Is letsencrypt.org Safe? Security Analysis for Internet Security Research Group
Check if letsencrypt.org is a scam or legitimate. Free security scan and reviews.
AI Summary
Let's Encrypt is a leading nonprofit Certificate Authority operated by the Internet Security Research Group (ISRG), providing free and automated TLS certificates to over 650 million websites globally. Their mission is to make HTTPS encryption accessible to everyone, enhancing Internet security and privacy. The organization is well-established, founded in 2014, and supported by major technology sponsors such as Google, AWS, Mozilla, and the Electronic Frontier Foundation. The website reflects a mature digital presence with comprehensive documentation, community support, and transparent nonprofit operations. Technically, the website is built using modern technologies including the Hugo static site generator, Cloudflare DNS and registrar services, and Plotly.js for data visualization. It demonstrates excellent performance, mobile optimization, and accessibility. The site enforces HTTPS and employs domain status protections to prevent unauthorized domain changes. However, DNSSEC is not enabled, representing a minor security enhancement opportunity. From a security perspective, Let's Encrypt maintains a strong posture with no detected vulnerabilities or exposed sensitive data. The absence of a published security policy or incident response contact is noted, as is the lack of a security.txt file for vulnerability disclosure. Privacy compliance is robust, with a clear privacy policy and GDPR adherence, though no cookie consent mechanism was detected. The business credibility is high, supported by transparent WHOIS data and consistent domain registration details. Overall, Let's Encrypt's website is professional, trustworthy, and aligned with its nonprofit mission. Strategic recommendations include enabling DNSSEC, publishing a security.txt file, and enhancing transparency around security policies and incident response to further strengthen trust and compliance.
Detected Technologies
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Let's Encrypt occupies a dominant position in the free TLS certificate market, disrupting traditional paid certificate authorities by offering automated and accessible encryption solutions. Their nonprofit model is funded through sponsorships and donations from major technology companies and foundations, ensuring sustainability without commercial pressure. The target audience includes website owners, developers, and organizations seeking to secure their web presence. The extensive partner ecosystem and community engagement foster widespread adoption and trust. Growth indicators such as over 650 million certificates issued and detailed annual reports demonstrate strong market traction and operational transparency.
Extracted Contact Information
Marketing Intelligence Data
Security Posture Analysis
Comprehensive Security Assessment
The security maturity of Let's Encrypt is high, with enforced HTTPS, domain registration protections, and no visible vulnerabilities or sensitive data leaks. The lack of DNSSEC is a minor gap that could be addressed to improve DNS security. The absence of explicit security policy documentation and incident response contacts suggests room for improvement in transparency and readiness. Privacy practices are strong, with GDPR compliance and a comprehensive privacy policy. No tracking or advertising scripts were detected, minimizing privacy risks. Overall, the security posture supports the organization's mission and user trust but could benefit from formalized vulnerability disclosure and incident response mechanisms.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC on the domain to enhance DNS security and integrity.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Internet Security Research Group
Let's Encrypt is a nonprofit Certificate Authority providing free, automated TLS certificates to enable HTTPS encryption for websites worldwide.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- Domain status includes clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited
- No exposed sensitive data in HTML
- Use of Cloudflare for DNS and registrar
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
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 Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements
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 vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
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
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 68 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
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
Domain Registration Details
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
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings