Is 51test.net Safe? Security Analysis for 北京无忧世纪科技有限公司
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AI Summary
无忧考网 is a well-established Chinese educational website founded in 2001, offering a comprehensive range of exam-related resources including news, past exam papers, essay samples, job recruitment, and study abroad information. It serves a large user base with over 8 million registered members and provides both free content and VIP membership services for enhanced access. The website is positioned as a trusted brand in the education sector with a strong focus on exam preparation and learning materials. Technically, the website employs standard web technologies such as jQuery and Baidu Analytics, with mobile optimization and a moderate performance profile. While HTTPS is enforced, the site lacks some advanced security headers and cookie consent mechanisms, indicating room for improvement in security and privacy compliance. The WHOIS data for the domain is unavailable, which raises some concerns about transparency but does not negate the site's evident legitimacy based on business licenses and operational history. From a security perspective, the site shows a generally good posture with secure forms and no visible vulnerabilities. However, the absence of explicit incident response contacts and vulnerability disclosure policies suggests that the security maturity could be enhanced. Overall, the site is safe for general audiences, with no adult or questionable content detected. Strategically, the site should focus on improving privacy compliance, implementing security headers, and clarifying domain registration details to strengthen trust and regulatory adherence.
Detected Technologies
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
无忧考网 operates in the education sector, targeting students and exam candidates across China. Its competitive advantage lies in its extensive content library, VIP membership model, and long-standing brand presence. Revenue streams likely include VIP subscriptions and advertising. The company maintains a broad partnership ecosystem evident from multiple subdomains and external analytics integrations. Growth indicators include a large registered user base and continuous content updates. The business model balances free access with premium paid services, catering to diverse user needs. Strategic observations highlight the importance of enhancing transparency and compliance to maintain market leadership.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a moderate security maturity level with HTTPS enforcement and secure user login mechanisms. However, the lack of security headers such as Content-Security-Policy and absence of a published vulnerability disclosure policy indicate gaps in defense-in-depth and incident management readiness. No exposed sensitive data or vulnerable libraries were detected, reducing immediate risk. Compliance with privacy regulations like GDPR is limited due to missing cookie consent mechanisms and privacy policy details. Incident response capabilities are not publicly documented, which could delay mitigation in case of security events. Overall, the security posture is adequate but requires targeted improvements to meet higher standards.
Strategic Recommendations
Priority Actions for Security Improvement
Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
北京无忧世纪科技有限公司
无忧考网专业提供考试资讯、真题题库、作文范文、求职招聘、出国留学等最新学习资源。
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- Secure login and registration forms
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with rich educational content.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
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 Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR
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: transport
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No SPF record found
HIGHSPF helps prevent email spoofing
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
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
No email authentication configured
CRITICALDomain is vulnerable to email spoofing
🏆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
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
Mixed Content Detected
MEDIUM1 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
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
Slow DNS Resolution
LOWDNS resolution took 1002ms (>1000ms)
No DMARC Record
MEDIUMDMARC policy not configured
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
LOWNo unnecessary services detected on common risky ports
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings