk levelMedium

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

Redfin.ca is a professional online real estate platform serving the Canadian market, offering home search, rentals, mortgage services, and local real estate agent assistance. The company is a large, established player in the real estate industry with a strong brand presence and multiple subsidiaries. The website content is rich, well-structured, and targets home buyers, sellers, and renters effectively. Technically, the site uses modern web technologies such as React and integrates with Google Tag Manager and AWS WAF SDK, but suffers from slow load times and lacks a valid SSL certificate, which severely impacts security posture. Privacy policies and cookie consent mechanisms are present and indicate GDPR compliance, enhancing user trust. However, the absence of HTTPS and modern TLS protocols is a critical security vulnerability that must be addressed immediately to protect user data and maintain credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 100 · High
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 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 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

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

Keep watching redfin.ca

This scan found 14 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

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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
45
Email security
50
DNS health
50
Network security
100
GDPR outside view
43
Average
56

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

Redfin operates as an essential entity in the real estate sector, leveraging a hybrid business model combining online tools with local agent services. Its market position is strong, supported by a comprehensive service offering and a wide geographic footprint in Canada. The company benefits from a robust partnership and subsidiary ecosystem, including Rent., ApartmentGuide, Bay Equity Home Loans, and Title Forward, which diversify its revenue streams and service capabilities. The website reflects a mature digital presence with good branding consistency and trust indicators such as fair housing policies and legal disclaimers. Growth indicators include active experimentation and personalization features visible in the site’s scripts and API calls.

Security posture

The current security posture of redfin.ca is weak due to the lack of a valid SSL certificate and absence of HTTPS, exposing users to potential data interception and man-in-the-middle attacks. While some security headers are implemented, critical best practices such as HSTS, OCSP stapling, and session resumption are missing. No explicit incident response or vulnerability disclosure policies are found, which may hinder timely handling of security incidents. The site does not expose sensitive data or vulnerable libraries but must urgently improve its SSL/TLS configuration to meet modern security standards and regulatory compliance requirements.

Recommendations

  1. Immediately install and maintain a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Enable modern TLS protocols (TLS 1.2 or TLS 1.3) and disable outdated protocols.
  3. Implement HTTP Strict Transport Security (HSTS) with includeSubDomains and preload directives.
  4. Enable OCSP stapling to improve certificate revocation checking and performance.
  5. Develop and publish a formal vulnerability disclosure policy and incident response plan.
  6. Optimize website performance to reduce load times and improve user experience.
  7. Enhance accessibility features to meet WCAG standards for broader user inclusivity.

Contact details published on the site

Legal name
Redfin Unlimited Liability Company
Registration number
Licensed and registered real estate brokerage in British Columbia and Ontario only
Technical notes

Notes

The website is built on a modern React framework with asynchronous JavaScript loading managed by LABjs. It integrates with Google Tag Manager for analytics and AWS WAF SDK for security monitoring. The hosting infrastructure appears to use CDN services for static assets. Despite modern technologies, the site suffers from slow load times (over 20 seconds) and lacks a valid SSL certificate, which is a significant technical risk. The site uses custom CMS or proprietary backend systems, with no common CMS detected. There is room for technical modernization, especially in security and performance optimization, to reduce technical debt and improve operational resilience.
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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