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Security report for 05sun.com

Technology · China

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

60/100

Risk levelMedium

0–100, higher is better. How it is calculated

The website www.05sun.net operates as a Chinese software and game download portal, established since 2005 according to its content. It offers a wide range of green software, games, office applications, cracked software, and technical articles targeting software enthusiasts and computer professionals in China. The platform maintains a moderate market position as a trusted source for software downloads domestically. Technically, the site uses standard web technologies including HTML5, CSS, JavaScript with jQuery, and integrates Baidu analytics for user tracking. It supports both PC and mobile platforms with a dedicated mobile subdomain. Security posture is moderate with HTTPS assumed but lacking explicit security headers and privacy compliance documentation. The absence of WHOIS data for the domain raises concerns about domain registration legitimacy, impacting overall trust. No contact or privacy policies are found, limiting compliance with data protection regulations. Overall, the site provides valuable content but requires improvements in security and compliance to enhance trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

8 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

Need hands-on remediation? Email guard@offseq.com

Keep watching 05sun.com

This scan found 26 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
42
Security headers
30
Email security
60
DNS health
75
Network security
100
GDPR outside view
50
Average
60

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The business model centers on providing free downloads of software and games, supported likely by advertising and affiliate links. The target audience includes software users and IT professionals in China. The site demonstrates consistent content updates and a broad catalog, indicating active management and user engagement. However, the lack of visible business contact information and privacy policies may hinder user trust and regulatory compliance. The domain's WHOIS inconsistency suggests potential risks in ownership transparency. The platform's reliance on Baidu analytics aligns with its Chinese market focus. Strategic partnerships or subsidiaries are not evident from the data. Growth potential exists if compliance and security practices are enhanced.

Security posture

The website employs HTTPS but lacks critical security headers such as Content-Security-Policy, HSTS, and X-Frame-Options, which are essential for mitigating common web attacks. No privacy or cookie policies are present, indicating poor compliance with GDPR or similar regulations. The absence of contact information for incident response or security reporting further weakens its security posture. The use of third-party analytics introduces moderate user tracking without clear privacy disclosures. No vulnerabilities or malware indicators were detected in the content. Overall, the security maturity is basic and requires significant enhancements to protect users and data effectively.

Recommendations

  1. Implement comprehensive privacy and cookie policies to comply with data protection regulations.
  2. Add security headers including Content-Security-Policy, HSTS, X-Frame-Options, and X-Content-Type-Options.
  3. Clarify domain registration details and ensure WHOIS information is accurate and publicly available.
  4. Provide clear contact information including security incident response channels.
  5. Enhance transparency about data collection and user tracking practices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
零度软件园是国内有名的老牌绿色软件下载基地，成立于2005年。每天更新大量的绿色软件，免费游戏，办公软件，破解软件和技术文章等。是软件爱好者和计算机从业人员获取软件资源的最佳站点！
Key services
green software downloads, game downloads, office software, cracked software, technical articles
Content quality
good
Branding
moderate

Technology

Stack
HTML5, CSS, JavaScript, jQuery 3.4.1, Baidu Analytics, Baidu Link Submit
Platforms
PC, Mobile (redirect to m.05sun.net)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
60/100
Good practices seen
  • HTTPS usage assumed (URL is https)
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Baidu Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Tracking pixels
Baidu Analytics
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is a Chinese software and game download portal with extensive content.
  2. No visible contact emails or phone numbers for business or support.
  3. No privacy, cookie, or terms of service policies found on main page.
  4. Uses Baidu analytics and tracking scripts.
  5. No explicit security headers detected in HTML content.
  6. WHOIS data unavailable or domain not found in registry.
  7. Mobile version available at m.05sun.net.
  8. Content is safe and suitable for general audiences.
Technical notes

Notes

The website is built on a traditional web stack with HTML5, CSS, and JavaScript, leveraging jQuery 3.4.1. It integrates Baidu analytics scripts for tracking and uses a mobile subdomain for responsive design. The site structure is well-organized with clear navigation and categorized content. Performance is moderate with no explicit indicators of optimization or CDN usage. Accessibility features are basic, and SEO is supported by meta tags and structured navigation. The absence of a detected CMS suggests a custom or proprietary platform. Technical risks include missing security headers and unclear hosting provider information, which could impact resilience and security.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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