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Security report for gruposdotelegram.net

Grupos do Telegram · Other · Brazil

Medium risk. 6 critical or high findings in Email security, Security headers and 2 other checks.

Security score

67/100

Risk levelMedium

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

Grupos do Telegram is a Portuguese-language website launched in 2024 that serves as a directory and aggregator of Telegram groups across a wide range of topics including adult content, motivation, cryptocurrencies, courses, spirituality, and marketing. The platform targets Brazilian users seeking to discover and join Telegram communities relevant to their interests. The business model appears to be based on providing curated links and possibly monetizing through partnerships or advertising. Technically, the site uses modern web technologies including JavaScript ES modules, Cloudflare DNS, and DigitalOcean Spaces for static content delivery, with a responsive design optimized for mobile users. Security posture is adequate with HTTPS enforced and domain registration locked, but lacks DNSSEC and explicit security policies. Privacy compliance is basic, with a privacy policy present but no cookie consent mechanism despite use of tracking scripts. Overall, the site is functional, professionally designed, and trustworthy for its niche, but could improve in privacy and security transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. 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 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';…
  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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 gruposdotelegram.net

This scan found 22 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
75
Security headers
40
Email security
60
DNS health
75
Network security
100
GDPR outside view
53
Average
67

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 gruposdotelegram.net, from OffSeq Breach.

Total records
1
Employees
0
Customers
1
Third parties
0
Weak passwords
0%

1 subdomain 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 gruposdotelegram.net.

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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

The website occupies a niche market aggregating Telegram groups for Portuguese-speaking users, primarily in Brazil. It leverages a content directory model with thematic categorization to attract users interested in diverse topics, including sensitive adult content. The platform's competitive advantage lies in its curated listings and ease of access to Telegram groups. Revenue streams likely include advertising and automated partnerships, as indicated by links to a Telegram bot and partner site Barao Trends. The site is small in scale, recently founded, and focused on organic growth within its community. Strategic partnerships and content diversification could enhance market position.

Security posture

The security maturity level is moderate. The site enforces HTTPS and uses domain locking statuses to prevent unauthorized changes. However, it lacks DNSSEC, which could expose DNS queries to spoofing. No Content Security Policy or security.txt file is present, limiting transparency and incident response readiness. The absence of a cookie consent mechanism despite tracking scripts indicates a compliance gap with GDPR and similar regulations. No exposed sensitive data or vulnerable libraries were detected. The site would benefit from implementing stronger security headers and explicit incident response contacts to improve trust and compliance.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  2. Implement a Content Security Policy (CSP) header to mitigate cross-site scripting risks.
  3. Add a cookie consent banner and detailed cookie policy to comply with privacy regulations.
  4. Publish a security.txt file with incident response contact information to improve transparency.
  5. Regularly audit third-party scripts and dependencies to identify and mitigate vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Grupos do Telegram
Description
Se você está em busca de novas conexões e deseja se aprofundar em tópicos que realmente interessam a você, os grupos do Telegram são a escolha perfeita.
Key services
Listagem e divulgação de grupos do Telegram, Links diretos para entrada em grupos, Categorias temáticas variadas
Content quality
good
Branding
consistent

Technology

Stack
Cloudflare DNS, JavaScript ES Modules, CSS3, HTML5, Google Tag Manager, Cloudflare Insights
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Domain locked with multiple EPP status codes
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager, Cloudflare Insights
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Cloudflare Insights
Transparency
basic

Site quality

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

Key observations

  1. Website is a Portuguese language directory of Telegram groups with diverse categories.
  2. Content includes adult and sensitive topics, clearly marked with age restrictions.
  3. No direct company contact emails or phone numbers found; contact is via form only.
  4. No cookie consent banner or explicit cookie policy detected despite tracking scripts.
  5. Use of modern web technologies and CDN for static assets.
  6. No visible security.txt or incident response information.
  7. WHOIS data shows domain is new but properly locked and registered with a reputable registrar.
  8. No signs of WAF or content blocking; site fully accessible.
Technical notes

Notes

The website is built with modern web standards including HTML5, CSS3, and JavaScript ES modules, delivering a responsive and mobile-optimized user experience. Static assets are served via DigitalOcean Spaces CDN, and DNS is managed through Cloudflare, enhancing performance and reliability. Google Tag Manager and Cloudflare Insights are used for analytics and monitoring. The site does not appear to use a traditional CMS, suggesting a custom or lightweight framework. Performance is moderate with good SEO practices including meta tags and structured data (JSON-LD). Accessibility is basic but functional. Technical risks include lack of DNSSEC and missing advanced security headers, which could be addressed to reduce attack surface.
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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