Five pillars, twenty points each, one hundred total. Every point traces back to a
named source — nothing here is a vibe.
- Google PageSpeed Insights v5 — page weight, image and code
efficiency, render blocking, request count, server response time, caching headers
and the full Lighthouse accessibility audit.
- Green Web Foundation Greencheck v3 — whether your host is in the
verified green hosting dataset.
- Sustainable Web Design model v4, via CO2.js — grams of CO₂e per
visit, rated against the model's published percentile bands.
- Your own answers — plugin count, CDN and caching, because no
external tool can see those reliably.
Two honest limits. Automated accessibility testing catches roughly a third of real
barriers, so a strong Inclusive Access score means no obvious failures rather than a
clean bill of health. And this scans one page, not your whole site — a heavy page
elsewhere won't show up here.