# BeaverCheck Audit Report — https://nature.org

**Date:** April 21, 2026  
**URL:** https://nature.org  
**Overall Grade:** C (73/100)  
**Report:** https://beavercheck.com/results/f3d51266-4075-4fe2-9d8c-197cfc4480cd

## 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]** 4 image-only link(s) without alt text — Accessibility > Link & Button Quality
5. **[WARNING]**  is missing width/height — may cause layout shift — Performance > Image Optimization

---

## Lighthouse Scores

| Category | Score |
|----------|-------|
| Performance | 50 |
| Accessibility | 100 |
| Best Practices | 96 |
| 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 60 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 13 external resources have SRI*

- **[WARNING]** External script from www.youtube.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from player.vimeo.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from www.youtube.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from tags.tiqcdn.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from rum.hlx.page lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External link from cdn.jsdelivr.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from maps.googleapis.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn-4.convertexperiments.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from aaf1a18515da0e792f78-c27fdabe952dfc357fe25ebf5c8897ee.ssl.cf5.rackcdn.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 aaf1a18515da0e792f78-c27fdabe952dfc357fe25ebf5c8897ee.ssl.cf5.rackcdn.com lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.jsdelivr.net lacks integrity attribute — Without SRI, if this CDN is compromised, attackers could inject malicious code.
- **[WARNING]** External script from cdn.jsdelivr.net 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 — 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 (D — 45/100)

*2.4 MB transferred, 81 requests*

- **[INFO]** Page weighs 6.4 MB (2.4 MB transferred)
- **[WARNING]** JavaScript is 1.1 MB — consider code splitting or lazy loading — Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
- **[INFO]** CSS is 350 KB — consider purging unused styles — Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
- **[INFO]** 81 HTTP requests
- **[INFO]** Estimated 0.50 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 (2.4 MiB of 2.4 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)

*15 images, 0 KB saveable*

- **[WARNING]** https://www.nature.org/content/dam/tnc/nature/en/l... 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://www.nature.org/content/dam/tnc/nature/en/i... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://www.nature.org/content/dam/tnc/nature/en/i... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://www.nature.org/content/dam/tnc/nature/en/i... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.
- **[WARNING]** https://www.nature.org/content/dam/tnc/nature/en/i... is missing width/height — may cause layout shift — Set explicit width and height to prevent CLS.

### JS Execution Cost (D — 40/100)

*3261ms total JS execution*

- **[WARNING]** https://www.nature.org/en-us/: 1382ms CPU time
- **[WARNING]** Unattributable: 425ms CPU time
- **[WARNING]** https://www.nature.org/etc.clientlibs/tnc/clientli...: 417ms CPU time
- **[INFO]** https://www.nature.org/etc.clientlibs/tnc/clientli...: 249ms CPU time
- **[INFO]** https://cdn-4.convertexperiments.com/v1/js/1003489...: 215ms CPU time
- **[WARNING]** Third-party scripts: 3261ms (100% of total)

### Font Loading (A+ — 100/100)

*14 fonts (134 KB)*

- **[INFO]** 14 font(s) use font-display: swap (FOUT risk but functional)

### JS Bundles (F — 20/100)

*22 scripts, 685 KB unused*

- **[WARNING]** https://www.nature.org/etc.clientlibs/tnc/clientli...: 366 KB unused (74%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://maps.googleapis.com/maps/api/js?key=AIzaSy...: 103 KB unused (57%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://www.nature.org/etc.clientlibs/tnc/clientli...: 60 KB unused (81%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn.jsdelivr.net/gh/ableplayer/ableplayer@...: 58 KB unused (86%) — Consider code splitting or tree shaking to reduce unused code.
- **[WARNING]** https://cdn-4.convertexperiments.com/v1/js/1003489...: 51 KB unused (58%) — Consider code splitting or tree shaking to reduce unused code.
- **[INFO]** Total unused JavaScript: 685 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)

*1 hints, 0 missing preconnects*

- **[PASS]** Page uses 1 resource hint(s)

### Page Weight Inventory (F — 30/100)

*81 resources · 2.4 MB · 685 KB savings available*

- **[WARNING]** Page weight 1.4 MB over 1MB target
- **[INFO]** ~685 KB of savings available
- **[WARNING]** 80 third-party resources (100% of weight)
- **[INFO]** 3 resources over 200KB

### 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 (F — 40/100)

*149 links checked, 68 healthy, 81 broken*

- **[CRITICAL]** 68 of 149 links are healthy
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/icons/genera... — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/themes/n... — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/granite/... — Found in <script src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/vendor.m... — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/common.m... — Found in <link href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/template... — Found in <link href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/interstitialRedirectModalURL — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/ — Found in <a href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/logos/tnc-lo... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/logos/tnc-lo... — Found in <img src>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-priorities/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-priorities/tackle... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-priorities/protec... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-priorities/provid... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-insights/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-insights/perspect... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-insights/reports/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/what-we-do/our-insights/data-and... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/our-people/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/our-science/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/accountability/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/how-we-work/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/our-history/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/africa/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/asia-paci... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/canada/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/caribbean/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/europe/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/india/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/latin-ame... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/united-st... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/get-involved/how-to-help/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/get-involved/how-to-help/volunteer/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/get-involved/how-to-help/events/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/get-involved/how-to-help/carbon-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/get-involved/how-to-help/places-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/how-we-work/... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/membership-and-giving/donate-to-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/membership-and-giving/donate-to-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/membership-and-giving/donate-to-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/membership-and-giving/donate-to-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/membership-and-giving/donate-to-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/membership-and-giving/donate-to-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/get-involved/how-to-help/earth-day/ — Found in <a href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/icons/2030-o... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/icons/2030-o... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/icons/2030-o... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/icons/2030-o... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/icons/2030-o... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/content/dam/tnc/nature/en/icons/2030-o... — Found in <img src>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/united-st... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/where-we-work/united-st... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/magazine/magazine-articles/inter... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/magazine/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/membership-and-giving/earth-day-... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/magazine/magazine-articles/polli... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/how-we-work/... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/featured-news/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/contact-us/ — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/faqs/ — Found in <a href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/assets/r... — Found in <img src>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/accountabili... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/accountabili... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/accountabili... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/accountabili... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/accountabili... — Found in <a href>. Returns HTTP 403.
- **[CRITICAL]** Broken link: https://nature.org/en-us/about-us/who-we-are/accountabili... — Found in <a href>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/vendor.m... — Found in <script src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/granite/... — Found in <script src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/common.m... — Found in <script src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/granite/... — Found in <script src>. Returns HTTP 403.
- **[WARNING]** Broken link: https://nature.org/etc.clientlibs/tnc/clientlibs/template... — Found in <script src>. Returns HTTP 403.

### 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+ — 100/100)

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

- **[INFO]** og:title is short (22 characters) — Ideal length is 25–60 characters for social sharing 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+ — 100/100)

*2 A records, 33 ms lookup*

- **[PASS]** Resolves to 2 IPv4 address(es)
- **[INFO]** No IPv6 (AAAA) records
- **[PASS]** 4 nameserver(s) configured
- **[PASS]** 2 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: 33 ms

### Redirect Chain (B — 70/100)

*2 redirect(s), 768 ms total*

- **[WARNING]** 2 redirects before reaching final URL — Each redirect adds latency. Try to minimize the chain to 1 hop.
- **[INFO]** WWW normalization redirect
- **[INFO]** Redirect overhead: 768 ms total

### 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 (A+ — 100/100)

*robots.txt present, sitemap with 3 URLs*

- **[PASS]** robots.txt is present
- **[PASS]** sitemap.xml is present
- **[PASS]** sitemap.xml is valid XML
- **[PASS]** sitemap.xml contains 3 entries
- **[PASS]** Sitemap index with 3 child sitemaps
- **[PASS]** robots.txt references sitemap

### URL Variants (A+ — 100/100)

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

- **[PASS]** HTTP correctly 301-redirects to HTTPS

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

*nature.org — via Amazon Registrar, Inc., 30 years, 4 months old, hosted on AWS*

- **[PASS]** Domain registered until May 16, 2030 (4 years, 1 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: Amazon Registrar, Inc.
- **[WARNING]** Registrar lock is NOT enabled — The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
- **[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
- **[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.

### Cookie & Tracker Inventory (A+ — 100/100)

*0 cookies · 5 trackers · 0 pre-consent*

- **[INFO]** 5 third-party tracker(s) detected on page

---

## Legal

### Legal Page Ecosystem (C — 60/100)

*2 of 7 expected legal pages detected*

- **[PASS]** Privacy Policy detected — Found at https://policies.google.com/privacy, linked from footer.
- **[PASS]** Terms of Service detected — Found at https://policies.google.com/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.
- **[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 The Nature Conservancy Terms of Use | Privacy Poli*

- **[PASS]** Copyright notice is up to date — Copyright notice is up to date: © 2026 The Nature Conservancy Terms of Use | Privacy Poli
- **[PASS]** Copyright holder: The Nature Conservancy Terms of Use | Privacy Poli

### 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]** HIPAA indicators detected (weak confidence) — Indicators suggesting HIPAA may be relevant: Text mentions: phi. Health Insurance Portability and Accountability Act — protects sensitive patient health information.

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

---

## Accessibility

### Landmark Structure (A+ — 100/100)

*6 landmarks*

- **[PASS]** <main> landmark present
- **[PASS]** 1 <nav> landmark(s) found
- **[PASS]** Skip navigation link present

### Heading Hierarchy (A+ — 100/100)

*33 headings*

- **[PASS]** Single H1 present

### Alt Text Quality (A+ — 100/100)

*All 32 images OK*

- **[PASS]** 6 decorative image(s) correctly marked
- **[PASS]** 26 image(s) with good alt text

### Form Accessibility (A+ — 100/100)

*All 9 controls labeled*

- **[PASS]** 9 control(s) properly labeled

### Link & Button Quality (C — 68/100)

*138 links, 12 buttons — all OK*

- **[CRITICAL]** 4 image-only link(s) without alt text — Image-only links need alt text on the image (or aria-label on the link) so screen readers can announce them.
- **[WARNING]** 12 link(s) open in new tab without warning — Add '(opens in new tab)' to link text or aria-label.
- **[PASS]** 122 link(s) with descriptive text

---

## UX

### 404 Error Page (F — 5/100)

*HTTP 403, bare page*

- **[WARNING]** Unexpected status code: HTTP 403 — Expected HTTP 404 but received 403. This may confuse search engine crawlers.
- **[WARNING]** Bare server default 404 page — The 404 page has no custom styling. Users hitting a broken link see a generic error with no way to navigate back. Add a custom 404 page with your site navigation and a search bar.

### Favicon & Branding (F — 30/100)

*2 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

### 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 (D — 40/100)

*No dark mode signals*

- **[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 — 30/100)

*1 navigation pattern(s)*

- **[PASS]** Skip navigation link detected
- **[PASS]** 1 navigation landmark(s) detected

---

## SEO

### Canonical URL (A+ — 95/100)

*Properly configured*

- **[PASS]** Canonical tag present
- **[PASS]** Canonical is self-referencing
- **[PASS]** Canonical matches final URL after redirects
- **[PASS]** Canonical target reachable (self-referencing)
- **[INFO]** Canonical points to a different domain

### Meta Tags (A+ — 100/100)

*Title optimized*

- **[PASS]** Page title is set
- **[PASS]** Title length (60 chars) is optimal
- **[PASS]** Title and H1 are well-aligned

### Content Depth (A — 85/100)

*1375 words, Difficult*

- **[PASS]** Page has 1375 words — good depth for search engines
- **[INFO]** Text-to-HTML ratio is 4% — Very low ratio suggests heavy framework overhead or boilerplate.
- **[INFO]** Reading level: Difficult (grade 12)

### Internal Links (A+ — 100/100)

*92 internal, 46 external*

- **[PASS]** 92 internal links (67%)
- **[PASS]** 100% of links use descriptive anchor text
- **[INFO]** 92 internal / 46 external links

### Image SEO (A+ — 100/100)

*32 images, 32 descriptive filenames*

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

### Hreflang

*0 hreflang tags*


---

## Sustainability

### CO2 Per Page Load (B — 70/100)

*0.68g CO2 per view*

- **[INFO]** 0.68g CO2 per page view — This page transfers 2.4 MB, producing an estimated 0.68g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.13g, network 0.12g, end-user device 0.43g.
- **[INFO]** At 10,000 monthly views: 81.2 kg CO2/year — With 10,000 page views per month, this page would generate approximately 81.2 kg of CO2 annually — equivalent to charging 10150 smartphones.

### Green Hosting (D — 40/100)

*Not green*

- **[INFO]** No confirmed renewable energy commitment detected — Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
- **[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 29 KB (vs 2446 KB first visit). 78 of 81 resources are served from browser cache, saving 0.67g CO2 per repeat visit.
- **[INFO]** Repeat visit: 0.01g CO2 (first visit: 0.68g)

### Carbon Budget (D — 50/100)

*52th percentile*

- **[WARNING]** 0.68g CO2 — above the median website (0.60g) — Heavier than an estimated 48% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
- **[INFO]** Estimated 52th percentile — Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

### Transfer Efficiency (C — 60/100)

*72% efficient*

- **[WARNING]** Transfer efficiency: 72% — An estimated 684 KB (28%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 684 KB of unused JavaScript. This wasted data produces 0.19g of unnecessary CO2 per page view.

---

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*Generated by [BeaverCheck](https://beavercheck.com) — https://beavercheck.com/results/f3d51266-4075-4fe2-9d8c-197cfc4480cd*