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Security report for ucweb.com

Guangzhou Dongjing Computer Technology Co., Ltd. · Technology · China

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

73/100

Risk levelMedium

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

UC Browser is a well-established mobile and desktop browser with a significant global user base exceeding 1 billion users by 2025. It offers a feature-rich browsing experience including built-in VPN, ad blocking, cloud storage, AI translation, and advanced video playback capabilities. The company behind the browser is Guangzhou Dongjing Computer Technology Co., Ltd., based in China, with a strong market presence in India and Indonesia. Technically, the website uses modern JavaScript frameworks and analytics tools, providing a fast and mobile-optimized user experience. Security posture is moderate with HTTPS usage and service worker implementation, but lacks explicit security headers and published security policies. Privacy compliance is basic with a privacy policy present but no cookie consent mechanism detected. Overall, the website is professional and trustworthy, though the absence of WHOIS data and some security best practices slightly reduce trust.

Scanned

This is an earlier scan of ucweb.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
58/ 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

5 findings rated critical or high. Fix these first.

  1. 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 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  3. 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.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  4. 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

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

Keep watching ucweb.com

This scan found 19 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

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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
65
Email security
65
DNS health
85
Network security
100
GDPR outside view
58
Average
73

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 business operates in the technology sector, focusing on browser software and related services. It has a large user base and claims top market positions in key regions. The business model appears to be freemium with additional cloud storage and referral programs. The company leverages partnerships and digital marketing tools such as referral programs and analytics. The website content and testimonials support a strong brand reputation. However, the lack of WHOIS transparency and limited contact information may pose minor concerns for some stakeholders.

Security posture

The security maturity level is moderate. The site uses HTTPS and service workers, indicating modern web security practices. However, the absence of key security headers (CSP, HSTS, X-Frame-Options) and no visible incident response or vulnerability disclosure policies are gaps. No exposed sensitive data or known vulnerabilities were detected in the content. Privacy compliance is basic, lacking cookie consent and GDPR explicit indicators. The site would benefit from publishing a security policy, incident response contacts, and implementing cookie consent mechanisms to improve compliance and trust.

Recommendations

  1. Implement and publish a comprehensive security policy and incident response plan.
  2. Add and enforce security headers such as Content Security Policy, HSTS, and X-Frame-Options.
  3. Introduce a cookie consent banner to comply with privacy regulations and improve user transparency.
  4. Publish vulnerability disclosure information and security.txt file to encourage responsible reporting.
  5. Enhance WHOIS transparency or provide domain registration details to improve trustworthiness.

Contact details published on the site

Addresses
Legal name
广州市动景计算机科技有限公司
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Guangzhou Dongjing Computer Technology Co., Ltd.
Description
UC Browser, launched in 2004, is a leading mobile browser with over 1 billion users by 2025. It offers fast, private, and innovative browsing with features like built-in VPN, ad blocking, cloud storage, AI translation, and multi search engine support.
Key services
Mobile and desktop browser, Built-in VPN, Ad blocking, Cloud storage (20GB free), AI translation, Video playback and download
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, React (implied by CSR and SSR scripts), Hotjar (analytics), Google Tag Manager, Service Workers
Frameworks
React
Platforms
Web, Mobile, Desktop
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS usage (implied by canonical URL https://www.ucweb.com)
  • Service worker registration

Analytics and tracking

Services
Google Analytics (via GTM), Hotjar
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Hotjar, Adjust
Marketing tools
Hotjar
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 and user testimonials.
  2. No WHOIS data available from raw output, indicating possible privacy or registry data unavailability.
  3. Footer contains Chinese ICP license and company name consistent with business claims.
  4. No explicit privacy or cookie consent banners detected.
  5. No security.txt or vulnerability disclosure found.
  6. Uses modern JavaScript frameworks and analytics tools.
  7. No suspicious or malicious content detected.
  8. Contact phone number provided but no email addresses found.
  9. Referral program mentioned indicating marketing efforts.
Technical notes

Notes

The website is built using modern JavaScript frameworks, likely React, with server-side rendering and client-side hydration. It uses Google Tag Manager and Hotjar for analytics and user behavior tracking. The site is mobile-optimized with responsive design and fast loading times. Service workers are registered for offline capabilities or performance improvements. No CMS or hosting provider details are explicitly detected. The technical implementation is solid but could improve in security header implementation and 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. 77/100 +9Low23 findingsView report
  2. 68/100Medium29 findingsView report
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