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Security report for sanmianfan.com

枣庄市三立广告设备有限公司 · Manufacturing · China

Medium risk. 7 critical or high findings in Email security, Security headers and 2 other checks.

Security score

50/100

Risk levelMedium

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

枣庄市三立广告设备有限公司 is a well-established Chinese manufacturer specializing in indoor and outdoor three-sided flipping advertising boards and LED display screens. Founded in 2000, the company operates a large manufacturing facility and offers a range of advertising products including steel structures and high-pole advertising towers. The website reflects a professional business with a clear focus on manufacturing and installation services for outdoor advertising equipment. Technically, the website uses standard web technologies with integration of Chinese analytics and advertising platforms, but lacks advanced security headers and privacy compliance documentation. The security posture is moderate with HTTPS enabled but missing key security headers and incident response information. The WHOIS data is missing, which raises concerns about domain registration transparency, although the website content and business claims appear legitimate. Overall, the website is functional and informative but would benefit from improved privacy compliance and enhanced security practices.

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

7 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 sanmianfan.com

This scan found 25 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
85
Security headers
25
Email security
60
DNS health
60
Network security
20
GDPR outside view
50
Average
50

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 company holds a strong regional position in the outdoor advertising manufacturing sector in China, targeting businesses requiring large-scale advertising installations. Their business model is manufacturing and direct sales, supported by a large factory and significant investment. The website content and product offerings indicate a mature business with a focus on quality and customization. The presence of multiple related domains and service partners suggests an established ecosystem. However, the lack of visible certifications or security policies may impact trust with international clients. Growth potential exists through digital marketing improvements and enhanced compliance.

Security posture

The website demonstrates basic security hygiene with HTTPS enabled and no visible sensitive data exposure. However, the absence of security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces protection against common web attacks. No incident response or vulnerability disclosure information is provided, limiting transparency. The use of multiple third-party scripts increases the attack surface and necessitates regular security audits. The missing WHOIS data and lack of privacy policies indicate compliance gaps that should be addressed to meet GDPR and other regulations.

Recommendations

  1. Implement comprehensive privacy and cookie policies to improve legal compliance and user trust.
  2. Add security headers (CSP, X-Frame-Options, X-Content-Type-Options) to enhance protection against web vulnerabilities.
  3. Publish incident response and vulnerability disclosure information to improve transparency and security posture.
  4. Improve mobile optimization and accessibility to enhance user experience across devices.
  5. Verify and update WHOIS registration information to ensure domain legitimacy and trustworthiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
枣庄市三立广告设备有限公司
Description
山东三立户外广告牌制作公司，设计生产大型弧形楼顶LED三面翻广告牌价格，厂家定做安装室内三面翻外墙体广告机，擎天单立柱三面翻高炮广告塔钢结构工程项目案例。公司成立于2000年，厂区占地100亩，投资上亿元，集研发、生产、销售为一体的专业广告设备制造商。
Key services
三面翻广告牌制作, LED两面翻屏制作, 广告牌钢结构制作, 高炮广告牌制作
Content quality
good
Branding
moderate

Technology

Stack
HTML5, CSS3, JavaScript, Baidu Analytics, 360 Union Ads, Qihoo 360 tracking, Baidu Push, Qihoo Passport JS
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • No visible exposed sensitive data

Analytics and tracking

Services
Baidu Analytics, Qihoo 360 Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Ad networks
360 Union
Tracking pixels
Baidu Analytics, Qihoo 360
Marketing tools
Baidu Push, Qihoo Passport JS
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content in Chinese language.
  2. No privacy or cookie policies found, indicating compliance gaps.
  3. No security policies or incident response info present.
  4. Contact information is prominently displayed with phone numbers and physical address.
  5. Website uses multiple third-party analytics and advertising scripts.
  6. No forms detected on the homepage or main content for data collection.
  7. No social media links found.
  8. WHOIS data is missing, indicating possible privacy protection or new domain.
  9. Website content is focused on manufacturing and installation of outdoor advertising equipment.
  10. No adult or questionable content detected.
Technical notes

Notes

The website is built using standard HTML, CSS, and JavaScript technologies, integrating Chinese analytics and advertising services such as Baidu Analytics and 360 Union Ads. The site loads moderately fast but could improve mobile responsiveness and accessibility features. No CMS or advanced frameworks were detected, indicating a custom or static site approach. The presence of multiple external scripts increases complexity and potential security risks. SEO is well addressed with meta tags and structured navigation. Hosting provider details are not discernible from the data provided.
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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