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Security report for antispam.br

Comitê Gestor da Internet no Brasil (CGI.br) · Government · Brazil

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

62/100

Risk levelMedium

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

Antispam.br is a Brazilian governmental initiative under the Comitê Gestor da Internet no Brasil (CGI.br) focused on combating spam and promoting internet security awareness. The website serves as an educational platform providing resources, guidelines, and campaigns aimed at reducing spam and improving network security for Brazilian internet users and network administrators. The site is well positioned as a trusted source within Brazil's internet governance ecosystem. Technically, the website uses legacy XHTML and CSS without modern JavaScript frameworks or analytics tools. The site lacks mobile optimization and accessibility features, and no HTTPS enforcement or security headers were detected in the provided content. The site includes a basic search form but does not collect sensitive user data. SEO and privacy compliance are minimal, with no visible privacy or cookie policies. From a security perspective, the site shows a low maturity level with missing HTTPS enforcement and security headers, which are critical for protecting user data and trust. No incident response or vulnerability disclosure information is provided. The WHOIS data confirms the domain's legitimacy and consistency with the website's mission and affiliation with CGI.br. Overall, Antispam.br is a credible and authoritative informational resource with room for improvement in technical modernization, security posture, and privacy compliance to enhance user trust and protection.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

6 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 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

    • 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 antispam.br

This scan found 26 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

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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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
62
Security headers
30
Email security
70
DNS health
60
Network security
100
GDPR outside view
50
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

Antispam.br operates as a non-profit governmental initiative under CGI.br, targeting Brazilian internet users and network administrators to combat spam and improve internet security. Its competitive advantage lies in its official backing and integration with Brazil's internet governance bodies. The business model focuses on education and policy dissemination rather than commercial revenue. The partnership ecosystem includes NIC.br, CETIC.br, CERT.br, and Registro.br, reinforcing its authoritative position. Growth indicators are not explicit but the ongoing domain registration and active campaigns suggest sustained relevance. Strategic observations include the need to modernize technical infrastructure and enhance compliance to maintain leadership in the anti-spam domain.

Security posture

The current security posture of Antispam.br is basic and lacks several best practices. The absence of HTTPS enforcement and security headers exposes users to potential risks such as data interception and clickjacking. No visible incident response or vulnerability disclosure mechanisms are present, limiting transparency and responsiveness to security events. The site does not collect sensitive data, reducing risk exposure, but also lacks privacy and cookie policies, which are important for compliance with regulations like GDPR. The WHOIS data and domain legitimacy are strong trust factors. Overall, the security maturity is low to moderate, with critical improvements needed in transport security and policy transparency.

Recommendations

  1. Implement HTTPS with HSTS to secure all communications and protect user data.
  2. Add essential security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish comprehensive privacy and cookie policies to improve compliance and user trust.
  4. Enhance mobile responsiveness and accessibility to improve user experience across devices.
  5. Establish and publicize incident response and vulnerability disclosure procedures.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Comitê Gestor da Internet no Brasil (CGI.br)
Description
Antispam.br is an initiative under the Comitê Gestor da Internet no Brasil (CGI.br) focused on combating spam and promoting internet security awareness in Brazil. The site provides educational content, policies, and campaigns aimed at reducing spam and improving network security.
Key services
Educational videos on internet security, Guidelines for network administrators (Porta 25 management), Spam identification and prevention tips, Public awareness campaigns
Content quality
good
Branding
consistent

Technology

Stack
HTML 4/XHTML 1.0 Transitional, CSS (external stylesheet), Basic HTML forms, No JavaScript libraries detected
Performance
moderate
Mobile
poor
Accessibility
basic
SEO
basic

Security

Observed score
40/100
Good practices seen
  • No forms collecting sensitive personal data except a search form
  • No visible vulnerable scripts or libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is informational and educational with focus on anti-spam and internet security.
  2. No privacy or cookie policies found, which is a compliance gap.
  3. No contact emails or phone numbers explicitly provided on the main page.
  4. No modern JavaScript frameworks or analytics tools detected.
  5. Site uses legacy HTML and CSS with limited mobile optimization.
  6. No visible security headers or HTTPS enforcement in provided data.
  7. Strong association with Brazilian internet governance entities enhances trust.
Technical notes

Notes

The website is built on legacy XHTML and CSS without modern JavaScript frameworks or CMS platforms. It lacks mobile optimization and accessibility features, which limits usability on modern devices. No analytics or tracking scripts were detected, indicating minimal data collection. The site performance is moderate but could benefit from modernization and optimization. The hosting provider and infrastructure details are not evident from the content. Technical debt is apparent due to outdated markup and lack of security features, presenting modernization opportunities to improve security, compliance, and user experience.
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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