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Is 51dns.com a Scam? Security Check Results - 帝恩思 Reviews

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Is 51dns.com Safe? Security Analysis for 帝恩思

Check if 51dns.com is a scam or legitimate. Free security scan and reviews.

TechnologyChinamedium
JavaScriptCSSHTML5Baidu AnalyticsSwiper.js
Analyzed 8/2/2025Completed 3:27:29 AM
58
Security Score
MEDIUM RISK

AI Summary

The website www.51dns.com represents 帝恩思, a Chinese publicly listed company founded in 2012 specializing in digital security comprehensive services including DNS resolution, DNS hijacking protection, SSL certificates, and website monitoring. The company positions itself as a global leader in digital security solutions, targeting enterprises requiring robust online security. The website is professionally designed, mobile-optimized, and uses modern web technologies including Baidu Analytics for tracking. Security posture is good with HTTPS and SSL certificates in place, but lacks explicit security headers and privacy compliance disclosures. WHOIS data is missing, which raises concerns about domain registration transparency but does not negate the professional business presence. Overall, the website is trustworthy and functional but would benefit from enhanced privacy policies and clearer contact information.

Detected Technologies

JavaScriptCSSHTML5Baidu AnalyticsSwiper.js

🧠AI Business Intelligence

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

Business Intelligence

Market & Strategic Analysis

帝恩思 operates in the technology sector focusing on digital security services. It is a medium-sized enterprise publicly listed on the New Third Board in China, indicating a stable market position. The company offers a suite of security services including DNS and application security monitoring, targeting business clients. The business model is B2B with a focus on security infrastructure and monitoring solutions. The website content and branding are consistent, supporting the company’s market positioning. No direct partnerships or subsidiaries are identified from the website content. The use of Baidu Analytics suggests a focus on Chinese market analytics and user behavior tracking.

Extracted Contact Information

Marketing Intelligence Data

Email Addresses (1)

k*****@51dns.com

Company Registration

Legal Name:

帝恩思

Registration Number:

证券代码 837018

Security Posture Analysis

Comprehensive Security Assessment

The website employs HTTPS and SSL certificates, indicating encrypted communications. However, no explicit security headers such as Content-Security-Policy or X-Frame-Options were detected in the HTML content. No forms were found, reducing attack surface from input vectors. Privacy and cookie policies are absent, which is a compliance gap especially under GDPR. No vulnerability disclosures or incident response contacts are provided. The security score is moderate, with recommendations to implement security headers, publish privacy and cookie policies, and provide incident response contacts to improve trust and compliance.

Strategic Recommendations

Priority Actions for Security Improvement

1

Implement and publish comprehensive privacy and cookie policies with user consent mechanisms.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

帝恩思

Description:

帝恩思是 2012 年成立的新三板挂牌企业(证券代码 837018),致力成为全球知名数字安全综合服务商。帝恩思通过创新技术打造数字资产安全产品、应用安全监测和域名安全服务,保护在线业务免受网络威胁。优势包括数字资产安全服务、应用安全监测服务、域名安全服务,公司服务团队为众多企业提供数字安全解决方案。

Key Services:
digital asset security servicesapplication security monitoringdomain name security servicesfree DNS resolutioncloud DNS resolutionDNS hijacking protectionSSL certificateswebsite hijacking detectiondowntime monitoring
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
JavaScriptCSSHTML5Baidu AnalyticsSwiper.js
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
75/100
Best Practices:
  • HTTPS enforced
  • Use of SSL certificates
  • DNS hijacking protection services

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:high

Key Observations

1

Website is fully accessible with no blocking or WAF challenges.

🛡️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
emailphone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

17/100
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

📧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.mail.qq.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

9 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
23 years(mature)
Expiry Risk
low(191 days)
Protection Level
basicDNSSEC OFF

DNS Records

A Records:211.99.99.89
Name Servers:
m1.51dns.com
m2.51dns.com
MX Records:
5: mxbiz1.qq.com
10: mxbiz2.qq.com

DNSSEC Status

DNSSEC Not Enabled

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 standard web technologies including HTML5, CSS, and JavaScript with external libraries such as Swiper.js for UI components and Baidu Analytics for tracking. The site is mobile-optimized and loads with moderate performance. No CMS or hosting provider information was detected. The absence of security headers and privacy compliance features indicates areas for technical improvement. The domain WHOIS data is missing, which may indicate privacy protection or registration issues. Overall, the technical infrastructure supports the business needs but can be enhanced for security and compliance.
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