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Security report for serasaexperian.com.br

Serasa Experian · Finance · Brazil

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

70/100

Risk levelMedium

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

Serasa Experian is a leading Brazilian data technology company specializing in business credit information, fraud prevention, and decision-making solutions. Positioned as the largest Datatech in Brazil, it serves primarily business clients with services such as CNPJ consultation and credit scoring (Serasa Score). The website reflects a mature digital presence with comprehensive content, clear branding, and strong compliance with privacy regulations including GDPR. Technically, the site leverages advanced analytics, consent management, and modern web technologies, indicating a high level of digital maturity. Security posture is robust with HTTPS enforcement and consent mechanisms, though explicit security policies and incident response contacts are not publicly detailed. Overall, the site demonstrates professionalism, trustworthiness, and a strong market position in the financial data services sector.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 100 · Medium
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. 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 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

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn, YouTube, Google APIs, Google Ads

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

  3. 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

  4. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      No Name Servers Found

      Unable to find name servers for domain

      What to do: Configure proper name servers for the domain

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

Keep watching serasaexperian.com.br

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.

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
82
Security headers
55
Email security
50
DNS health
65
Network security
100
GDPR outside view
65
Average
70

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 company operates in the finance and technology sectors, focusing on B2B services for Brazilian enterprises. Its business model revolves around providing data-driven insights and credit risk assessment tools. The presence of multiple offices across Brazil and affiliation with Experian indicates a large enterprise scale. Marketing and analytics integrations suggest a data-centric approach to customer engagement and growth. The company maintains a consistent brand image and leverages social media channels for outreach. No direct evidence of subsidiaries or complex partnership domains was found in the analyzed content.

Security posture

The website employs HTTPS with strong SSL configuration and integrates consent management tools compliant with GDPR, including Google Consent Mode. Multiple third-party analytics and marketing scripts are used, with mechanisms to block unauthorized scripts, enhancing security. However, explicit security policies, incident response procedures, and vulnerability disclosure information are absent, representing areas for improvement. No vulnerabilities or exposed sensitive data were detected in the content. The security score is high but could be improved with more transparency and published security documentation.

Recommendations

  1. Publish a dedicated security policy page detailing security frameworks and practices.
  2. Provide clear incident response contact channels such as security@ or abuse@ emails.
  3. Implement and publish a vulnerability disclosure or security.txt file to encourage responsible reporting.
  4. Verify and explicitly implement security headers like Content-Security-Policy and X-Frame-Options.
  5. Enhance transparency on data retention policies and DPO contact information.

Contact details published on the site

Addresses
Legal name
Serasa Experian
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Serasa Experian
Description
Conte com a maior Datatech do Brasil para consultar CNPJ, ver Serasa Score, prevenção à fraude e mais soluções para tomar decisões inteligentes.
Key services
CNPJ consultation, Serasa Score, Fraud prevention, Business decision solutions
Content quality
excellent
Branding
consistent

Technology

Stack
Adobe Helix RUM, Google Tag Manager, Smooch chat widget, Adopt consent management, Hotjar, Google Analytics, Google Ads, Microsoft Clarity, Cloudflare (security cookie)
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management with GDPR compliance
  • Use of Google Consent Mode
  • Blocking of unauthorized scripts via Adopt injector

Analytics and tracking

Services
Google Analytics, Adobe Analytics, Hotjar, Microsoft Clarity
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google Ads, Facebook Ads, Microsoft Bing Ads, Yahoo Ads, TikTok Ads, Adara Media
Tracking pixels
Adobe Audience Manager, Hotjar, Microsoft Clarity, LinkedIn Insight Tag, Blue Tag
Marketing tools
Adobe Marketing Cloud, Adobe Analytics, AdOpt Consent Management
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and advanced consent management.
  2. Strong compliance with GDPR and cookie consent regulations.
  3. Use of multiple reputable analytics and marketing tools.
  4. No signs of malicious or suspicious activity.
  5. Business information is clearly presented and consistent with domain registration.
Technical notes

Notes

The website is built on a modern technology stack including Adobe Experience Manager, Google Tag Manager, and various analytics and marketing tools. It uses advanced consent management with Adopt SDK and integrates multiple third-party services for user tracking and advertising. Performance is moderate with good mobile optimization and accessibility features. The site uses canonical URLs, meta tags, and structured data for SEO. Some technical debt may exist due to the complexity of multiple third-party scripts, but overall the infrastructure supports a professional and scalable web presence.
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. 75/100Medium4 findings · partial scanView report
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