# BeaverCheck Audit Report — https://remix.run

**Date:** April 4, 2026  
**URL:** https://remix.run  
**Overall Grade:** B (80/100)  
**Report:** https://beavercheck.com/results/2d392bde-93bf-4b69-bc0e-e8fdb0846573

## 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. **[WARNING]** Cross-Origin-Embedder-Policy header is missing — Security > Security Headers
5. **[WARNING]** Cross-Origin-Opener-Policy header is missing — Security > Security Headers

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 84 |
| Accessibility | 96 |
| Best Practices | 100 |
| SEO | 100 |

---

## 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 38 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 1 external resources have SRI*

- **[WARNING]** External script from cdn.usefathom.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*

- **[INFO]** No security.txt found — Consider adding a security.txt at /.well-known/security.txt.
- **[PASS]** No sensitive files exposed

### Email Security (A+ — 100/100)

*DMARC: reject*

- **[PASS]** DMARC policy is reject — strongest 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 (A+ — 100/100)

*355 KB transferred, 27 requests*

- **[PASS]** Page weighs 520 KB (355 KB transferred)
- **[PASS]** 27 HTTP requests
- **[INFO]** Estimated 0.07 g CO2 per page load

### Third-Party Impact (A+ — 100/100)

*1% third-party, 0 ms blocking*

- **[INFO]** Third-party code accounts for 1% of page weight (3.1 KiB of 354.9 KiB)
- **[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 (A — 90/100)

*3 images, 0 KB saveable*

- **[PASS]** All images are well-optimized

### JS Execution Cost (B — 80/100)

*779ms total JS execution*

- **[WARNING]** https://remix.run/: 439ms CPU time
- **[INFO]** Unattributable: 232ms CPU time
- **[INFO]** https://remix.run/assets/press-mixin-DBJjXhO4.js: 107ms CPU time
- **[INFO]** Third-party scripts: 232ms (30% of total)

### Font Loading (A+ — 100/100)

*3 fonts (178 KB)*

- **[INFO]** 3 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (A+ — 100/100)

*15 scripts, 0 KB unused*


### 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)

*5 hints, 0 missing preconnects*

- **[PASS]** Page uses 5 resource hint(s)

---

## Content Quality

### Links (A — 95/100)

*34 links checked, 33 healthy, 1 broken*

- **[WARNING]** 33 of 34 links are healthy
- **[WARNING]** Broken link: https://remix.run/blog/rss.xml — Found in <link href>. Returns HTTP 500.

### Mixed Content (A — 90/100)

*1 HTTP resource(s) loaded on HTTPS page*

- **[WARNING]** HTTP meta loaded on HTTPS page — Modern browsers block or warn about HTTP resources on HTTPS pages. Change the URL to use HTTPS.

### Open Graph (A — 95/100)

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

- **[INFO]** Missing og:site_name — The og:site_name tag displays the website name in social previews.

### 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 — 90/100)

*4 A records, 274 ms lookup*

- **[PASS]** Resolves to 4 IPv4 address(es)
- **[INFO]** No IPv6 (AAAA) records
- **[PASS]** 2 nameserver(s) configured
- **[PASS]** 6 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
- **[WARNING]** DNS resolution is slow (274 ms) — Slow DNS adds latency to every page load. Consider a faster DNS provider.

### Redirect Chain (A+ — 100/100)

*No redirects — direct access*

- **[PASS]** No redirects — direct access

### 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 (B — 75/100)

*no robots.txt, no sitemap*

- **[INFO]** No robots.txt found — robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
- **[INFO]** No sitemap.xml found — A sitemap helps search engines discover and index your pages more efficiently.

### URL Variants (A+ — 100/100)

*www/non-www, trailing slash, HTTP→HTTPS*

- **[PASS]** www/non-www redirect configured correctly (preferred: non-www)
- **[PASS]** HTTP correctly 301-redirects to HTTPS

### Domain Intelligence (A+ — 100/100)

*remix.run — via MarkMonitor Inc., 7 years, 2 months old, hosted on Fastly*

- **[PASS]** Domain registered until Feb 28, 2028 (1 years, 11 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: Fastly

---

## 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]** <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

---

## Legal

### Legal Page Ecosystem (F — 0/100)

*0 of 7 expected legal pages detected*

- **[WARNING]** Privacy Policy not detected — No link matching common Privacy Policy URL patterns or link text was found. Most websites are expected to have a Privacy Policy, especially those collecting user data.
- **[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.
- **[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.
- **[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 Shopify*

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

### Regulatory Indicators

*0 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]** No specific regulatory indicators detected — No strong signals for GDPR, CCPA, ADA, PCI, HIPAA, or COPPA were found. This does not mean these regulations don't apply — it means we didn't detect common technical indicators.

### 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 (A+ — 100/100)

*Fastly (HIT)*

- **[PASS]** Site is served via Fastly CDN
- **[PASS]** CDN cache status: HIT

### HTTP Caching (A — 90/100)

*max-age=300 (5 minutes)*

- **[PASS]** Cache-Control header is set
- **[PASS]** Effective TTL: 5 minutes (max-age=300)
- **[INFO]** No ETag or Last-Modified header — Conditional requests (304 Not Modified) are not possible without validators.

---

## Accessibility

### Landmark Structure (A+ — 100/100)

*6 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 3 <nav> landmark(s) found
- **[PASS]** All <nav> elements are properly labeled
- **[PASS]** Skip navigation link present

### Heading Hierarchy (A+ — 100/100)

*6 headings*

- **[PASS]** Single H1 present

### Alt Text Quality (A+ — 100/100)

*All 2 images OK*

- **[PASS]** 1 decorative image(s) correctly marked
- **[PASS]** 1 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 1 controls labeled*

- **[PASS]** 1 control(s) properly labeled

### Link & Button Quality (A — 88/100)

*24 links, 1 buttons — all OK*

- **[WARNING]** 7 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 17 link(s) with descriptive text

---

## UX

### 404 Error Page (C — 55/100)

*HTTP 404, custom page*

- **[PASS]** Correct 404 status code returned
- **[PASS]** Custom styled 404 page

### Favicon & Branding (C — 55/100)

*5 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 (D — 40/100)

*Not found*

- **[INFO]** No web manifest found — No manifest at standard paths (/manifest.json, /site.webmanifest). A manifest is optional but enables PWA features like home screen installation and standalone display.

### Dark Mode Support (B — 70/100)

*Dark mode detected*

- **[PASS]** Dark-specific theme-color detected — A theme-color with media='(prefers-color-scheme: dark)' adapts the browser toolbar for dark mode.
- **[PASS]** prefers-color-scheme CSS detected in inline styles
- **[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 — 30/100)

*1 navigation pattern(s)*

- **[PASS]** Skip navigation link detected
- **[PASS]** 3 navigation landmark(s) detected

---

## 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 (A+ — 95/100)

*Title optimized*

- **[PASS]** Page title is set
- **[PASS]** Title length (48 chars) is optimal
- **[INFO]** Title and H1 have very different wording — Alignment helps users confirm they've reached the right page.

### Content Depth (C — 65/100)

*403 words, Difficult*

- **[PASS]** Page has 403 words of content
- **[INFO]** Text-to-HTML ratio is 4% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Difficult (grade 13)

### Internal Links (A+ — 100/100)

*6 internal, 18 external*

- **[PASS]** 6 internal links (25%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** 6 internal / 18 external links

### Image SEO (A+ — 100/100)

*2 images, 2 descriptive filenames*

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

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (A+ — 100/100)

*0.08g CO2 per view*

- **[PASS]** 0.08g CO2 per page view — This page transfers 0.3 MB, producing an estimated 0.08g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.00g, network 0.02g, end-user device 0.06g.
- **[INFO]** At 10,000 monthly views: 9.8 kg CO2/year — With 10,000 page views per month, this page would generate approximately 9.8 kg of CO2 annually — equivalent to charging 1230 smartphones.
- **[PASS]** Green hosting reduces data center emissions

### Green Hosting (A+ — 100/100)

*Green (both)*

- **[PASS]** Both hosting and CDN use renewable energy
- **[INFO]** Fly.io: Verified by the Green Web Foundation
- **[INFO]** Fastly: 100% renewable energy for edge network
- **[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)

*97% cached*

- **[PASS]** 97% reduction on repeat visits — Returning visitors download only 11 KB (vs 354 KB first visit). 26 of 27 resources are served from browser cache, saving 0.08g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.00g CO2 (first visit: 0.08g)

### Carbon Budget (A+ — 100/100)

*10th percentile*

- **[PASS]** 0.08g CO2 — below the sustainability target of 0.50g — Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
- **[INFO]** Estimated 10th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

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

*100% efficient*

- **[PASS]** Transfer efficiency: 100% — Only 0 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/2d392bde-93bf-4b69-bc0e-e8fdb0846573*