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Security report for 55links.com

55Links · Technology · China

High risk. 10 critical or high findings in Email security, Network security and 3 other checks.

Security score

42/100

Risk levelHigh

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

55Links is a Chinese online platform specializing in the buying and selling of website backlinks, including friend links, external links, and soft articles. It targets webmasters and digital marketers seeking to improve SEO and online presence through link trading. The platform offers categorized link listings, SEO metrics, and a service marketplace for marketing, development, and design services. The website demonstrates a moderate level of digital maturity with a functional design, basic mobile optimization, and integration of Baidu Analytics for user tracking. However, it lacks visible privacy and cookie policies, which indicates compliance gaps with data protection regulations. Security posture is moderate with HTTPS usage implied but no advanced security headers detected. The absence of WHOIS registrant data reduces domain trustworthiness, though the website content and services appear professional and legitimate. Overall, the site is functional and relevant for its target audience but requires improvements in privacy compliance and security transparency.

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

10 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 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 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';…

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

Keep watching 55links.com

This scan found 29 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
67
Security headers
15
Email security
60
DNS health
60
Network security
0
GDPR outside view
50
Average
42

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

The platform operates in the technology and e-commerce sectors, focusing on SEO and digital marketing services. Its business model revolves around facilitating link transactions and providing marketing-related services to webmasters primarily in China. The site positions itself as a professional-grade link trading platform with a niche market focus. Revenue streams likely include commissions or fees from link sales and service marketplace transactions. The presence of partner sites like ruanjie.cn suggests a collaborative ecosystem. Growth indicators include active listings and categorized offerings, but lack of detailed company info and WHOIS transparency may impact credibility. The platform targets a specialized customer segment of webmasters and marketers, leveraging SEO metrics as trust signals.

Security posture

The website employs HTTPS, enhancing data transmission security. However, no security headers such as Content Security Policy or HSTS were detected, which could mitigate common web vulnerabilities. There is no visible incident response or vulnerability disclosure information, and no security contact channels are provided. The site does not display privacy or cookie policies, indicating potential non-compliance with GDPR or similar regulations. The use of Baidu Analytics implies user tracking without clear privacy disclosures. Overall, the security maturity is moderate but could be significantly improved by implementing security best practices, transparency, and compliance measures.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies to improve compliance and user trust.
  2. Add security headers such as Content Security Policy, HSTS, and X-Frame-Options to enhance protection against common attacks.
  3. Provide clear contact information for security incidents and establish a vulnerability disclosure program.
  4. Improve mobile responsiveness and accessibility to enhance user experience across devices.
  5. Clarify domain registration details and ensure WHOIS information is accurate and publicly available to increase legitimacy.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
55Links
Description
55links为广大站长提供友情链接买卖、友情链接出售、友情链接购买、买卖链接等服务，致力打造专业级的网站外链平台、友情链接交易平台，为站长提供专业的网络推广服务，买链接、卖链接就上55links。
Key services
友情链接买卖, 外链购买, 软文发稿, 服务市场（营销推广、技术开发、美工设计）
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, jQuery (implied by layer.js usage), Baidu Analytics
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
60/100
Good practices seen
  • HTTPS usage implied by canonical link (https://m.55links.com/)
  • No visible 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 in Chinese targeting Chinese webmasters and marketers
  2. No privacy or cookie policies found, indicating compliance gaps
  3. No explicit contact emails or phone numbers found; only QQ and WeChat contact methods
  4. No security incident or vulnerability disclosure information present
  5. WHOIS data unavailable, raising questions about domain registration transparency
  6. Website uses Baidu Analytics for tracking
  7. No visible security headers or advanced security configurations detected
  8. Website content is rich with categorized link listings and SEO metrics
  9. Mobile optimization is basic with some responsiveness
  10. No adult or questionable content detected
Technical notes

Notes

The website uses standard web technologies including HTML5, CSS3, and JavaScript, with integration of Baidu Analytics for tracking. The design is professional with clear navigation and categorized content relevant to its business. Mobile optimization is basic but present. No CMS or advanced frameworks were detected. Performance is moderate with no evident critical technical issues. However, the absence of security headers and privacy compliance features indicates technical debt in security and regulatory adherence. The site could benefit from modernization efforts focusing on security, privacy, and accessibility enhancements.
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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