Is highlightjs.org Safe? Security Analysis for Contact Privacy Inc. Customer 0164357247
https://highlightjs.orgCheck if highlightjs.org is a scam or legitimate. Free security scan and reviews.
Below Technology avg (72)
GDPR-aligned
Data handling
EU
Hosting region
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Highlight.js is a well-established open source project founded in 2012, providing a popular JavaScript syntax highlighting library supporting 192 languages and 512 themes. The website targets developers and technical users, offering comprehensive usage instructions and trusted by major platforms such as Stack Overflow and Discord. The business model centers on open source software distribution with community contributions and GitHub presence. Technically, the site uses modern web technologies including Next.js, Node.js, and Deno, hosted on Netlify, delivering fast and mobile-optimized performance with good SEO and accessibility features. Security posture is solid with HTTPS enforced and domain transfer protections, though explicit security headers and formal privacy/cookie policies are absent. The presence of a dedicated security contact email indicates some incident response readiness. Overall, the site is professional, trustworthy, and technically mature but could improve privacy compliance and security best practices.
Detected Technologies
13 urgent findings need attention
1 critical · 12 high
- + 5 more findings in the full report below
Keep highlightjs.org 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
40/100
GDPR Compliance
4 findings
35/100
NIS2 Compliance
8 findings
12/100
Email Security
5 findings
60/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Highlight.js occupies a strong position in the developer tools market as a widely adopted syntax highlighter. Its open source nature and GitHub ecosystem foster community engagement and continuous improvement. The project benefits from endorsements by major developer platforms, enhancing credibility. Revenue streams are likely indirect, possibly through sponsorships or donations. The target audience is primarily software developers and technical professionals. The project maintains a lean organizational structure with privacy-protected WHOIS registration, typical for open source initiatives. Strategic partnerships or subsidiaries are not evident. The website content is high quality, consistent, and aligned with the brand identity, supporting effective user engagement and trust.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a moderate to strong security posture with HTTPS enabled and domain status flags preventing unauthorized transfers or updates. However, the absence of DNSSEC and explicit security headers such as Content Security Policy or HSTS reduces defense-in-depth. No vulnerabilities or exposed sensitive data were detected in the content. The availability of a security contact email supports vulnerability disclosure and incident response. Privacy compliance is weak due to missing privacy and cookie policies. Overall, the security maturity is adequate for an open source project website but could be enhanced by adopting additional security best practices and formalizing privacy documentation.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
✨Observations
Comprehensive website and business-context analysis.
AI-Enhanced Website Analysis
Business Insights
Contact Privacy Inc. Customer 0164357247
The Internet's favorite JavaScript syntax highlighter supporting Node.js and the web.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced (implied by https URL)
- Domain status includes clientTransferProhibited and clientUpdateProhibited
- Security contact email provided
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a professional open source project site
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Frame-Options header
Prevents clickjacking attacks
Missing Content-Security-Policy header
Controls resources the browser is allowed to load
Missing X-XSS-Protection header
Legacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
Controls referrer information sent with requests
Missing Permissions-Policy header
Controls browser features and APIs
Sensitive data may be cached
Cache-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
GDPR requires a clear and accessible privacy policy
No Cookie Policy found
GDPR requires clear information about cookie usage
No Cookie Consent Banner found
GDPR requires explicit consent for non-essential cookies
Third-party services without privacy policy
Detected services: Cloudflare
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
NIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
NIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
NIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
NIS2 requires documented incident response and business continuity plans
No business continuity planning found
NIS2 emphasizes operational resilience and business continuity
No vulnerability reporting mechanism
Clear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
Consider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
Detected sectors: energy, transport, digital
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
DKIM adds cryptographic signatures to emails
No BIMI Record
BIMI displays brand logos in email clients
No MTA-STS Policy
MTA-STS enforces TLS for email delivery
No TLS-RPT Record
TLS-RPT provides reporting for email TLS issues
No email authentication configured
Domain is vulnerable to email spoofing
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
Server supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
OCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
Certificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
SSL certificate expires in 36 days
Weak SSL Key Length
SSL certificate uses 256-bit key, which is considered weak
Partial SSL/TLS Assessment
Completed 3 of 4 security checks due to time constraints
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
DNSSEC is not configured for this domain
CAA Records Not Configured
Certificate Authority Authorization (CAA) records not found
Domain Delete Lock Not Enabled
Domain can be deleted without additional verification
No DMARC Record
DMARC policy not configured
Domain Registration Details
- •Privacy/proxy registration detected
DNS Records
DNSSEC Status
DNS Performance
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
No unnecessary services detected on common risky ports
How does highlightjs.org compare?
See how highlightjs.org 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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