Is 51offer.com Safe? Security Analysis for 英国|澳洲|美国留学,出国留学 - 51offer让留学更简单
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Above Education avg (55)
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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
51offer.com is a well-established Chinese education platform specializing in study abroad services for countries including the UK, USA, Australia, New Zealand, Japan, Singapore, and Hong Kong. The platform offers a comprehensive suite of services such as free application assistance, professional consulting, visa processing, and educational content including guides and DIY tools. The business targets Chinese students and families seeking overseas education opportunities and maintains a medium-sized market presence with multiple offline centers across China. Technically, the website employs modern JavaScript frameworks like Vue.js and uses HTTPS for secure communications, though some legacy libraries like an older jQuery version are still in use. Security posture is moderate with room for improvement in security headers and DNSSEC implementation. Privacy compliance is weak due to the absence of explicit privacy and cookie policies or consent mechanisms. Overall, the site is professional, content-rich, and trustworthy but would benefit from enhanced security and privacy practices.
Detected Technologies
12 urgent findings need attention
12 high
- + 4 more findings in the full report below
Keep 51offer.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
8 findings
15/100
GDPR Compliance
4 findings
35/100
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
The company operates in the education sector, focusing on study abroad consulting and application services. It leverages a hybrid business model combining free application services with paid consulting and visa assistance. The platform has a strong foothold in the Chinese market with a decade-plus operational history, supported by multiple physical offices and a large user base. Strategic partnerships and sister domains support account management, events, and specialized services like art portfolios. The company’s competitive advantage lies in its comprehensive service offering, localized content, and offline presence. Growth indicators include active content updates, user engagement features, and integration of multiple countries and educational systems.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (2)
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a moderate security maturity level with HTTPS enabled and domain transfer protection in place. However, the lack of DNSSEC and absence of key security headers such as Content-Security-Policy and X-Frame-Options reduce its defense-in-depth. The use of an outdated jQuery version may expose the site to known vulnerabilities. No published security policies or incident response contacts were found, indicating potential gaps in compliance and readiness. Data exposure risks appear low based on the content analysis, but improvements in security best practices and transparency are recommended to enhance trust and resilience.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
51offer为一站式留学服务智能平台,拥有十年出国留学操作经验.51offer让留学更简单提供英国、美国以及澳洲等众多国家大学的免费留学申请,出国留学指南,DIY留学全攻略等.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enabled
- ClientTransferProhibited domain status
- No DNSSEC (not enabled)
- No exposed sensitive data found in HTML
- Use of error reporting scripts (BadJS)
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a mature, established education platform focused on study abroad services.
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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 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 Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
Third-party services without privacy policy
HIGHDetected services: Google Analytics
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, 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
Mixed Content Detected
MEDIUM10 resources loaded over insecure HTTP
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 Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
No DMARC Record
MEDIUMDMARC policy not configured
Domain Registration Details
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 51offer.com compare?
See how 51offer.com 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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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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