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Security report for diusong.com

江沪英语网 · Education · China

High risk. 9 critical or high findings in Email security, Network security and 3 other checks.

Security score

46/100

Risk levelHigh

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

江沪英语网 is a Chinese educational website focused on providing English learning resources, including oral English training, listening, vocabulary, grammar, phonetics, and exam preparation materials. The platform also lists English training institutions and courses, targeting Chinese learners seeking to improve their English skills. The website is relatively new, founded in 2023, and operates primarily in the Chinese language. Its market position is niche within the Chinese English education sector, offering free content and training institution directories to attract learners. Technically, the website uses Bootstrap and jQuery for its frontend framework and is hosted by Alibaba Cloud (HiChina). The site shows moderate performance and basic mobile optimization but lacks advanced accessibility features. SEO is basic with meta keywords and descriptions present. There is no evidence of a CMS, suggesting a custom-built platform. Security-wise, the site lacks visible HTTPS enforcement and security headers, and DNSSEC is not enabled, indicating room for improvement in security posture. From a security perspective, the absence of HTTPS and security headers reduces the site's security score. No privacy or cookie consent mechanisms are implemented despite having a privacy policy page, which may affect compliance with international privacy regulations. Contact information is limited but present, though the use of a generic QQ email address may reduce trust slightly. No incident response or vulnerability disclosure information is available. Overall, the website is functional and provides valuable educational content but requires significant improvements in security, privacy compliance, and technical modernization to enhance trustworthiness and protect user data. Strategic recommendations include implementing HTTPS, adding security headers, deploying cookie consent mechanisms, and improving privacy compliance to align with GDPR and other regulations.

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

9 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. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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';…

  4. 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

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

Keep watching diusong.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.

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Recommended

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

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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
62
Security headers
30
Email security
60
DNS health
75
Network security
0
GDPR outside view
50
Average
46

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 · found on this site
  • 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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention diusong.com, from OffSeq Breach.

No leaked records found

Breach holds no records for diusong.com right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

江沪英语网 operates as an educational content and service platform targeting Chinese English learners. Its business model revolves around providing free English learning materials and acting as a directory for English training institutions and courses. The site leverages partnerships with multiple training centers, as evidenced by numerous subsidiary subdomains. The platform's competitive advantage lies in its comprehensive English learning content tailored for the Chinese market and its aggregation of training providers. Revenue streams likely include advertising and referral fees from training institutions. The company is small-sized and relatively new, with no parent or subsidiary companies beyond the listed training sites. Growth indicators include regular content updates and expanding training institution listings. The partnership ecosystem is focused on education providers within China.

Security posture

The website's security maturity is low to moderate. Key vulnerabilities include lack of HTTPS enforcement, absence of security headers, and no DNSSEC implementation. There is no visible incident response or vulnerability disclosure policy, which limits preparedness for security incidents. Privacy compliance is minimal, with no cookie consent or GDPR indicators despite having a privacy policy. The use of a generic email address for contact reduces trust. No evidence of secure forms or input validation was found. These gaps expose the site to potential data interception and reduce user trust. Business impact includes reputational risk and possible non-compliance with privacy regulations.

Recommendations

  1. Implement HTTPS with a valid SSL/TLS certificate to secure data transmission.
  2. Enable DNSSEC to protect domain name resolution from spoofing.
  3. Add essential security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Deploy a cookie consent banner and update privacy policy to reflect GDPR and other privacy regulations compliance.
  5. Establish an incident response contact channel and publish a vulnerability disclosure policy to improve security transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
江沪英语网
Description
江沪英语网提供英语口语培训、英语听力、英语单词、英语语法、英语音标、新概念英语等免费英语学习资源和培训机构信息。
Key services
English learning articles and resources, English training institution directory, Training course listings
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap, jQuery
Frameworks
Bootstrap
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
40/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is an educational platform focused on English learning for Chinese users.
  2. Content is regularly updated with articles and training institution listings.
  3. No HTTPS or security headers information provided; likely missing or incomplete security configuration.
  4. No privacy or cookie consent banners detected despite presence of privacy policy page.
  5. Contact information is limited but present; email uses a generic QQ domain, which may reduce trust slightly.
  6. No social media links or security incident contacts found.
  7. No analytics or tracking scripts detected in provided HTML.
  8. Site uses Bootstrap and jQuery for frontend UI.
  9. ICP备案 number present indicating compliance with Chinese internet regulations.
Technical notes

Notes

The website uses a traditional frontend stack with Bootstrap and jQuery, indicating a standard but somewhat dated technology approach. The HTML structure is valid and includes meta tags for SEO, but lacks modern accessibility features. Hosting is provided by Alibaba Cloud, a reputable provider. Performance is moderate with basic mobile optimization. The site does not appear to use a popular CMS, suggesting custom development. There is no evidence of advanced analytics or tracking tools. Technical debt includes missing HTTPS, lack of security headers, and no cookie consent mechanisms. Modernization opportunities include adopting responsive design best practices, improving accessibility, and integrating security best practices to reduce technical risks.
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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