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Security report for cert.br

NIC.br - Núcleo de Informação e Coordenação do Ponto BR · Technology · Brazil

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

Security score

73/100

Risk levelMedium

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

CERT.br is the Brazilian national Computer Security Incident Response Team (CSIRT) operated by NIC.br, providing incident response, situational awareness, and knowledge transfer services to the Brazilian Internet community. It holds a strong market position as the national CSIRT of last resort, with recognized partnerships including FIRST, Trusted Introducer, and SEI. The website content is rich, professionally designed, and targeted at security professionals, network administrators, and the broader Brazilian Internet community. Technically, the website employs modern frameworks such as Bootstrap and FontAwesome, is mobile-optimized, and demonstrates good accessibility and SEO practices. While explicit security headers and vulnerability disclosure policies are not visible, the site uses HTTPS and promotes secure communication practices such as PGP key usage. No blocking or WAF mechanisms interfere with content access. Security posture is solid with clear incident response channels and community engagement, though improvements could be made by publishing explicit security headers and formal vulnerability disclosure policies. Privacy compliance is strong with a comprehensive privacy policy, though no cookie consent mechanism was detected. Overall, CERT.br presents a trustworthy, authoritative, and professional online presence aligned with its mission to enhance Internet security in Brazil.

Scanned

This is an earlier scan of cert.br. View the latest report

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. 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: Facebook, LinkedIn, YouTube

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

  2. 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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  • TLS certificates and expiry
  • DNS records
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  • 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
80
Security headers
80
Email security
70
DNS health
75
Network security
100
GDPR outside view
35
Average
73

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention cert.br, from OffSeq Breach.

Total records
19
Employees
0
Customers
19
Third parties
0
Weak passwords
42%

2 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for cert.br.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

CERT.br operates as a governmental essential entity under NIC.br, focusing on cybersecurity incident management and community education. Its business model is non-profit and service-oriented, targeting national stakeholders including CSIRTs, network operators, and end users. The organization benefits from strategic partnerships with international security bodies, enhancing its credibility and operational reach. The website reflects a mature digital presence with extensive resources, training offerings, and statistical data portals, supporting its role as a national security hub. Growth indicators include active event hosting, training courses, and continuous publication of threat intelligence and best practices. The partnership ecosystem is robust, involving global and regional security organizations. CERT.br's operations are consistent with its domain registration and organizational identity, reinforcing its legitimacy and trustworthiness.

Security posture

CERT.br demonstrates a mature security posture appropriate for a national CSIRT. The website enforces HTTPS and promotes secure communication channels such as PGP keys. It actively shares threat intelligence using platforms like MISP and adheres to information sharing standards such as TLP. However, the absence of explicit security headers and a formal vulnerability disclosure policy represents areas for improvement. No vulnerabilities or exposed sensitive data were detected in the website content. Incident response readiness is evident through dedicated contact pages and community engagement. Compliance with privacy regulations is supported by a comprehensive privacy policy, though cookie consent mechanisms are lacking. Overall, the security culture is strong, with clear emphasis on education, transparency, and collaboration.

Recommendations

  1. Implement and publish comprehensive HTTP security headers including Content Security Policy (CSP), Strict-Transport-Security (HSTS), X-Frame-Options, and X-Content-Type-Options.
  2. Develop and publish a formal vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  3. Introduce a cookie consent mechanism to comply with privacy regulations and enhance user transparency.
  4. Enhance visibility of incident response contact channels by including dedicated security contact emails (e.g., security@cert.br, abuse@cert.br) if applicable.
  5. Continue to expand training and community engagement initiatives to strengthen the national cybersecurity ecosystem.

Contact details published on the site

Legal name
NIC.BR - Núcleo de Informação e Coordenação do Ponto BR
Registration number
05.506.560/0001-36
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NIC.br - Núcleo de Informação e Coordenação do Ponto BR
Description
O CERT.br é um Time de Resposta a Incidentes de Segurança (CSIRT) de Responsabilidade Nacional de último recurso, mantido pelo NIC.br. O centro presta serviços da área de Gestão de Incidentes de Segurança da Informação para qualquer rede que utilize recursos administrados pelo NIC.br.
Key services
Incident management and response, Situational awareness and threat intelligence, Knowledge transfer via courses, publications, and events
Content quality
excellent
Branding
consistent

Technology

Stack
Bootstrap, FontAwesome, Google Fonts, Material Icons
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced (implied by URL https://cert.br/)
  • Use of PGP keys for secure communication
  • Incident response contact information provided
  • Use of TLP for information sharing

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

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 in Portuguese.
  2. Strong focus on cybersecurity incident response and community knowledge sharing.
  3. No signs of blocking, WAF challenges, or minimal content.
  4. Multiple trusted partnerships and affiliations with international security organizations.
  5. No explicit privacy or cookie banners detected, but privacy policy is comprehensive.
  6. No visible contact emails or phone numbers, but contact forms and pages are present.
  7. No explicit security.txt or vulnerability disclosure policy found.
  8. No advertising or tracking scripts detected.
  9. Mobile optimized with responsive design and accessibility features.
Technical notes

Notes

The website is built using modern web technologies including Bootstrap for responsive design and FontAwesome for iconography, ensuring good mobile optimization and accessibility. The site structure is clear with well-organized navigation and rich content. No CMS was detected, suggesting a custom or static site implementation. Performance is moderate with no evident blocking or errors. SEO is supported by appropriate meta tags and structured content. Opportunities exist to improve technical security by adding security headers and formalizing vulnerability disclosure mechanisms. Hosting provider details are not explicitly available from the content.
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. 70/100Medium27 findingsView report
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