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Is zlketang.com a Scam? Security Check Results - 之了课堂 Reviews

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Is zlketang.com Safe? Security Analysis for 之了课堂

Check if zlketang.com is a scam or legitimate. Free security scan and reviews.

EducationChinamedium
JavaScriptCSSHTML5
Analyzed 9/4/2025Completed 11:27:03 AM
58
Security Score
MEDIUM RISK

AI Summary

之了课堂 is a Chinese online education platform specializing in accounting professional training, offering courses such as junior and intermediate accounting certifications, CPA, tax advisor, and CMA exam preparation. The website presents itself as a professional and focused training provider in the accounting education sector, targeting students and professionals seeking certification and practical skills. Technically, the site uses modern web technologies including Vue.js and integrates Baidu Analytics for user tracking. The site is moderately optimized for performance and mobile devices, with good SEO practices but basic accessibility features. Security-wise, the site uses HTTPS and has implemented client-side error reporting with rate limiting, but lacks visible security headers and explicit privacy or cookie policies, which are important for compliance and user trust. The absence of WHOIS data for the domain raises concerns about registration transparency, although the website content appears legitimate and professional. Overall, the site is functional and relevant for its target audience but would benefit from enhanced privacy compliance and security best practices.

Detected Technologies

JavaScriptCSSHTML5

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

The platform operates in the education sector, specifically focusing on accounting professional training in China. It offers a range of certification preparation courses, positioning itself as a specialized niche provider. The business model is primarily online course delivery, targeting accounting students and professionals. The use of Baidu Analytics indicates a focus on the Chinese market. The lack of visible contact information and privacy policies may impact user trust and regulatory compliance. No evident partnerships or subsidiaries were identified from the website content. The platform appears to be medium-sized with consistent branding and good content quality, aiming to capture a segment of the professional education market in China.

Security Posture Analysis

Comprehensive Security Assessment

The website employs HTTPS, ensuring encrypted communication. It has implemented client-side error reporting with rate limiting to avoid flooding the server with error logs. However, it lacks important security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which are recommended to mitigate common web vulnerabilities. No explicit privacy or cookie policies were found, which is a compliance gap especially under GDPR and similar regulations. No contact channels for security incidents or vulnerability disclosures are provided. The absence of WHOIS data reduces transparency and trust. Overall, the security posture is moderate but requires improvements in headers, privacy compliance, and incident response readiness.

Strategic Recommendations

Priority Actions for Security Improvement

1

Implement and publish comprehensive privacy and cookie policies with user consent mechanisms to comply with data protection regulations.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

之了课堂

Description:

之了课堂是专注于会计职业教育培训的会计网校,提供初级会计职称、中级会计职称、注册会计师、税务师、中级经济师、CMA考试、会计实操等培训服务,学会计就上之了课堂。

Key Services:
初级会计职称培训中级会计职称培训注册会计师培训税务师培训中级经济师培训CMA考试培训会计实操培训
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
JavaScriptCSSHTML5
Performance:

moderate

Mobile:

basic

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
60/100
Best Practices:
  • Error reporting with rate limiting
  • Use of HTTPS (implied by canonical URL https://)

Analytics & Tracking

Services:
Baidu Analytics
Tracking Level:moderate
Privacy Compliance:poor

Advertising & Marketing

Tracking Pixels:
Baidu Analytics
Transparency Level:basic

Website Quality Assessment

Design Quality:good
User Experience:good
Content Relevance:good
Navigation Clarity:good
Professionalism:good
Trustworthiness:moderate

Key Observations

1

Website is a professional Chinese accounting education platform

🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

15/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

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

50/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

GDPR Compliance Analysis

Privacy Policy0% confidence
Cookie Policy0% confidence
Contact Information Found90% confidence
phone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

25/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Email Security

SPF, DKIM, and DMARC validation

70/100
Score

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
SPF Details
Record:
v=spf1 include:spf.qiye.aliyun.com -all
DNS Lookups:1/10
Policy:-all

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

67/100
Score

Weak Protocols Supported

HIGH

Server supports weak protocols: TLSv1.1

OCSP Stapling Not Enabled

LOW

OCSP stapling improves performance and privacy

Certificate Transparency Not Implemented

LOW

Certificate is not logged in Certificate Transparency logs

Mixed Content Detected

MEDIUM

7 resources loaded over insecure HTTP

Partial SSL/TLS Assessment

LOW

Completed 3 of 4 security checks due to time constraints

Protocol Support

TLSv1.3TLSv1.2TLSv1.1

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

70/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

No DMARC Record

MEDIUM

DMARC policy not configured

Domain Registration Details

Domain Age
9 years(mature)
Expiry Risk
none(719 days)
Protection Level
moderateDNSSEC OFF

DNS Records

A Records:123.56.49.167
Name Servers:
vip1.alidns.com
vip2.alidns.com
MX Records:
10: mxw.mxhichina.com
5: mxn.mxhichina.com
SOA:Serial: 2025080107, TTL: 600s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:87ms

SPF Analysis

SPF Record:
v=spf1 include:spf.qiye.aliyun.com -all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website uses modern front-end technologies, likely Vue.js, with multiple CSS files and JavaScript for dynamic content and error reporting. It integrates Baidu Analytics for tracking user behavior. The site is served over HTTPS with canonical URLs properly set. Performance is moderate with some optimization potential. Accessibility features are basic, with some use of ARIA attributes implied but not fully evident. SEO is good with meta keywords and descriptions present. Hosting provider details are not explicitly found. No CMS is detected from the source. Error reporting includes rate limiting and filtering of invalid errors, indicating attention to client-side stability.
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