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Merged
pedropaulovc merged 1 commit into from
May 29, 2026
Merged

Self-host fonts and inline global CSS to cut render-blocking #27

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30 changes: 29 additions & 1 deletion astro.config.mjs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import { defineConfig, sessionDrivers } from "astro/config";
import { defineConfig, fontProviders, sessionDrivers } from "astro/config";
import cloudflare from "@astrojs/cloudflare";
import tailwindcss from "@tailwindcss/vite";

Expand All @@ -13,10 +13,38 @@ export default defineConfig({
// Cloudflare-KV session driver so no (id-less) SESSION KV binding is emitted
// into the generated deploy config.
session: { driver: sessionDrivers.memory() },
// Self-host the two webfonts (downloaded + subset at build time, served as
// static /_astro assets by the platform). This removes the render-blocking
// cross-origin Google Fonts stylesheet from the critical path; the <Font>
// component instead inlines @font-face CSS and preloads the body font.
fonts: [
{
provider: fontProviders.google(),
name: "Inter",
cssVariable: "--font-inter",
weights: ["400 800"],
styles: ["normal"],
subsets: ["latin"],
fallbacks: ["system-ui", "sans-serif"],
},
{
provider: fontProviders.google(),
name: "Playfair Display",
cssVariable: "--font-playfair",
weights: ["700 900"],
styles: ["normal", "italic"],
subsets: ["latin"],
fallbacks: ["Georgia", "serif"],
},
],
adapter: cloudflare({
// Plain <img> with build-emitted assets — no runtime image service / IMAGES binding.
imageService: "passthrough",
}),
// Inline the (small, ~6KB) global stylesheet into each page's <head> instead
// of emitting a render-blocking <link>. Pages are SSR'd per request, so there
// is no shared-CSS-cache benefit to give up, and FCP/LCP improve.
build: { inlineStylesheets: "always" },
vite: {
plugins: [tailwindcss()],
resolve: {
Expand Down
12 changes: 6 additions & 6 deletions src/layouts/Layout.astro
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
---
import { Font } from "astro:assets";
import "../styles/global.css";

interface Props {
Expand Down Expand Up @@ -101,12 +102,11 @@ const telemetryConfig = Astro.locals.telemetry?.clientConfig() ?? null;

<slot name="head" />

<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link
rel="stylesheet"
href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Playfair+Display:ital,wght@0,700;0,900;1,700;1,900&display=swap"
/>
{/* Self-hosted, served from /_astro — no cross-origin render-blocking
stylesheet. Inter is the body font, so preload it; the serif display
face is above-the-fold too, so preload it as well. */}
<Font cssVariable="--font-inter" preload />
<Font cssVariable="--font-playfair" preload />
</head>
<body>
<slot />
Expand Down
6 changes: 4 additions & 2 deletions src/styles/global.css
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Expand Up @@ -35,8 +35,10 @@
--color-paper: var(--paper);
--color-ink: var(--ink);
--color-electric: var(--electric);
--font-serif: "Playfair Display", Georgia, serif;
--font-sans: "Inter", system-ui, sans-serif;
/* Resolve to the self-hosted families registered via Astro's fonts config
(astro.config.mjs). Each var already carries optimized fallback metrics. */
--font-serif: var(--font-playfair, "Playfair Display", Georgia, serif);
--font-sans: var(--font-inter, "Inter", system-ui, sans-serif);
}

:root {
Expand Down
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