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Security report for pdfmao.com

厦门中数华森信息技术有限公司 · Technology · China

Medium risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

72/100

Risk levelMedium

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

PDF猫 is a Chinese technology company specializing in online document conversion services, offering a wide range of free tools for converting PDF files to various formats such as Word, PPT, JPG, Excel, and CAD, as well as the reverse conversions. The company also provides downloadable desktop software to enable unlimited file conversions beyond the free online limits. Positioned as an industry leader in the Chinese market, PDF猫 targets general users needing efficient and easy-to-use document conversion solutions. The website is professionally designed with consistent branding and good content quality, supported by an ICP license indicating regulatory compliance in China. Technically, the website uses a traditional web stack including jQuery and Tencent's BizQQWPA chat widget for customer support. The site is moderately optimized for performance and mobile use but lacks advanced security headers and cookie consent mechanisms. No CMS or hosting provider details are evident. SEO practices are good with proper meta tags and structured navigation. From a security perspective, the site uses HTTPS but does not implement visible security headers or publish security policies or incident response contacts. The absence of WHOIS registration data reduces trustworthiness, although the ICP license and active content suggest legitimacy. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, PDF猫 presents a solid online service platform with room for improvement in privacy compliance, security posture, and transparency. Strategic recommendations include implementing security headers, adding cookie consent, publishing security and incident response policies, and verifying domain registration details to enhance trust and compliance.

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

4 findings rated critical or high. Fix these first.

  1. 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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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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
67
Security headers
85
Email security
70
DNS health
60
Network security
100
GDPR outside view
50
Average
72

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

PDF猫 operates in the technology sector focusing on document conversion tools, serving a broad user base in China. Its business model combines free online services with downloadable paid software to unlock full functionality. The company leverages partnerships for software hosting and uses Tencent's customer service tools to engage users. The presence of an ICP license and multiple product offerings indicates a mature business with a stable market position. The website content and frequent updates suggest active content marketing and user education efforts. However, the lack of explicit contact details and WHOIS transparency may impact perceived credibility. Growth opportunities exist in expanding privacy and security compliance and enhancing mobile user experience.

Security posture

The website demonstrates a basic security posture with HTTPS enabled but lacks critical security headers such as Content Security Policy, HSTS, and X-Frame-Options. No security or incident response policies are published, and no vulnerability disclosure or security.txt files are present. The absence of cookie consent mechanisms indicates partial privacy compliance. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The use of Tencent's BizQQWPA widget is a positive for customer support but should be monitored for security risks. Overall, the security maturity is moderate with recommendations to adopt best practices and improve transparency to reduce risk and enhance user trust.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, and X-Frame-Options to protect against common web attacks.
  2. Add a cookie consent banner and detailed cookie policy to comply with privacy regulations and improve user transparency.
  3. Publish a clear security policy and incident response contact information to demonstrate commitment to security and facilitate vulnerability reporting.
  4. Verify and update WHOIS domain registration information to improve domain legitimacy and trustworthiness.
  5. Enhance mobile responsiveness and accessibility features to improve user experience across devices.

Contact details published on the site

Addresses
Legal name
厦门中数华森信息技术有限公司
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
厦门中数华森信息技术有限公司
Description
PDF猫在线PDF转换器免费版,免费将PDF文件转换为Word、PPT、JPG、Excel等多种格式,并支持pdf与word、ppt、jpg等常见文件格式间的互相转换，高效转换,操作简单,无需下载安装。
Key services
PDF to Word, PDF to JPG, PDF to PPT, PDF to Excel, Word to PDF, PPT to PDF, PDF compression, Image compression, CAD conversions, E-book format conversions
Content quality
good
Branding
consistent

Technology

Stack
jQuery, BizQQWPA (Tencent QQ customer service widget), CSS3, HTML5
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
65/100
Good practices seen
  • HTTPS usage implied by URL
  • No visible exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

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 online PDF and document conversion platform
  2. No WHOIS data available, possibly due to privacy or domain registration issues
  3. No explicit contact emails or phone numbers found on main pages
  4. Privacy and terms pages exist but cookie consent is missing
  5. No security.txt or vulnerability disclosure found
  6. Uses Tencent QQ customer service chat widget
  7. Multiple downloadable official software products offered
  8. ICP license number present indicating compliance with Chinese regulations
  9. No adult or questionable content detected
  10. No visible security headers or advanced security policies
Technical notes

Notes

The website uses a traditional web technology stack with jQuery and custom CSS/JS. It integrates Tencent's BizQQWPA for live customer support chat. The site is structured with clear navigation and SEO-friendly meta tags. Performance is moderate with no major blocking scripts detected. However, there is no evidence of a modern CMS or advanced frameworks. Hosting provider details are not disclosed. The site lacks advanced security configurations and cookie consent mechanisms. Technical debt is moderate, with opportunities to modernize front-end frameworks, improve mobile optimization, and implement security best practices to reduce risk and improve compliance.
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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