Skip to main content

Security report for estadao.com.br

Estadão · Media · Brazil

Medium risk. 6 critical or high findings in Security headers and GDPR outside view.

Security score

65/100

Risk levelMedium

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

Estadão is a leading Brazilian news media company with a long history dating back to 1875. It offers comprehensive news coverage across politics, economy, sports, culture, technology, and lifestyle, targeting a broad general audience. The website operates a subscription-based paywall model and provides diverse content formats including articles, podcasts, videos, and newsletters. The brand is well-established with consistent branding and strong trust indicators such as published ethics policies and social media presence. Technically, the website employs a modern technology stack including React, Google Analytics 4, Chartbeat, and a robust consent management platform. It uses Akamai for hosting and CDN services, ensuring fast performance and excellent mobile optimization. The site is SEO optimized and accessible, with lazy loading and service workers enhancing user experience. From a security perspective, the site enforces HTTPS with strong SSL configuration and security headers. It follows best practices in script loading and data protection, although it lacks a public security.txt or explicit incident response contacts. No vulnerabilities or exposed sensitive data were detected in the analyzed content. Overall, Estadão presents a professional, secure, and privacy-compliant digital presence with extensive content and strong business credibility. Strategic recommendations include publishing vulnerability disclosure information and incident response contacts to further enhance security transparency.

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

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 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  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 estadao.com.br

This scan found 24 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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
85
Security headers
30
Email security
75
DNS health
65
Network security
100
GDPR outside view
35
Average
65

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

Estadão holds a dominant position in the Brazilian media market, leveraging its historical legacy and diversified content offerings. Its business model combines digital subscriptions with advertising revenue, supported by a paywall system. The company targets a wide demographic interested in national and international news, with specialized sections for finance, culture, sports, and technology. Partnerships with educational and non-profit organizations expand its ecosystem. The presence of multiple subsidiaries and related domains indicates a broad operational footprint. Growth indicators include active social media engagement and continuous content updates. Competitive advantages include brand recognition, comprehensive editorial policies, and a technologically advanced platform. Revenue streams are diversified across subscriptions, advertising, and specialized content services. The company’s strategic focus on digital transformation and user engagement positions it well for future market challenges.

Security posture

Estadão demonstrates a mature security posture with enforced HTTPS, strong SSL configurations, and implementation of security headers such as HSTS and CSP. The use of asynchronous script loading and consent management platforms reduces attack surface and ensures compliance with privacy regulations. No critical vulnerabilities or exposed sensitive information were found. However, the absence of a public security.txt file and incident response contact channels represents a gap in vulnerability disclosure and incident management transparency. The site’s paywall mechanism is robust and integrated with user propensity models, indicating advanced access control. Compliance with GDPR and Brazilian data protection laws is evident through published privacy policies and cookie consent mechanisms. The security culture appears proactive but could benefit from enhanced public communication on security incident handling.

Recommendations

  1. Publish a security.txt file to facilitate responsible vulnerability disclosure.
  2. Provide clear incident response contact information on the website.
  3. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  4. Enhance transparency around data retention policies and user privacy controls.
  5. Continue investing in security awareness and compliance training for staff.

Contact details published on the site

Addresses
Legal name
Estadão
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Estadão
Description
As principais e as últimas notícias do Brasil e do mundo sobre política, economia, esportes, cultura, tecnologia, estilo de vida e muito mais.
Key services
News publishing, Digital subscriptions, Advertising, Newsletters, Podcasts, Video content
Content quality
excellent
Branding
consistent

Technology

Stack
React, Google Tag Manager, Google Analytics 4, Chartbeat, Amazon A9 (apstag), Scorecard Research, Hotjar, DebugBear, Boomerang, Privacy Manager (Consent Management Platform), Prebid.js (header bidding for ads), DoubleClick for Publishers (Google Ads), Lazy loading images, Service Worker for SPA
Frameworks
React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of CSP and origin trials
  • Paywall script loaded asynchronously
  • No exposed sensitive data in HTML
  • Lazy loading and deferred scripts to reduce attack surface

Analytics and tracking

Services
Google Analytics 4, Chartbeat, Scorecard Research, Boomerang, Hotjar
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google DoubleClick, Amazon A9, Smart AdServer, Rubicon Project, SimpleAds
Tracking pixels
Chartbeat, Scorecard Research, Hotjar, Boomerang, Facebook Pixel
Marketing tools
Privacy Manager (Consent Management Platform)
Transparency
good

Site quality

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

Key observations

  1. Website is a major Brazilian news portal with extensive content and multiple sections.
  2. Strong use of modern web technologies and analytics.
  3. Comprehensive privacy and cookie policies with consent mechanisms.
  4. No signs of blocking or WAF challenges.
  5. Professional branding and consistent user experience.
  6. Use of paywall for subscription content.
  7. Multiple social media channels linked and active.
  8. No exposed sensitive data or obvious security vulnerabilities in HTML content.
Technical notes

Notes

The website is built on a modern React-based framework (Fusion/Arc Publishing) with extensive use of asynchronous JavaScript for analytics, advertising, and consent management. Hosting is provided by Akamai, ensuring global CDN coverage and performance optimization. The site employs lazy loading for images and service workers for offline capabilities, enhancing speed and mobile experience. SEO is well-implemented with comprehensive meta tags, Open Graph, and JSON-LD structured data. Accessibility features are present but could be further enhanced with ARIA landmarks and keyboard navigation improvements. The technical infrastructure supports a complex content delivery model including paywall integration and multi-format media 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

Reviews of this site

Share your experience with estadao.com.br. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review estadao.com.br.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.