# BeaverCheck Audit Report — https://www.zoom.com
**Date:** April 7, 2026
**URL:** https://www.zoom.com
**Overall Grade:** C (71/100)
**Report:** https://beavercheck.com/results/90adeb37-a2da-e8a4-fc3f-f33b6be1af82
## Top Findings
1. **[CRITICAL]** Content-Security-Policy header is missing — Security > Security Headers
2. **[CRITICAL]** No Content-Security-Policy header found — Security > Content Security Policy
3. **[CRITICAL]** 10 image-only link(s) without alt text — Accessibility > Link & Button Quality
4. **[CRITICAL]** 4 image(s) missing alt attribute — Accessibility > Alt Text Quality
5. **[CRITICAL]** 9 button(s) with no accessible text — Accessibility > Link & Button Quality
---
## Lighthouse Scores
| Category | Score |
|----------|-------|
| Performance | 30 |
| Accessibility | 73 |
| Best Practices | 77 |
| SEO | 77 |
---
## Security
### Security Headers (F — 20/100)
*2 of 10 headers properly configured*
- **[WARNING]** HSTS max-age is too short (15552000s, should be ≥ 31536000s) — A short max-age leaves a window for downgrade attacks. Set max-age to at least 31536000 (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 present without version info
### 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 1.3, 7 checks passed*
- **[PASS]** TLS 1.3 is used
- **[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 119 days)
- **[PASS]** Certificate chain has 3 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 8 domain(s)
- **[PASS]** Certificate is issued by a trusted CA
### Cookie Security (A+ — 100/100)
*1 cookies analyzed, 3 checks passed*
- **[PASS]** Cookie '__cf_bm' has the Secure flag
- **[PASS]** Cookie '__cf_bm' has the HttpOnly flag
- **[PASS]** Cookie '__cf_bm' has SameSite=None
---
## Advanced Security
### Subresource Integrity (F — 20/100)
*0 of 9 external resources have SRI*
- **[WARNING]** External script from www.googletagmanager.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from st1.zoom.us lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.cookielaw.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from st1.zoom.us lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.bc0a.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.cookielaw.org lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from st1.zoom.us lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from st1.zoom.us lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from us01ccistatic.zoom.us 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*
- **[INFO]** No security.txt found — Consider adding a security.txt at /.well-known/security.txt.
- **[PASS]** No sensitive files exposed
### Email Security (F — 30/100)
*No DMARC*
- **[WARNING]** No DMARC record found — Without DMARC, email receivers have no policy for handling authentication failures.
### 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 (C — 60/100)
*Origin: **
- **[INFO]** Access-Control-Allow-Origin: * — unrestricted — Any website can read this resource's response. Appropriate for public APIs but not for user-specific content.
- **[INFO]** Origin reflection not testable with a single request — Some servers reflect the request Origin header. This requires manual testing with a crafted Origin header.
---
## Performance
### Page Weight Budget (F — 6/100)
*3.7 MB transferred, 309 requests*
- **[WARNING]** Page weighs 12.7 MB (3.7 MB transferred)
- **[WARNING]** Images are 2.2 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
- **[WARNING]** JavaScript is 1010 KB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** Fonts are 294 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[WARNING]** 309 HTTP requests — consider bundling or reducing — Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
- **[INFO]** Estimated 0.78 g CO2 per page load
### Third-Party Impact (D — 50/100)
*98% third-party, 0 ms blocking*
- **[WARNING]** Third-party code accounts for 98% of page weight (3.7 MiB of 3.7 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)
*60 images, 0 KB saveable*
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
### JS Execution Cost (F — 20/100)
*10520ms total JS execution*
- **[WARNING]** https://www.zoom.com/?cms_guid=false: 3209ms CPU time
- **[WARNING]** Unattributable: 1684ms CPU time
- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-5WK...: 1005ms CPU time
- **[WARNING]** https://st1.zoom.us/homepage/20260407-0049/primary...: 750ms CPU time
- **[WARNING]** https://cdn.cookielaw.org/scripttemplates/202409.2...: 694ms CPU time
- **[WARNING]** Third-party scripts: 6764ms (64% of total)
### Font Loading (A+ — 100/100)
*10 fonts (294 KB)*
- **[INFO]** 10 font(s) use font-display: swap (FOUT risk but functional)
### JS Bundles (F — 10/100)
*117 scripts, 532 KB unused*
- **[WARNING]** https://us01ccistatic.zoom.us/us01cci/web-sdk/9283...: 159 KB unused (53%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://us01ccistatic.zoom.us/us01cci/web-sdk/9283...: unminified — 92 KB could be saved
- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-5WK...: 73 KB unused (36%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.googletagmanager.com/gtm.js?id=GTM-5WK...: 73 KB unused (36%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.cookielaw.org/scripttemplates/202409.2...: 61 KB unused (55%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.cookielaw.org/scripttemplates/202409.2...: 61 KB unused (55%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 532 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)
*No optimization needed*
- **[PASS]** No resource hint issues
### 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 (B — 86/100)
*200 links checked, 196 healthy, 2 broken*
- **[WARNING]** 196 of 200 links are healthy
- **[CRITICAL]** Broken link: https://www.zoom.com/en/products/ai-assistant/ — Found in . Get "https://www.zoom.com/en/products/ai-assistant/": context deadline exceeded
- **[INFO]** Long redirect chain: https://www.zoom.com/en/video-sdk (3 hops)
- **[INFO]** Long redirect chain: https://click.zoom.com/gartner-magic-quadrant-f... (3 hops)
- **[CRITICAL]** Broken link: https://investors.zoom.us/ — Found in . Get "https://investors.zoom.us/": context deadline exceeded
### Mixed Content (A+ — 100/100)
*No mixed content detected — all resources use HTTPS.*
- **[PASS]** No mixed content detected — all resources use HTTPS
### Open Graph (B — 85/100)
*Open Graph tags are partially configured — some improvements recommended.*
- **[CRITICAL]** og:image is not reachable — The og:image URL could not be fetched. Social platforms won't be able to display it.
- **[INFO]** Missing twitter:card — Without twitter:card, Twitter falls back to Open Graph tags. Adding it gives you more control.
### Structured Data (A — 90/100)
*2 JSON-LD block(s) found — structured data is well configured.*
- **[WARNING]** Missing required property "name" for WebSite — The "name" property is required for the WebSite schema type.
- **[INFO]** Missing recommended property "description" for WebSite — Adding "description" can improve how search engines display your content.
- **[PASS]** Custom type "Corporation" — unable to validate specific properties
- **[PASS]** 2 JSON-LD blocks found
---
## Infrastructure
### DNS Records (A — 85/100)
*1 A records, 59 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.
- **[PASS]** Has 1 IPv6 (AAAA) record(s)
- **[INFO]** No NS records found
- **[INFO]** No MX records — email not configured via DNS
- **[INFO]** CAA records not checked — CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
- **[INFO]** No SPF record found in TXT records — SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
- **[PASS]** DNS resolution time: 59 ms
### Redirect Chain (A+ — 100/100)
*No redirects — direct access*
- **[PASS]** No redirects — direct access
### IPv6 Readiness (F — 30/100)
*IPv6 records exist but unreachable*
- **[WARNING]** IPv6 DNS records exist but server is not reachable — Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
- **[INFO]** IPv6 connection error
### Crawlability (A+ — 100/100)
*robots.txt present, sitemap with 18 URLs*
- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 18 entries
- **[PASS]** Sitemap index with 18 child sitemaps
- **[PASS]** robots.txt references sitemap
### URL Variants (A+ — 100/100)
*www/non-www, trailing slash, HTTP→HTTPS*
- **[PASS]** www/non-www redirect configured correctly (preferred: www)
- **[PASS]** HTTP correctly 301-redirects to HTTPS
### Domain Intelligence (A+ — 100/100)
*zoom.com — via MarkMonitor Inc., 27 years, 4 months old, hosted on AWS*
- **[PASS]** Domain registered until Dec 2, 2027 (1 years, 8 months remaining)
- **[INFO]** DNSSEC is not enabled — DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
- **[PASS]** Registrar: MarkMonitor Inc.
- **[PASS]** Hosting: AWS
---
## 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
- **[PASS]** 1 cookie(s) set on initial load (functional)
- **[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 1 analytics, 0 advertising, 0 marketing, 1 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.
---
## Legal
### Legal Page Ecosystem (B — 70/100)
*3 of 7 expected legal pages detected*
- **[PASS]** Privacy Policy detected — Found at https://www.zoom.com/en/trust/privacy/privacy-statement/, linked from footer.
- **[PASS]** Terms of Service detected — Found at https://www.zoom.com/en/trust/terms/, linked from footer.
- **[INFO]** Cookie Policy not detected — No link matching common Cookie Policy URL patterns or link text was found. Most websites are expected to have a Cookie Policy, especially those collecting user data.
- **[PASS]** Accessibility Statement detected — Found at https://www.zoom.com/en/accessibility/.
- **[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 Zoom Communications*
- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: ©2026 Zoom Communications
- **[PASS]** Copyright holder: Zoom Communications
### Regulatory Indicators
*2 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 (strong confidence) — Indicators suggesting GDPR may be relevant: Consent management platform detected: cookielaw.org; Privacy policy page found. EU General Data Protection Regulation — governs collection and processing of personal data of EU residents.
- **[INFO]** ADA indicators detected (moderate confidence) — Indicators suggesting ADA may be relevant: Accessibility statement page found. Americans with Disabilities Act / Section 508 — requires digital accessibility for people with disabilities.
### Third-Party Data Sharing
*2 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]** 2 third-party services across 2 categories — 2 third-party services detected across 2 categories: Tag Management (1), CDN (1). Each of these services receives some user data from your site visitors.
- **[INFO]** Google Tag Manager (Tag Management) — Detected via script URL. Typically collects: Orchestrates other tracking scripts, Page views. Privacy policy: https://policies.google.com/privacy. Data Processing Agreement available.
- **[INFO]** Cloudflare (CDN) — Detected via cookie name. Typically collects: IP address (transient), Request metadata. Privacy policy: https://www.cloudflare.com/privacypolicy/. Data Processing Agreement available.
### Compliance Badges (B — 70/100)
*1 compliance badge(s) detected*
- **[PASS]** TRUSTe / TrustArc badge detected — Found via body text: 'truste'. Note: the presence of a badge does not verify the certification is current or valid.
---
## Availability
### CDN & Delivery (A — 85/100)
*Cloudflare (DYNAMIC)*
- **[PASS]** Site is served via Cloudflare CDN (edge: GRU)
- **[INFO]** CDN cache status: DYNAMIC
### HTTP Caching (A+ — 95/100)
*max-age=3600 (1 hour)*
- **[PASS]** Cache-Control header is set
- **[PASS]** Effective TTL: 1 hour (max-age=3600)
- **[PASS]** Last-Modified header present
### Transport Security (A — 85/100)
*HTTP/3, HSTS, and TLS version analysis*
- **[PASS]** HTTP/3 (QUIC) supported — The server advertises HTTP/3 via Alt-Svc for faster connections on mobile networks.
- **[WARNING]** HSTS max-age is short: 180 days — HSTS max-age should be at least 1 year (31536000 seconds).
- **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT)
---
## Accessibility
### Landmark Structure (B — 80/100)
*24 landmarks*
- **[PASS]** landmark present
- **[WARNING]** Multiple landmarks (2 found) — A page should have only one landmark.
- **[PASS]** 8