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Security report for avisosdeocasion.com

Avisos de Ocasión EL NORTE · Real Estate · Mexico

Medium risk. 5 critical or high findings in SSL/TLS and GDPR outside view.

Security score

62/100

Risk levelMedium

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

Avisos de Ocasión EL NORTE operates a regional online classifieds platform focused on real estate listings including sales, rentals, and transfers of houses, apartments, land, and commercial properties primarily in Monterrey, Mexico. The website offers a broad range of classified categories and integrates advertising services. The platform targets general consumers and real estate investors in the Monterrey metropolitan area. Technically, the site uses modern JavaScript libraries such as Slick Carousel and Google Tag Manager for analytics and marketing, with a responsive design optimized for mobile devices. However, the site lacks visible privacy and cookie policies and does not show security headers in the provided data, which are areas for improvement. The WHOIS data is missing or indicates the domain is unregistered, which raises concerns about domain legitimacy despite the professional content and clear contact information. Overall, the site is functional and trustworthy from a user perspective but requires enhancements in security and compliance documentation.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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

5 findings rated critical or high. Fix these first.

  1. 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

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  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

    • 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, Twitter, YouTube

      What to do: Document all third-party data sharing in your privacy policy

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

Keep watching avisosdeocasion.com

This scan found 15 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
80
Email security
70
DNS health
85
Network security
100
GDPR outside view
35
Average
62

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

The business is positioned as a key regional classifieds provider under the Grupo Reforma umbrella, serving the Monterrey market with a focus on real estate. Its competitive advantage lies in its extensive listings, local market knowledge, and integration with Grupo Reforma's secure ad ordering platform. Revenue streams likely include advertising fees and premium listing services. The target customers are property buyers, renters, and sellers in the region. The presence of multiple contact phone numbers and a physical address supports business credibility. The platform shows signs of moderate digital maturity with room for growth in privacy compliance and security practices.

Security posture

The website employs HTTPS and uses Google Tag Manager for analytics, indicating basic security hygiene. However, the absence of visible security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces its security posture. No evidence of exposed sensitive data or vulnerable libraries was found. The lack of explicit privacy and cookie policies and consent mechanisms is a compliance gap. The missing WHOIS data and domain registration information are significant concerns that impact trustworthiness. Incident response and vulnerability disclosure mechanisms are not evident. Overall, the security maturity is moderate but requires improvements to meet best practices and regulatory compliance.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with user consent mechanisms to improve compliance and user trust.
  2. Add and configure security headers (CSP, HSTS, X-Frame-Options, X-Content-Type-Options) to enhance protection against common web attacks.
  3. Investigate and resolve the missing WHOIS data issue to ensure domain legitimacy and reduce suspicion.
  4. Establish and publicize incident response and vulnerability disclosure policies to demonstrate security readiness.
  5. Enhance accessibility features and conduct regular security audits to maintain a robust security posture.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Avisos de Ocasión EL NORTE
Description
Bienes Raíces, descubre propiedades e inmuebles: venta, renta y traspaso de casas, departamentos, terrenos, locales, bodegas, naves industriales y edificios
Key services
Real estate listings, Vehicle listings, Job postings, General classifieds, Advertising services
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Slick Carousel, JavaScript, HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • Use of HTTPS (implied by canonical URL https://)
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
AppNexus
Marketing tools
Google Analytics (deprecated)
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and multiple real estate listings.
  2. No WHOIS data available, indicating possible domain registration issues or privacy.
  3. No explicit privacy, cookie, or terms of service pages detected.
  4. Contact information is clearly provided with phone numbers and physical address.
  5. Use of modern JavaScript libraries and Google Tag Manager for analytics and marketing.
  6. No security headers visible in provided data; SSL status unknown.
  7. No adult or questionable content detected; content is safe for general audiences.
  8. Advertising is present via AppNexus with standard ad placements.
  9. Social media presence includes Facebook link.
  10. Forms present for search and posting ads, but no explicit security or privacy notices.
Technical notes

Notes

The website uses a modern front-end stack with asynchronous loading of Google Tag Manager and ad scripts from AppNexus. It employs Slick Carousel for UI components and uses structured data (JSON-LD) for SEO and rich snippets. The site is mobile optimized with responsive design and includes meta tags for social media sharing. However, no CMS or hosting provider information is directly detectable. Performance appears moderate with deferred CSS loading and asynchronous scripts. The site lacks visible security headers and explicit privacy compliance scripts. Technical debt is moderate, with opportunities to improve security and privacy implementations.
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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