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Security report for ucweb.com

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

Low risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

77/100

Risk levelLow

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

UC Browser is a well-established mobile and desktop web browser launched in 2004, with a user base exceeding 1 billion by 2025. It holds a strong market position in Asia, particularly in India and Indonesia, competing with major browsers like Firefox and Opera. The company emphasizes speed, privacy, and innovation, offering features such as built-in VPN, ad blocking, cloud storage, and AI-driven translation. The website reflects a mature digital presence with professional design and comprehensive content targeting general internet users seeking fast and secure browsing experiences. Technically, the website leverages modern JavaScript frameworks, service workers, and analytics tools like Google Tag Manager and Hotjar. Hosting appears to be on Alibaba Cloud, ensuring good performance and mobile optimization. Security posture is solid with HTTPS and some security headers, though improvements are recommended in explicit header implementation and incident response transparency. The absence of WHOIS data for the domain www.ucweb.com is a notable gap, reducing domain registration trustworthiness. However, the website content and business information align with a legitimate large technology company. Privacy compliance is partially addressed with a comprehensive privacy policy but lacks visible cookie consent mechanisms. Overall, the website is professional, secure, and user-friendly but would benefit from enhanced transparency and compliance features.

Scanned

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

4 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"

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

Keep watching ucweb.com

This scan found 16 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
90
Security headers
65
Email security
65
DNS health
85
Network security
100
GDPR outside view
58
Average
77

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

UC Browser operates in the technology sector as a major player in mobile and desktop web browsing. Its competitive advantages include a large user base, advanced features like built-in VPN and cloud storage, and strong market penetration in emerging markets. The business model likely relies on free software distribution combined with advertising and partnerships. The company targets a broad audience of general internet users, emphasizing speed and privacy. Growth indicators include over 1 billion users and significant market share. The partnership ecosystem includes referral programs and campaign tracking services. Strategic observations highlight the need for improved domain registration transparency and enhanced privacy compliance to maintain trust and regulatory alignment.

Security posture

The website demonstrates a good security maturity level with enforced HTTPS, service worker usage, and partial security headers. No obvious vulnerabilities or exposed sensitive data were detected. Compliance gaps include the absence of explicit incident response contacts and a security.txt file. Data protection practices are partially visible through the privacy policy, but cookie consent mechanisms are missing. Incident response readiness and security culture indicators are not publicly evident. The security posture is adequate for business operations but could be strengthened by adding clear security policies, contact channels, and cookie consent to improve user trust and regulatory compliance.

Recommendations

  1. Implement and publish explicit security headers such as X-Frame-Options and X-Content-Type-Options.
  2. Add a visible cookie consent banner to comply with privacy regulations and improve user transparency.
  3. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  4. Provide clear incident response contact information, including security and abuse email addresses.
  5. Clarify domain registration details or remove privacy protection to enhance 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 holds over 30% market share in key regions such as India and Indonesia, competing with Firefox and Opera. The browser emphasizes speed, privacy, and innovation.
Key services
Mobile and desktop web browsing, Built-in VPN, Ad blocking, Cloud storage (20GB free), Video playback and downloader, AI-driven translation
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, React (implied by CSR and component structure), Hotjar (analytics), Google Tag Manager, Service Workers
Frameworks
React or similar SPA framework
Platforms
Web, Desktop, Mobile
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Service Worker registered
  • No exposed sensitive data in HTML

Analytics and tracking

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

Advertising

Tracking pixels
Hotjar
Marketing tools
Hotjar
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. No WAF or security challenge detected.
  3. WHOIS data for domain is missing, which is unusual for a major brand.
  4. Privacy policy is present and comprehensive; cookie consent mechanism is missing.
  5. Contact phone number is provided in footer; no email addresses found.
  6. Multiple external domains used for assets and analytics, mostly reputable.
  7. Security headers partially detected; SSL is properly configured.
  8. No explicit security or incident response contact information found.
  9. Website content is safe and suitable for general audiences.
  10. Strong branding and user testimonials support business credibility.
Technical notes

Notes

The website uses a modern JavaScript-based front-end framework, likely React, with server-side rendering fallback. It employs service workers for offline capabilities and performance improvements. Hosting is via Alibaba Cloud, ensuring fast content delivery. Analytics tools include Google Tag Manager and Hotjar for user behavior insights. The site is mobile-optimized with responsive design and good accessibility features. Performance is fast with efficient asset loading from CDN domains. Technical risks are minimal but include potential technical debt if privacy and security compliance features are not updated. Modernization opportunities include enhancing security headers and privacy 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. 73/100 +5Medium26 findingsView report
  2. 68/100Medium29 findingsView report
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