Reproducible benchmark harness that builds the same deterministic sample content across static site generators (Astro, Eleventy, Hugo, Jekyll) and reports cold build time, warm rebuild time, and output size (raw + gzipped). Detects installed toolchains and honestly skips the rest — never fakes results. Zero dependencies, Node 20+.
Grades any static-site build (Astro, Hugo, Eleventy, Jekyll, Next, Nuxt, Gatsby) for production readiness — broken links, missing meta, mixed content, CLS-risk images, dead anchors, oversized bundles. Zero-dep CLI + GitHub Action, JSON/Markdown/SARIF output.