Is 51job.com Safe? Security Analysis for 前程无忧
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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
51job.com is a leading Chinese online job recruitment platform established in 1999, offering comprehensive human resource services including job listings, talent recruitment, training, and employer advertising. The website targets job seekers and employers across China, providing a broad range of employment-related services. The platform is well-established with a strong market position and a large user base. Technically, the site employs modern JavaScript frameworks, including Vue.js, and uses ES6 modules and polyfills to ensure compatibility. Hosting is provided by Alibaba Cloud, a reputable provider, and the site uses HTTPS with good SSL configuration. Security headers are present, though DNSSEC is not enabled, representing a minor security gap. Privacy and terms of service policies are clearly linked and comprehensive, though no cookie consent mechanism was detected, which may impact privacy compliance. Advertising is transparent and well integrated, with Baidu Analytics used for tracking. Overall, the site is professional, trustworthy, and technically sound, with minor areas for improvement in privacy compliance and DNS security.
Detected Technologies
11 urgent findings need attention
11 high
- + 3 more findings in the full report below
Keep 51job.com 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
35/100
GDPR Compliance
4 findings
53/100
NIS2 Compliance
9 findings
2/100
Email Security
4 findings
70/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
51job.com operates in the technology and education sectors, focusing on online recruitment and HR services. Its business model revolves around providing a platform for job seekers and employers to connect, supplemented by advertising and training services. The company has a long history and a strong brand presence in China. The website features numerous advertisements from reputable companies, indicating a robust partnership ecosystem. The platform's extensive job listings and specialized sections for campus recruitment and corporate hiring demonstrate a diversified service offering. The site’s market position as a leading recruitment portal in China is supported by its domain age and consistent branding. Growth indicators include active advertising campaigns and partnerships with major corporations. The platform’s business intelligence suggests a mature, stable operation with a focus on expanding digital HR services.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a mature security posture with HTTPS enforced and good SSL configuration. Security headers are present, contributing to protection against common web vulnerabilities. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. However, the absence of DNSSEC reduces DNS security robustness. There is no publicly available security policy or incident response information, which could hinder transparency and user trust in security matters. The lack of a vulnerability disclosure program or security.txt file suggests limited formal channels for reporting security issues. Overall, the security posture is strong but could be enhanced by adopting DNSSEC, publishing security policies, and establishing vulnerability disclosure mechanisms.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC to improve DNS security and prevent spoofing attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
前程无忧
前程无忧人才网面向全国,提供2025准确的招聘网站信息,为企业和求职者提供人才招聘、求职、找工作、培训等在内的全方位的人力资源服务,更多求职找工作信息尽在前程无忧!
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- No DNSSEC (not enabled)
- No exposed sensitive data found in HTML
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a mature, professional job recruitment platform targeting the Chinese market.
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🛡️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 Content-Security-Policy header
HIGHControls resources the browser is allowed to load
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: 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
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
SPF 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
Mixed Content Detected
MEDIUM16 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
Domain Transfer Lock Not Enabled
MEDIUMDomain can be transferred without authorization
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
No DMARC Record
MEDIUMDMARC policy not configured
Domain Registration Details
- •No domain protection locks enabled
DNS Records
DNSSEC Status
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 51job.com compare?
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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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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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