# BeaverCheck Audit Report — https://vivo.com.cn **Date:** April 16, 2026 **URL:** https://vivo.com.cn **Overall Grade:** C (71/100) **Report:** https://beavercheck.com/results/fc92c835-4e80-42a2-89fe-74aba54d1e4e ## Top Findings 1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers 2. **[CRITICAL]** HSTS header is missing — Security > Security Headers 3. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy 4. **[CRITICAL]** Page weighs 6.3 MB (4.8 MB transferred) — Performance > Page Weight Budget 5. **[CRITICAL]** 1 control(s) without accessible label — Accessibility > Form Accessibility --- ## Lighthouse Scores | Category | Score | |----------|-------| | Performance | 57 | | Accessibility | 84 | | Best Practices | 92 | | SEO | 85 | --- ## Security ### Security Headers (F — 10/100) *2 of 10 headers properly configured* - **[CRITICAL]** HSTS header is missing — Strict-Transport-Security forces browsers to use HTTPS, preventing downgrade attacks. Add the header with a max-age of at least 1 year. - **[WARNING]** X-Content-Type-Options header is missing — This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'. - **[WARNING]** X-Frame-Options header is missing — This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN. - **[WARNING]** Referrer-Policy header is missing — Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter. - **[WARNING]** Permissions-Policy header is missing — Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features. - **[CRITICAL]** Content-Security-Policy header is missing — CSP is the most important header for preventing XSS attacks. See the CSP section for detailed analysis. - **[WARNING]** Cross-Origin-Opener-Policy header is missing — COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'. - **[WARNING]** Cross-Origin-Embedder-Policy header is missing — COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers. - **[PASS]** X-Powered-By header is not present - **[PASS]** Server header is not present ### Content Security Policy (F — 0/100) *No enforcing CSP policy found* - **[CRITICAL]** No Content-Security-Policy header found — CSP is the most effective defense against XSS attacks. Add a Content-Security-Policy header to restrict resource loading. ### TLS & Certificates (A+ — 100/100) *TLS 1.2, 7 checks passed* - **[PASS]** TLS 1.2 is used - **[INFO]** TLS 1.3 is not negotiated — TLS 1.3 offers improved performance and security. Consider enabling it. - **[PASS]** Strong cipher suite is used - **[INFO]** HTTP/2 is not negotiated — HTTP/2 provides multiplexing and header compression for better performance. - **[PASS]** Certificate is valid (expires in 79 days) - **[PASS]** Certificate chain has 3 certificates - **[PASS]** Certificate uses modern signature algorithm - **[PASS]** Certificate covers 2 domain(s) - **[PASS]** Certificate is issued by a trusted CA ### Cookie Security (A+ — 100/100) *No cookies set — no cookie security risks* - **[PASS]** No cookies set — no cookie security risks --- ## Advanced Security ### Subresource Integrity (F — 20/100) *0 of 11 external resources have SRI* - **[WARNING]** External script from portalstatic-ex.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from asia-exstatic.vivoglobal.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from asia-exstatic.vivoglobal.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from portalstatic-ex.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from portalstatic-ex.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External link from portalstatic-ex.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from portalstatic-ex.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from vcm-static.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from vcm-static.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from asia-exstatic.vivoglobal.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. - **[WARNING]** External script from portalstatic-ex.vivo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code. ### JS Library Vulnerabilities (A+ — 100/100) *No known vulnerabilities* - **[PASS]** No known JavaScript library vulnerabilities detected ### Information Leakage (A+ — 100/100) *No exposures* - **[PASS]** security.txt is present — good practice - **[PASS]** No sensitive files exposed ### Email Security (A — 85/100) *DMARC: quarantine* - **[PASS]** DMARC policy is quarantine — good protection ### Permissions-Policy (D — 40/100) *No header set* - **[WARNING]** No Permissions-Policy header — Consider adding a Permissions-Policy header to restrict browser feature access from embedded content. ### CORS Configuration (B — 80/100) *No CORS headers* - **[PASS]** No CORS headers present — secure default --- ## Performance ### Page Weight Budget (F — 0/100) *4.8 MB transferred, 84 requests* - **[CRITICAL]** Page weighs 6.3 MB (4.8 MB transferred) - **[WARNING]** Images are 3.5 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size. - **[INFO]** Fonts are 742 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks. - **[INFO]** 84 HTTP requests - **[INFO]** Estimated 1.0 g CO2 per page load ### Third-Party Impact (D — 50/100) *100% third-party, 0 ms blocking* - **[WARNING]** Third-party code accounts for 100% of page weight (4.8 MiB of 4.8 MiB) - **[PASS]** Third-party blocking time is low (0 ms) ### Text Compression (A+ — 100/100) *All text resources are compressed* - **[PASS]** All text resources are compressed ### Image Optimization (C — 60/100) *46 images, 0 KB saveable* - **[WARNING]** https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. - **[WARNING]** https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS. ### JS Execution Cost (D — 40/100) *3051ms total JS execution* - **[WARNING]** https://portalstatic-ex.vivo.com/_nuxt/BuCLus8g.js: 932ms CPU time - **[WARNING]** https://www.vivo.com/eu: 821ms CPU time - **[WARNING]** Unattributable: 621ms CPU time - **[WARNING]** https://portalstatic-ex.vivo.com/_nuxt/Cdj7bKnM.js: 387ms CPU time - **[INFO]** https://portalstatic-ex.vivo.com/js/jquery-3.6.0.m...: 84ms CPU time - **[WARNING]** Third-party scripts: 3051ms (100% of total) ### Font Loading (A+ — 100/100) *10 fonts (742 KB)* - **[INFO]** 10 font(s) use font-display: swap (FOUT risk but functional) ### JS Bundles (B — 80/100) *10 scripts, 99 KB unused* - **[WARNING]** https://portalstatic-ex.vivo.com/_nuxt/DnJDNhe7.js: 29 KB unused (32%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://portalstatic-ex.vivo.com/js/jquery-3.6.0.m...: 25 KB unused (74%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://vcm-static.vivo.com/kXxOmoV76SPgGRVl/vcode...: 24 KB unused (64%) — Consider code splitting or tree shaking to reduce unused code. - **[WARNING]** https://asia-exstatic.vivoglobal.com/static/bus/in...: 22 KB unused (68%) — Consider code splitting or tree shaking to reduce unused code. - **[INFO]** Total unused JavaScript: 99 KB ### Resource Caching (A+ — 100/100) *All resources properly cached* - **[PASS]** No caching issues found ### Critical Rendering Path (A+ — 100/100) *No render-blocking resources* - **[PASS]** No render-blocking resources detected ### Resource Hints (A+ — 100/100) *15 hints, 0 missing preconnects* - **[PASS]** Page uses 15 resource hint(s) ### Page Weight Inventory (D — 45/100) *84 resources · 4.8 MB · 99 KB savings available* - **[WARNING]** Page weight 3.8 MB over 1MB target - **[INFO]** ~99 KB of savings available - **[WARNING]** 83 third-party resources (100% of weight) - **[INFO]** 10 resources over 200KB ### Render-Blocking Resources (A+ — 100/100) *No render-blocking resources detected* - **[PASS]** No render-blocking resources detected in ### Third-Party Resources (A+ — 100/100) *No third-party resources detected* --- ## Content Quality ### Links (A — 95/100) *100 links checked, 99 healthy, 1 broken* - **[WARNING]** 99 of 100 links are healthy - **[WARNING]** Broken link: https://www.googletagmanager.com — Found in . Returns HTTP 404. ### Mixed Content (A+ — 100/100) *No mixed content detected — all resources use HTTPS.* - **[PASS]** No mixed content detected — all resources use HTTPS ### Open Graph (F — 0/100) *No Open Graph tags found — social sharing previews will be generic.* - **[WARNING]** No Open Graph meta tags found — Without og:title, og:description, and og:image, social media platforms will generate a generic preview when your page is shared. ### Structured Data (C — 40/100) *No structured data (JSON-LD) found.* - **[INFO]** No structured data (JSON-LD) found — Adding structured data helps search engines understand your content and can enable rich results. --- ## Infrastructure ### DNS Records (A+ — 95/100) *1 A records, 32 ms lookup* - **[PASS]** Resolves to 1 IPv4 address(es) - **[INFO]** Single A record — no DNS redundancy — Multiple A records provide failover if one server goes down. - **[INFO]** No IPv6 (AAAA) records - **[PASS]** 2 nameserver(s) configured - **[PASS]** 1 mail exchanger(s) configured - **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update. - **[PASS]** SPF record present in TXT - **[PASS]** DNS resolution time: 32 ms ### Redirect Chain (A — 90/100) *1 redirect(s), 446 ms total* - **[PASS]** Single redirect - **[INFO]** WWW normalization redirect - **[INFO]** Cross-domain redirect detected ### IPv6 Readiness (C — 60/100) *No IPv6 support* - **[INFO]** No IPv6 (AAAA) records found — IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity. ### Crawlability (C — 65/100) *robots.txt present, sitemap with 0 URLs* - **[PASS]** robots.txt is present - **[PASS]** sitemap.xml is present - **[WARNING]** sitemap.xml contains invalid XML — Search engines may not be able to parse the sitemap. Fix XML validation errors. - **[WARNING]** sitemap.xml is empty — no URLs found — An empty sitemap provides no value. Add entries for your pages. - **[INFO]** robots.txt does not reference a sitemap — Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap. ### URL Variants (B — 75/100) *www/non-www, trailing slash, HTTP→HTTPS* - **[CRITICAL]** Both www and non-www versions serve content - **[PASS]** HTTP correctly 301-redirects to HTTPS ### Domain Intelligence (A+ — 100/100) *vivo.com.cn — via 贵州中域智科网络技术有限公司, 16 years, 5 months old, hosted on Alibaba Cloud* - **[PASS]** Domain registered until Jan 28, 2031 (4 years, 10 months remaining) - **[PASS]** Registrar: 贵州中域智科网络技术有限公司 - **[PASS]** Registrar lock is enabled — Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers. - **[PASS]** Hosting: Alibaba Cloud --- ## Compliance ### WCAG Compliance (A+ — 100/100) *No testable criteria* ### Cookie Consent & Privacy (B — 80/100) *No consent signals detected* - **[WARNING]** No privacy policy link detected — A privacy policy page is recommended for transparency and may be legally required. - **[INFO]** No terms of service link detected - **[INFO]** No cookie consent banner detected - **[INFO]** This is an automated check, not legal advice — BeaverCheck detects technical indicators of consent management. This does not constitute a legal compliance assessment. Consult a privacy professional for GDPR/CCPA compliance. ### Language & i18n (A — 90/100) *Lang attribute present* - **[PASS]** attribute is present - **[PASS]** value is valid - **[INFO]** No Content-Language HTTP header - **[INFO]** Language signals are inconsistent — The attribute and Content-Language header should agree. ### Readability & Typography (A+ — 100/100) *Font sizes and tap targets checked* ### Viewport Configuration (A+ — 100/100) *Viewport properly configured* - **[PASS]** Viewport meta tag is present - **[PASS]** width=device-width is set - **[PASS]** User zooming is allowed ### Third-Party Trackers (C — 55/100) *2 trackers detected* - **[INFO]** 2 third-party trackers detected — Found 2 analytics, 0 advertising, 0 marketing, 0 tag manager trackers. - **[WARNING]** Trackers detected but no cookie policy found — This page loads 2 trackers but no cookie policy was detected. GDPR requires disclosure when using tracking cookies. - **[WARNING]** Trackers detected but no privacy policy found — Most data protection regulations require a privacy policy when collecting user data via trackers. ### Cookie & Tracker Inventory (A+ — 100/100) *0 cookies · 2 trackers · 0 pre-consent* - **[INFO]** 2 third-party tracker(s) detected on page --- ## Legal ### Legal Page Ecosystem (D — 50/100) *2 of 7 expected legal pages detected* - **[PASS]** Privacy Policy detected — Found at https://privacy.vivo.com/country?to=privacy, linked from footer. - **[WARNING]** Terms of Service not detected — No link matching common Terms of Service URL patterns or link text was found. Most websites are expected to have a Terms of Service, especially those collecting user data. - **[PASS]** Cookie Policy detected — Found at https://www.vivo.com/eu/about-vivo/cookie-policy, linked from footer. - **[INFO]** Accessibility Statement not detected — No link matching common Accessibility Statement URL patterns or link text was found. Most websites are expected to have a Accessibility Statement, especially those collecting user data. - **[INFO]** DMCA / Copyright Notice not detected — No link matching common DMCA / Copyright Notice URL patterns or link text was found. Most websites are expected to have a DMCA / Copyright Notice, especially those collecting user data. - **[INFO]** Refund / Returns Policy not detected — No link matching common Refund / Returns Policy URL patterns or link text was found. Most websites are expected to have a Refund / Returns Policy, especially those collecting user data. - **[INFO]** Acceptable Use Policy not detected — No link matching common Acceptable Use Policy URL patterns or link text was found. Most websites are expected to have a Acceptable Use Policy, especially those collecting user data. ### Copyright Notice (A+ — 100/100) *© 2026 vivo Mobile Communication Co* - **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 vivo Mobile Communication Co - **[PASS]** Copyright holder: vivo Mobile Communication Co ### Regulatory Indicators *1 regulatory indicator(s) detected* - **[INFO]** This is a technical scan, not a legal assessment — BeaverCheck detects technical indicators that may suggest regulatory relevance. This is not a compliance audit and should not be relied upon for legal decisions. Consult qualified legal counsel for compliance assessments. - **[INFO]** GDPR indicators detected (moderate confidence) — Indicators suggesting GDPR may be relevant: Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents. ### Third-Party Data Sharing *0 third-party service(s) detected* - **[INFO]** Data inventory for transparency purposes — This inventory identifies third-party services that receive data from your site visitors. Under regulations like GDPR (Article 30), maintaining records of data processing activities is commonly considered a best practice. This automated scan provides a starting point — it may not capture all data flows. - **[INFO]** No recognized third-party data-sharing services detected — This page does not appear to load external tracking, analytics, or advertising scripts. ### Compliance Badges (C — 55/100) *0 compliance badge(s) detected* - **[INFO]** No compliance badges detected — No recognized compliance certification badges or seals were found. This is common — many sites do not display compliance badges. --- ## Availability ### CDN & Delivery (D — 50/100) *No CDN detected* - **[WARNING]** No CDN detected — A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them. ### HTTP Caching (F — 30/100) *No cache headers* - **[WARNING]** No Cache-Control header found — Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers. ### Transport Security (B — 75/100) *HTTP/3, HSTS, and TLS version analysis* - **[INFO]** HTTP/3 (QUIC) not advertised — HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it. - **[WARNING]** Missing Strict-Transport-Security header — HSTS tells browsers to only use HTTPS, preventing SSL stripping attacks. --- ## Accessibility ### Landmark Structure (A — 85/100) *5 landmarks* - **[PASS]**
landmark present - **[PASS]** 1