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Security report for 51serive.com

博久网 · Technology · China

High risk. 8 critical or high findings in Email security, Network security and 3 other checks.

Security score

45/100

Risk levelHigh

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

博久网 is a Chinese web design and development company specializing in website construction, design, and marketing services primarily targeting enterprises, government units, and brand clients in China. The company has been operating since 2012 and positions itself as a professional provider with over 10 years of experience and a strong client base including government and listed companies. The website content is rich, professionally designed, and well-structured, offering a variety of web solutions such as corporate websites, brand sites, e-commerce platforms, mobile sites, and marketing-oriented websites. Technically, the website employs common JavaScript libraries like jQuery and ResponsiveSlides for UI enhancements and is moderately optimized for mobile devices. However, there is no visible enforcement of HTTPS or advanced security headers, and DNSSEC is not enabled, indicating room for improvement in security posture. The site lacks privacy and cookie policies, which may pose compliance risks especially under GDPR or similar regulations. From a security perspective, the domain is registered with a reputable Chinese network company and shows no suspicious patterns. The domain age aligns with the company's claimed experience, and the domain status clientTransferProhibited adds a layer of protection. However, the absence of security headers and HTTPS enforcement reduces the overall security score. No incident response or vulnerability disclosure information is provided. Overall, the website is professional and trustworthy for its business domain but should enhance its security and privacy compliance measures to improve trust and regulatory adherence. Strategic recommendations include implementing HTTPS with HSTS, adding security headers, publishing privacy and cookie policies, and conducting regular security audits.

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. 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 51serive.com

This scan found 27 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

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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
70
Network security
0
GDPR outside view
50
Average
45

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

Technical appendix

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

Business context

Business profile

博久网 operates in the technology sector, focusing on web design and development services. It targets medium to large enterprises, government agencies, and brand clients primarily in China. The company leverages its decade-long experience and a broad portfolio of clients to maintain a competitive market position. Its business model centers on providing customized website solutions including corporate, brand, e-commerce, and mobile websites, supplemented by marketing services such as SEO and soft article marketing. The company maintains partnerships with various related service providers as indicated by external linked domains. Growth indicators include a large client base and multiple government and listed company endorsements. The company’s operations appear stable with a clear focus on quality and customer service.

Security posture

The current security posture of the website is moderate but with notable gaps. The domain is registered with a legitimate registrar and has clientTransferProhibited status, which is positive. However, the lack of DNSSEC, absence of HTTPS enforcement visible in the HTML content, and missing security headers such as Content-Security-Policy and X-Frame-Options reduce the security maturity. No visible incident response or vulnerability disclosure mechanisms are present. The website does not provide privacy or cookie policies, which is a compliance risk. No forms or input fields are detected on the homepage, reducing immediate risk of input-based vulnerabilities. Overall, the site should prioritize implementing HTTPS, security headers, and privacy compliance to strengthen its security posture.

Recommendations

  1. Implement HTTPS with HSTS to secure all communications and improve user trust.
  2. Enable DNSSEC for the domain to protect against DNS spoofing and improve DNS security.
  3. Add essential security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Publish comprehensive privacy and cookie policies to comply with GDPR and other privacy regulations.
  5. Establish an incident response contact and vulnerability disclosure policy to enhance security transparency and readiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
博久网
Description
博久网专注于厦门网站建设、网站设计、网站制作及网站推广，提供企业网站建设、品牌网站建设、商城网站建设、手机网站建设、营销型网站建设等服务。
Key services
企业网站建设, 品牌网站建设, 商城网站建设, 手机网站建设, 营销型网站建设, 响应式网站建设, 网站改版, 软文营销
Content quality
good
Branding
consistent

Technology

Stack
jQuery, ResponsiveSlides.js, SuperSlide, Waypoints.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
40/100
Good practices seen
  • Domain status clientTransferProhibited

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Tracking pixels
Baidu linksubmit push.js
Marketing tools
Baidu linksubmit push.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 potential compliance gaps.
  3. Contact information is clearly presented with phone, email, QQ, and physical address.
  4. No forms detected on the homepage; no data collection forms visible.
  5. Website uses common JavaScript libraries and plugins for UI and slideshows.
  6. No visible social media links except QQ chat links.
  7. No security headers or HTTPS enforcement visible in HTML content; SSL status unknown.
  8. WHOIS data shows domain is stable and registered to a Chinese network company.
  9. Website content is professional and focused on web design and marketing services.
  10. No adult or questionable content detected; content is safe for general audiences.
Technical notes

Notes

The website uses a traditional HTML structure with common JavaScript libraries including jQuery, ResponsiveSlides, SuperSlide, and Waypoints for animations and UI effects. The site is moderately optimized for mobile devices with a mobile redirect script and responsive design elements. SEO is addressed with meta tags for description and keywords. However, there is no visible CMS detected, suggesting a custom or static site. Hosting details are limited but the registrar is Foshan YiDong Network Co., LTD, a Chinese network provider. Performance is moderate with no explicit speed optimizations noted. Accessibility features are basic, with no ARIA roles or landmarks detected. The site lacks modern security features and privacy compliance mechanisms, indicating technical debt and areas for modernization.
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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