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Is docin.com a Scam? Security Check Results - 豆丁世纪(北京)网络技术有限公司 Reviews

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Is docin.com Safe? Security Analysis for 豆丁世纪(北京)网络技术有限公司

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

EducationChinalarge
JavaScriptjQueryLodashGoogle AnalyticsGoogle Tag Manager
Analyzed 8/4/2025Completed 3:46:49 AM
55
Security Score
MEDIUM RISK

AI Summary

Docin.com (豆丁网) is a well-established Chinese C2C document sharing platform operated by 豆丁世纪(北京)网络技术有限公司. It offers a vast library of over a billion documents spanning business, education, research reports, academic papers, and more, targeting Chinese-speaking users globally. The platform supports document upload, search, subscription to interest tags, and mobile app synchronization, positioning itself as a comprehensive knowledge sharing and reading ecosystem. The website demonstrates a mature digital infrastructure with modern JavaScript libraries and analytics tools, and it provides multiple login options including OAuth integrations with popular Chinese social platforms. Security posture is solid with HTTPS enforcement and CAPTCHA on login forms, though some security headers and explicit privacy compliance mechanisms like cookie consent banners are missing. The absence of WHOIS data is a notable anomaly but does not detract significantly from the platform's evident legitimacy and trust signals. Overall, Docin.com is a professional, content-rich platform with a strong market position in the Chinese education and document sharing sector.

Detected Technologies

JavaScriptjQueryLodashGoogle AnalyticsGoogle Tag Manager

🧠AI Business Intelligence

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

Business Intelligence

Market & Strategic Analysis

Docin.com operates in the Education and Media sectors, serving a large user base interested in document sharing and reading. Its business model is primarily C2C with freemium and paid content offerings. The platform's extensive content categories and multiple branded subdomains indicate a diversified service portfolio. The company maintains active social media presence and official certifications such as ICP licenses, enhancing credibility. The lack of WHOIS transparency is a risk factor but is mitigated by strong on-site trust indicators. The platform's partnerships and subsidiaries focus on niche content verticals like architecture, medical, and community engagement, supporting a broad ecosystem. Revenue streams likely include paid document access, subscriptions, and enterprise tools. Growth potential is supported by mobile app integration and content subscription features.

Extracted Contact Information

Marketing Intelligence Data

Phone Numbers (1)

180*******

Security Posture Analysis

Comprehensive Security Assessment

The website enforces HTTPS and uses CAPTCHA on login forms, supporting secure user authentication. Multiple OAuth login options enhance user convenience and security. However, no explicit security headers (e.g., CSP, HSTS) were detected in the provided data, and no published security policy or incident response information is available. There is no evidence of a vulnerability disclosure program or security.txt file. Privacy compliance is partial, with a privacy policy present but no cookie consent mechanism detected. Overall, the security posture is moderate with room for improvement in headers, transparency, and compliance mechanisms.

Strategic Recommendations

Priority Actions for Security Improvement

1

Implement and enforce security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options to enhance protection against common web attacks.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

豆丁世纪(北京)网络技术有限公司

Description:

豆丁网是面向全球的中文社会化阅读分享平台,拥有商业,教育,研究报告,行业资料,学术论文,认证考试,星座,心理学等数亿实用文档和书刊杂志。

Key Services:
Document sharingDocument searchSubscription to interest tagsMobile apps for reading and synchronizationEnterprise toolsDocument upload
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
JavaScriptjQueryLodashGoogle AnalyticsGoogle Tag Manager
Platforms:
WebMobile apps (iOS and Android)
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
75/100
Best Practices:
  • HTTPS enforced
  • Login forms with CAPTCHA
  • Multiple login options including OAuth (WeChat, QQ, Weibo, Alipay)

Analytics & Tracking

Services:
Google AnalyticsGoogle Tag Manager
Tracking Level:moderate
Privacy Compliance:basic

Advertising & Marketing

Transparency Level:basic

Website Quality Assessment

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

Key Observations

1

Website is a mature, large-scale Chinese document sharing 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

35/100
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

Third-party services without privacy policy

HIGH

Detected services: Google Analytics

GDPR Compliance Analysis

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

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

2/100
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 business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

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

Critical sector without clear security compliance

HIGH

Detected sectors: transport, digital

📧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 redirect=_spf.mailhostbox.com
DNS Lookups:0/10

🏆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

13 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
22 years(mature)
Expiry Risk
none(2869 days)
Protection Level
basicDNSSEC OFF

DNS Records

A Records:221.122.132.138
Name Servers:
ns5.domainmonger.com
ns6.domainmonger.com
ns7.domainmonger.com
ns8.domainmonger.com
MX Records:
5: alt2.aspmx.l.google.com
1: aspmx.l.google.com
5: alt1.aspmx.l.google.com
10: aspmx2.googlemail.com
10: aspmx3.googlemail.com
SOA:Serial: 2025011601, TTL: 38400s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:46ms

SPF Analysis

SPF Record:
v=spf1 redirect=_spf.mailhostbox.com

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 a modern JavaScript stack including jQuery and Lodash, with integration of Google Analytics and Google Tag Manager for tracking. The site is mobile optimized with responsive design and supports multiple platforms including web and mobile apps. Performance is moderate with lazy loading of images and asynchronous script loading. No CMS was explicitly detected. Hosting provider details are not available. The site structure is clear with well-organized navigation and categorized content. Technical debt appears low, but security header implementation and privacy compliance could be improved to reduce risk.
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