Trust & Certifications
Every claim on this page is backed by independent third-party verification. Click any link to verify for yourself.
Code Quality
Our website passes the strictest industry standards for HTML, CSS, and accessibility.
W3C CSS Validated
All stylesheets pass W3C CSS Validation with zero errors. Standards-compliant code ensures consistent rendering across all browsers.
Verify on W3CW3C HTML5 Validated
All pages pass W3C Nu HTML Checker with zero errors. Semantic, accessible markup that search engines and screen readers understand.
Verify on W3CWAVE Accessibility
Zero errors on WebAIM WAVE evaluation. Our site meets WCAG accessibility standards so everyone can use it.
Verify on WAVEPerformance
Speed matters. Our site is optimized for fast loading on any device, verified by Google PageSpeed Insights.
Mobile Performance
Desktop Performance
Core Web Vitals
FCP 2.7s · First Contentful Paint
LCP 2.7s · Largest Contentful Paint
TBT 210ms · Total Blocking Time
CLS 0.009 · Cumulative Layout Shift
SI 2.7s · Speed Index
Security & Compliance
Your data is protected with industry-standard security measures and regulatory compliance.
TrustScan Verified
Independent security audit confirms proper security headers, no vulnerabilities, and safe browsing practices.
Security Headers
HSTS · HTTPS enforced, no downgrade
CSP · Content Security Policy active
X-Frame-Options · Clickjacking protection
X-Content-Type · MIME sniffing prevention
Referrer-Policy · Privacy-preserving
EU AI Act Compliance
We disclose our use of AI (DeepSeek) for content generation, as required by the EU Artificial Intelligence Act. Full transparency about AI-generated content, data sources, and quality controls.
Read Privacy PolicyData Authority
Our planting recommendations are built on official, peer-reviewed climate data sources — not guesswork.
USDA PHZM
Official USDA Plant Hardiness Zone Map data. We use the authoritative 2012/2023 zone classifications to determine what grows in your area.
Open-Meteo ERA5
Climate data from ECMWF ERA5 reanalysis (9km grid), processed by Open-Meteo. 30-year historical records (1991–2020) for accurate frost dates and growing season analysis.
30-Year Climate Records
Every report uses three decades of daily temperature data to calculate reliable first/last frost dates, growing degree days, and seasonal planting windows for your exact location.
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