Is d4sign.com.br Safe? Security Analysis for D4Sign
https://d4sign.com.brCheck if d4sign.com.br is a scam or legitimate. Free security scan and reviews.
Below Technology avg (72)
10,000+
Domains scanned
500+
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
D4Sign is Brazil's leading electronic and digital signature platform, offering a comprehensive SaaS solution that integrates advanced AI capabilities to streamline document signing and contract management. The company serves a broad audience including businesses and individuals, providing secure authentication methods linked to government data for enhanced trust and legal compliance. Technically, the website is built on WordPress with multiple modern plugins and integrates various marketing and analytics tools, hosted on AWS. However, the current SSL/TLS configuration is invalid, posing a significant security risk. The company demonstrates strong market presence with over 500,000 companies trusting its services and certifications such as Great Place To Work and sustainability seals. Privacy and cookie policies are comprehensive and GDPR compliant, with active consent mechanisms.
Detected Technologies
9 urgent findings need attention
9 high
- + 1 more findings in the full report below
Keep d4sign.com.br under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
Security drift alerts
Risk score drops, new high-severity issues, and header hardening gaps
Compliance watch
GDPR / NIS2 posture changes with governance evidence snapshots
Infrastructure surface
Unexpected open services, SSL expiry, DNS & email authentication changes
Content & tracker intelligence
Marketing tech shifts, analytics drift, and AI recommendation updates
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Security Headers
6 findings
45/100
GDPR Compliance
5 findings
25/100
NIS2 Compliance
7 findings
25/100
Email Security
4 findings
75/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
D4Sign holds a dominant market position in Brazil's electronic signature sector, leveraging AI to differentiate its offerings. Its business model focuses on SaaS subscriptions with tiered plans and API integrations, targeting corporate clients across multiple sectors. The platform's integration with government databases for authentication and its extensive authentication options provide competitive advantages. The company maintains a strong partnership ecosystem and invests in customer trust through certifications and testimonials. Growth indicators include a large client base and active marketing campaigns. The use of multiple external domains for marketing and secure services indicates a mature digital presence.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Company Registration
D4S Serviços em Tecnologia
CNPJ 23.691.353/0001-80
Security Posture Analysis
Comprehensive Security Assessment
The security posture of D4Sign's website shows mixed maturity. While SPF and DMARC email authentication are properly configured, the lack of a valid SSL certificate and disabled TLS protocols are critical vulnerabilities that undermine user trust and data security. The absence of HSTS and OCSP stapling further weakens the HTTPS implementation. No explicit security or incident response policies are publicly available, which may impact compliance with regulations like GDPR and NIS2. The platform uses AWS hosting, which provides a secure infrastructure foundation, but the website's SSL misconfiguration must be urgently addressed. Cookie consent management is robust, indicating good privacy practices.
Strategic Recommendations
Priority Actions for Security Improvement
Immediately install and maintain a valid SSL/TLS certificate to secure all web traffic.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
LOWControls referrer information sent with requests
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
Insufficient contact information
MEDIUMGDPR requires organizations to provide clear contact details
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Facebook, LinkedIn, YouTube, Cloudflare, Google APIs
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
DMARC not enforcing
MEDIUMDMARC policy is set to "none"
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
How does d4sign.com.br compare?
See how d4sign.com.br stacks up against similar websites in the same industry.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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PDF Report & Export
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.
SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
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