Is sizzlejs.com Safe? Security Analysis for jQuery
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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
The website is a GitHub-hosted wiki page for the jQuery Sizzle project, a widely used open source JavaScript selector engine. It serves developers and software engineers interested in JavaScript and front-end development. The project is well-established with a domain age dating back to 2007, hosted on GitHub, and enjoys a strong community presence as indicated by its star and fork counts. The business model revolves around open source collaboration and code sharing rather than direct commercial services. Technically, the site leverages modern web technologies including React and GitHub's Primer CSS framework, ensuring good performance, mobile optimization, and accessibility. Hosting on GitHub provides robust infrastructure and excellent SSL/TLS security. However, DNSSEC is not enabled, and explicit security headers are not visible in the provided data, suggesting minor areas for improvement. From a security perspective, the site benefits from GitHub's platform security and domain registration protections but lacks explicit published security policies, vulnerability disclosure mechanisms, or incident response contacts. Privacy compliance is minimal with no visible privacy or cookie policies on the wiki page, which is common for GitHub-hosted project pages but represents a compliance gap. Overall, the site is trustworthy, professional, and safe for general audiences, with no adult or questionable content. The main risks relate to privacy policy absence and lack of explicit security documentation. Strategic recommendations include publishing privacy and cookie policies, enabling DNSSEC, and providing security and incident response information to enhance trust and compliance.
Detected Technologies
8 urgent findings need attention
8 high
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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
4 findings
75/100
GDPR Compliance
2 findings
73/100
NIS2 Compliance
9 findings
2/100
Email Security
4 findings
80/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The jQuery Sizzle project is positioned as a key open source technology within the JavaScript ecosystem, maintained under the jQuery organization on GitHub. Its competitive advantage lies in its longevity, community support, and integration with jQuery and other frameworks. The business model is community-driven open source development, with indirect revenue streams likely through GitHub sponsorships and related services. The target customers are developers and organizations using JavaScript for web development. Growth indicators include high star and fork counts and active issue and pull request management. The project benefits from GitHub's ecosystem and partnerships but does not have direct commercial subsidiaries or partners listed on this page.
Security Posture Analysis
Comprehensive Security Assessment
The security posture is solid due to GitHub's platform protections, HTTPS enforcement, and domain registration safeguards. However, the absence of DNSSEC and explicit security headers reduces defense in depth. No vulnerabilities or exposed sensitive data were detected in the content. The lack of published security policies and incident response contacts limits transparency and preparedness. Compliance with GDPR and other regulations is unclear due to missing privacy and cookie policies. The site does not appear to collect personal data directly on this wiki page, reducing immediate privacy risks. Overall, security maturity is moderate with room for improvement in documentation and DNS security.
Strategic Recommendations
Priority Actions for Security Improvement
Publish a clear and comprehensive privacy policy and cookie policy on the project or organization website.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
jQuery
A sizzlin' hot selector engine. Contribute to jquery/sizzle development by creating an account on GitHub.
good
consistent
Technical Stack
fast
good
good
good
Security Assessment
- HTTPS enforced via GitHub
- Domain status includes clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a GitHub-hosted open source project wiki for the jQuery Sizzle selector engine.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Weak X-XSS-Protection configuration
LOWCurrent value: "0"
Weak Referrer-Policy configuration
LOWCurrent value: "no-referrer-when-downgrade"
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 Cookie Policy found
HIGHGDPR requires clear information about cookie usage
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
Critical sector without clear security compliance
HIGHDetected sectors: energy, transport, banking, health, digital
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
Complex SPF record
LOWToo many include statements can cause lookup limits
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
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Mixed Content Detected
MEDIUM9 resources loaded over insecure HTTP
Partial SSL/TLS Assessment
LOWCompleted 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
MEDIUMDNSSEC is not configured for this domain
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
Service Exposed: SSH
MEDIUMPort 22 (SSH) is publicly accessible - SSH - Secure but can be brute-forced
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🔧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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