Is cfnotes.com Safe? Security Analysis for 码峰
https://cfnotes.comCheck if cfnotes.com is a scam or legitimate. Free security scan and reviews.
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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
The website www.cfnotes.com is a specialized technical blog named '码峰编程笔记' focused on programming languages such as C, C++, C#, Python, and Linux-related topics. It serves primarily programmers and coding enthusiasts, es… Unlock the full Guard report to read the complete analysis.
Detected Technologies
Keep cfnotes.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
Cancel anytime. Alerts sent to the contacts you choose. Unlock the full report to view historical timelines and alerts.
Security Headers
8 findings
25/100
GDPR Compliance
3 findings
50/100
NIS2 Compliance
9 findings
2/100
Email Security
5 findings
60/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.
Business Intelligence
Market & Strategic Analysis
The site operates as a content-driven knowledge sharing platform targeting programmers and developers, particularly those learning or working with C-family languages and Linux. Its business model appears to be based on content monetization through advertising (Google Adsense and JD Union) and affiliate marketing. The site maintains partnerships with various related technical and resource websites as indicated by extensive friendly links. Growth indicators include regular article updates and a moderate user engagement level. The platform leverages Tencent Cloud infrastructure and Halo CMS, indicating a focus on stability and scalability. Strategic observations suggest opportunities to enhance trust and compliance by publishing privacy and security policies and clarifying domain ownership.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a solid baseline security posture with enforced HTTPS and no exposed sensitive data in the HTML. However, it lacks several recommended security headers such as Content-Security-Policy and X-Frame-Options, which could improve protection against common web attacks. There is no evidence of a published security policy, incident response contact, or vulnerability disclosure program, which are important for mature security management. The use of third-party analytics and advertising scripts introduces moderate tracking, but no overt privacy compliance mechanisms are present. Overall, the security maturity is moderate with room for improvement in policy transparency and technical hardening.
Strategic Recommendations
Priority Actions for Security Improvement
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✨Observations
AI-powered comprehensive website and business analysis.
A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.
AI-Enhanced Website Analysis
Business Insights
码峰
码峰编程笔记，专注于整理分享C语言，C++，C#，Python, Shell等各类编程语言的编程笔记，编程经验，软件，网络开发遇到疑难问题的解决办法，Linux系统相关的各种技术问题的解决方法，行业前沿资讯等，收集整理各种优质的学习编程相关教程。
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- Secure search form with GET method and input length limit
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a technical blog focused on programming languages and software development.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.
Security Headers
HTTP security headers analysis
Weak Strict-Transport-Security configuration
LOWCurrent value: "max-age=15768000" Unlock the full report to read the complete fix.
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks Unlock the full report to read the complete fix.
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing Unlock the full report to read the complete fix.
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load Unlock the full report to read the complete fix.
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended) Unlock the full report to read the complete fix.
Missing Referrer-Policy header
LOWControls referrer information sent with requests Unlock the full report to read the complete fix.
Missing Permissions-Policy header
MEDIUMControls browser features and APIs Unlock the full report to read the complete fix.
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages Unlock the full report to read the complete fix.
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
Preview of GDPR checkpoints is visible. Unlock to reveal full evidence, policy excerpts, and DPIA guidance.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy Unlock the full report to read the complete fix.
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage Unlock the full report to read the complete fix.
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies Unlock the full report to read the complete fix.
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.
No security contact information
HIGHNIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.
Critical sector without clear security compliance
HIGHDetected sectors: energy, transport, digital Unlock the full report to read the complete fix.
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails Unlock the full report to read the complete fix.
No BIMI Record
LOWBIMI displays brand logos in email clients Unlock the full report to read the complete fix.
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery Unlock the full report to read the complete fix.
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues Unlock the full report to read the complete fix.
No email authentication configured
CRITICALDomain is vulnerable to email spoofing Unlock the full report to read the complete fix.
🏆SSL/TLS Security
Certificate validity and encryption analysis.
This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.
SSL/TLS Security
Certificate validity and encryption analysis
Unable to retrieve SSL certificate
CRITICALCould not establish secure connection to retrieve certificate information Unlock the full report to read the complete fix.
Mixed Content Detected
MEDIUM10 resources loaded over insecure HTTP Unlock the full report to read the complete fix.
OCSP Status
📊DNS Health
DNS configuration and security assessment.
Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain Unlock the full report to read the complete fix.
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found Unlock the full report to read the complete fix.
Domain Transfer Lock Not Enabled
MEDIUMDomain can be transferred without authorization Unlock the full report to read the complete fix.
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification Unlock the full report to read the complete fix.
No DMARC Record
MEDIUMDMARC policy not configured Unlock the full report to read the complete fix.
Domain Registration Details
- •No domain protection locks enabled
DNS Records
DNSSEC Status
DNS Performance
⚡Network Security
Port scanning and network exposure analysis.
See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.
Network Security
Port scanning and network exposure analysis
Service Exposed: SSH
MEDIUMPort 22 (SSH) is publicly accessible - SSH - Secure but can be brute-forced Unlock the full report to read the complete fix.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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