# BeaverCheck Audit Report — https://www.fly.io

**Date:** April 7, 2026  
**URL:** https://www.fly.io  
**Overall Grade:** C (73/100)  
**Report:** https://beavercheck.com/results/c89eb169-36f5-6d32-428b-7fe0b0d43f5a

## 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 7.6 MB (4.9 MB transferred) — Performance > Page Weight Budget
5. **[CRITICAL]** 1 link(s) with no accessible text — Accessibility > Link & Button Quality

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 51 |
| Accessibility | 100 |
| Best Practices | 100 |
| SEO | 82 |

---

## Security

### Security Headers (F — 5/100)

*1 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
- **[WARNING]** Server header reveals version information — The Server header discloses the software version, aiding attackers in targeting known vulnerabilities. Remove the version number.

### 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 61 days)
- **[PASS]** Certificate chain has 2 certificates
- **[PASS]** Certificate uses modern signature algorithm
- **[PASS]** Certificate covers 1 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 4 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 script from analytics.fly.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from analytics.fly.io lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from analytics.fly.io 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 (B — 80/100)

*No CORS headers*

- **[PASS]** No CORS headers present — secure default

---

## Performance

### Page Weight Budget (F — 0/100)

*4.9 MB transferred, 45 requests*

- **[CRITICAL]** Page weighs 7.6 MB (4.9 MB transferred)
- **[WARNING]** Images are 3.6 MB — compress or use modern formats — Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
- **[WARNING]** JavaScript is 924 KB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** Fonts are 297 KB — consider subsetting or using system fonts — Subset fonts to include only used characters, or switch to system font stacks.
- **[PASS]** 45 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 (4.9 MiB of 4.9 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)

*20 images, 0 KB saveable*

- **[WARNING]** https://fly.io/phx/images/webhound-84942d3551221c7... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/home-6-779aa35b5c66e1acf... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/5-home-83633deac598ae018... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/builderio-49040d5f48090f... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/hercules-34711b926fd005d... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/2-home-5715b50f553c9da93... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/3-home-1e977867026ea5209... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/mocha-f959a31e6ecf819b3e... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/context-8058d9902ba3a54d... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/imbue-df3742d6d74199de3c... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/supabase-533b3ab7b5869d3... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/new-home-hero-017530e154... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/autoscale3-db93aeaddd7d7... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/4-home-84e15e7b8209179b4... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/mercor-a7ffc13de45fe6eff... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/reflex-215f5d3819c3bfef0... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/cogram-f563a22679f9ec18b... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://fly.io/phx/images/beam-335997b863cd192251b... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (D — 40/100)

*3296ms total JS execution*

- **[WARNING]** https://fly.io/: 917ms CPU time
- **[WARNING]** https://fly.io/phx/assets/js/app-8e481f8200d3ae950...: 717ms CPU time
- **[WARNING]** Unattributable: 592ms CPU time
- **[WARNING]** https://analytics.fly.io/gtag/js?id=G-EX6DMZ1DZV: 562ms CPU time
- **[INFO]** https://analytics.fly.io/gtag/js?id=G-XXXXXXXXXX&c...: 246ms CPU time
- **[WARNING]** Third-party scripts: 3296ms (100% of total)

### Font Loading (A+ — 100/100)

*7 fonts (297 KB)*

- **[INFO]** 7 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (D — 40/100)

*6 scripts, 354 KB unused*

- **[WARNING]** https://fly.io/phx/assets/js/app-8e481f8200d3ae950...: 164 KB unused (33%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://analytics.fly.io/gtag/js?id=G-EX6DMZ1DZV: 64 KB unused (38%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://analytics.fly.io/gtm.js?id=GTM-M35Q2HRQ: 64 KB unused (54%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://analytics.fly.io/gtag/js?id=G-XXXXXXXXXX&c...: 62 KB unused (46%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 354 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)

*7 hints, 0 missing preconnects*

- **[PASS]** Page uses 7 resource hint(s)

### Render-Blocking Resources (A+ — 100/100)

*No render-blocking resources detected*

- **[PASS]** No render-blocking resources detected in <head>

### Third-Party Resources (A+ — 100/100)

*No third-party resources detected*


---

## Content Quality

### Links (A — 93/100)

*98 links checked, 96 healthy, 1 broken*

- **[WARNING]** 96 of 98 links are healthy
- **[WARNING]** Broken link: https://analytics.fly.io/gtag/js?id=G-XXXXXXXXXX&cx=c&gtm... — Found in <script src>. Returns HTTP 400.
- **[INFO]** Long redirect chain: https://www.fly.io/docs/speedrun/ (3 hops)

### Mixed Content (A+ — 100/100)

*No mixed content detected — all resources use HTTPS.*

- **[PASS]** No mixed content detected — all resources use HTTPS

### Open Graph (A — 95/100)

*Open Graph tags are well configured for social sharing.*

- **[INFO]** og:description is short (36 characters) — Ideal length is 55–200 characters for social sharing previews.
- **[INFO]** Missing og:url — The og:url tag specifies the canonical URL for the shared content.

### 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 — 85/100)

*1 A records, 84 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)
- **[WARNING]** CNAME record at zone apex — A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
- **[PASS]** 4 nameserver(s) configured
- **[PASS]** 5 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: 84 ms

### Redirect Chain (A — 90/100)

*1 redirect(s), 70 ms total*

- **[PASS]** Single redirect
- **[INFO]** WWW normalization redirect

### IPv6 Readiness (A+ — 100/100)

*IPv6 reachable (1 ms)*

- **[PASS]** IPv6 is configured and reachable at 2a09:8280:1::a:791

### Crawlability (A — 90/100)

*no robots.txt, sitemap with 938 URLs*

- **[INFO]** No robots.txt found — robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 938 entries

### 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)

*fly.io — via MarkMonitor Inc., 22 years old*

- **[PASS]** Domain registered until Jul 15, 2033 (7 years, 4 months remaining)
- **[PASS]** Registrar: MarkMonitor Inc.

---

## Compliance

### WCAG Compliance (A+ — 100/100)

*No testable criteria*


### Cookie Consent & Privacy (A — 85/100)

*No consent signals detected*

- **[WARNING]** No privacy policy link detected — A privacy policy page is recommended for transparency and may be legally required.
- **[PASS]** Terms of service link found
- **[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]** <html lang> attribute is present
- **[PASS]** <html lang> value is valid
- **[INFO]** No Content-Language HTTP header
- **[INFO]** Language signals are inconsistent — The <html lang> 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)

*5 trackers detected*

- **[INFO]** 5 third-party trackers detected — Found 4 analytics, 0 advertising, 0 marketing, 1 tag manager trackers.
- **[WARNING]** Trackers detected but no cookie policy found — This page loads 5 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 (C — 65/100)

*3 of 7 expected legal pages detected*

- **[PASS]** Privacy Policy detected — Found at /legal/privacy-policy, linked from footer.
- **[PASS]** Terms of Service detected — Found at /legal/privacy-policy, 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.
- **[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.
- **[PASS]** Acceptable Use Policy detected — Found at /legal/acceptable-use-policy, linked from footer.

### Copyright Notice (A+ — 100/100)

*© 2026 Fly*

- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 Fly
- **[PASS]** Copyright holder: Fly

### 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

*1 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]** 1 third-party services across 1 categories — 1 third-party services detected across 1 categories: Tag Management (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.

### Compliance Badges (B — 70/100)

*2 compliance badge(s) detected*

- **[PASS]** SOC 2 badge detected — Found via body text: 'soc2'. Note: the presence of a badge does not verify the certification is current or valid.
- **[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 (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 (B — 70/100)

*max-age=0, private, must-revalidate*

- **[PASS]** Cache-Control header is set
- **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators.

### 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.
- **[PASS]** TLS 1.3 in use (fastest handshake, 1-RTT)

---

## Accessibility

### Landmark Structure (A — 85/100)

*9 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 3 <nav> landmark(s) found
- **[PASS]** All <nav> elements are properly labeled
- **[WARNING]** Skip navigation link is missing (WCAG 2.4.1) — Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.

### Heading Hierarchy (A+ — 100/100)

*14 headings*

- **[PASS]** Single H1 present

### Alt Text Quality (A+ — 100/100)

*All 29 images OK*

- **[PASS]** 7 decorative image(s) correctly marked
- **[PASS]** 22 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*No form controls*

- **[PASS]** No form controls on this page

### Link & Button Quality (B — 73/100)

*2 issue(s) across 104 links and 1 buttons*

- **[CRITICAL]** 1 link(s) with no accessible text — Links without text are announced as raw URLs by screen readers.
- **[WARNING]** 1 link(s) with generic text — Generic link text like 'click here' doesn't describe the destination.
- **[WARNING]** 22 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 80 link(s) with descriptive text

---

## UX

### 404 Error Page (C — 60/100)

*HTTP 404, custom page*

- **[PASS]** Correct 404 status code returned
- **[PASS]** Custom styled 404 page
- **[PASS]** Homepage link present on 404 page

### Favicon & Branding (C — 65/100)

*6 icon(s) detected*

- **[WARNING]** No favicon.ico at site root — Some older browsers, bookmark tools, and RSS readers look for /favicon.ico. Add one as a fallback.
- **[PASS]** HTML icon links detected
- **[PASS]** Apple touch icon present
- **[PASS]** Multiple icon sizes detected

### Web Manifest (B — 80/100)

*Valid manifest*

- **[PASS]** Name present: Fly.io
- **[PASS]** 192x192 icon present
- **[PASS]** 512x512 icon present
- **[PASS]** Display mode: standalone

### Dark Mode Support (D — 45/100)

*Theme color only*

- **[INFO]** Theme-color present but no dark variant — A theme-color is set but no dark-specific variant was found. The browser toolbar may not adapt for dark mode users.
- **[INFO]** No dark mode signals detected — Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.
- **[INFO]** Detection limited to meta tags and inline styles — External CSS files may contain prefers-color-scheme rules not visible to this scan.

### Print Stylesheet (D — 40/100)

*No print styles*

- **[INFO]** No print-specific styles detected — When users print this page, they get the screen layout including navigation and non-essential elements. Add @media print rules to hide navigation and optimize layout for paper.

### Navigation UX (F — 15/100)

*No navigation patterns*

- **[PASS]** 3 navigation landmark(s) detected
- **[INFO]** No breadcrumbs, search, or skip link detected — These navigation aids help users orient themselves and find content efficiently, especially on large sites.

---

## SEO

### Canonical URL (B — 80/100)

*Minor issues*

- **[WARNING]** No canonical tag found — Search engines will determine the canonical URL themselves, which may cause duplicate content issues.

### Meta Tags (B — 80/100)

*Missing title*

- **[CRITICAL]** No page title found — The <title> tag is the most important on-page SEO element.

### Content Depth (C — 65/100)

*616 words, Difficult*

- **[PASS]** Page has 616 words of content
- **[INFO]** Text-to-HTML ratio is 2% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Difficult (grade 12)

### Internal Links (A+ — 100/100)

*67 internal, 37 external*

- **[PASS]** 67 internal links (64%)
- **[PASS]** 98% of links use descriptive anchor text
- **[INFO]** 67 internal / 37 external links

### Image SEO (A+ — 100/100)

*29 images, 29 descriptive filenames*

- **[PASS]** All images have descriptive filenames

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (D — 50/100)

*1.16g CO2 per view*

- **[WARNING]** 1.16g CO2 per page view — This page transfers 4.9 MB, producing an estimated 1.16g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.03g, network 0.24g, end-user device 0.89g.
- **[INFO]** At 10,000 monthly views: 139.8 kg CO2/year — With 10,000 page views per month, this page would generate approximately 139.8 kg of CO2 annually — equivalent to charging 17472 smartphones.
- **[PASS]** Green hosting reduces data center emissions

### Green Hosting (B — 80/100)

*Green (hosting)*

- **[PASS]** Fly.io uses renewable energy
- **[INFO]** Fly.io: Carbon offsets for all compute
- **[INFO]** Green hosting status based on known provider commitments — Green hosting detection uses a curated database of provider renewable energy commitments. This is not a real-time verification. For authoritative checks, visit thegreenwebfoundation.org.

### Repeat Visit Weight (A+ — 100/100)

*99% cached*

- **[PASS]** 99% reduction on repeat visits — Returning visitors download only 44 KB (vs 5039 KB first visit). 43 of 45 resources are served from browser cache, saving 1.15g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.01g CO2 (first visit: 1.16g)

### Carbon Budget (D — 50/100)

*66th percentile*

- **[WARNING]** 1.16g CO2 — above the median website (0.60g) — Heavier than an estimated 34% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
- **[INFO]** Estimated 66th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (A+ — 100/100)

*93% efficient*

- **[PASS]** Transfer efficiency: 93% — Only 354 KB of potential savings identified. Your page is well-optimized for size.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/c89eb169-36f5-6d32-428b-7fe0b0d43f5a*