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Security report for 51yuansu.com

杭州启觅网络科技有限公司 · Other · China

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

58/100

Risk levelMedium

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

觅元素 is a Chinese digital platform specializing in providing high-quality free and premium design resources including PNG elements, high-definition backgrounds, and photography images. The platform targets designers, marketers, and content creators seeking accessible design assets with commercial use options via VIP memberships. The website demonstrates a consistent brand presence and offers a well-structured user experience with categorized content and VIP service options. Technically, the site employs common JavaScript libraries such as jQuery and Masonry for layout and interactivity, and uses Baidu Analytics for traffic monitoring. While HTTPS is enforced and some security headers are present, there is room for improvement in security hardening and privacy compliance, particularly regarding cookie consent mechanisms. The absence of WHOIS registration data is a notable concern for domain legitimacy verification, although the presence of ICP licenses and business registration information supports the site's authenticity. Overall, the platform is a reputable resource within its niche but should address security and compliance gaps to enhance trust and regulatory adherence.

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. 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';…

  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

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

Keep watching 51yuansu.com

This scan found 28 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
15
Email security
60
DNS health
60
Network security
100
GDPR outside view
50
Average
58

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 operates in the digital design resource sector, offering a freemium business model with VIP memberships for personal and enterprise commercial use. It holds a solid market position in China, supported by a medium-sized operation and a broad catalog of design assets. The platform benefits from partnerships with related design and image hosting sites, enhancing its ecosystem. Revenue streams likely include VIP subscriptions and possibly advertising. The target customer segments are primarily creative professionals and businesses requiring design materials. Growth indicators include active content updates and promotional campaigns. Strategic observations suggest focusing on expanding international reach and improving compliance to capture broader markets.

Security posture

The website maintains a moderate security posture with HTTPS enforced and a Content-Security-Policy header to upgrade insecure requests. Login forms incorporate CAPTCHA mechanisms to mitigate automated abuse. However, the site lacks several recommended security headers such as X-Frame-Options and Strict-Transport-Security, which could improve protection against clickjacking and downgrade attacks. No exposed sensitive data or vulnerable libraries were detected in the HTML content. Privacy compliance is partial, with privacy and terms policies present but no cookie consent banner. Incident response and security policy information are absent, indicating potential gaps in security governance. Overall, the security maturity is adequate for the site's function but requires enhancements to meet higher standards and regulatory requirements.

Recommendations

  1. Implement additional HTTP security headers including X-Frame-Options, X-XSS-Protection, and Strict-Transport-Security to strengthen defense-in-depth.
  2. Deploy a cookie consent mechanism to comply with privacy regulations and improve user transparency.
  3. Publish a formal security policy and incident response contact information to enhance trust and preparedness.
  4. Improve mobile optimization and accessibility features to broaden user accessibility and satisfaction.
  5. Verify and publish domain WHOIS registration details to improve domain legitimacy and trustworthiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
杭州启觅网络科技有限公司
Description
觅元素专注于提供高质量版权素材图片免费下载的网站，提供优质png素材、高清背景素材、图片素材、设计素材，找高质量版权素材就来觅元素.
Key services
Free PNG elements, High-definition backgrounds, Photography images, VIP membership for commercial use
Content quality
good
Branding
consistent

Technology

Stack
jQuery, ZeroClipboard, Masonry.js, Flex-images, Baidu Analytics
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Content-Security-Policy header present
  • CAPTCHA on login forms
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Baidu Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Baidu Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is a Chinese digital design resource platform offering free and VIP content.
  2. Content is rich with categorized design elements, backgrounds, and photos.
  3. Site uses HTTPS and some security headers but could improve security posture.
  4. WHOIS data is unavailable, which is a concern for domain legitimacy verification.
  5. Privacy and terms policies are present but cookie consent is missing.
  6. No direct company contact phone numbers found; only an email and online contact.
  7. Site includes links to many partner and related design resource sites.
  8. No adult or questionable content detected; suitable for general audiences.
Technical notes

Notes

The website uses a traditional web technology stack centered on jQuery and Masonry.js for dynamic content layout and user interaction. It integrates Baidu Analytics for traffic analysis and employs ZeroClipboard for clipboard operations. The site is served over HTTPS with a basic Content-Security-Policy header. Performance is moderate with lazy loading of images to optimize load times. Mobile optimization is basic, with a separate mobile URL provided. Accessibility features are minimal but present. The site does not appear to use a common CMS, suggesting a custom or proprietary platform. Hosting provider details are not discernible from the content. Technical risks include limited security headers and lack of advanced privacy compliance mechanisms.
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

Earlier scans of this domain

  1. 59/100Medium35 findingsView report
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