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SSR Demo

Edge Computing

This page is server-rendered at Cloudflare's edge โ€” dynamic content without client JavaScript.

Demo mode: Values below show the shape of live Cloudflare edge data. When deployed as a Cloudflare Worker with SSR, these come from real request headers.

Your Request Info

Country
US (via cf-ipcountry)
City
San Francisco (via cf-ipcity)
Edge Colo
SFO (via cf-ray)
IP Address
203.0.113.42 (via cf-connecting-ip)
Language
en-US (via accept-language)
Rendered At
At request time โ€” zero cache

How It Works

Opt-in SSR

Set export const prerender = false in the page frontmatter. This single page renders on the server; all others remain static HTML.

Cloudflare Headers

Cloudflare automatically adds cf-ipcountry, cf-ipcity, and cf-ray to every request. We read them in Astro's server frontmatter at the edge.

Zero Client JS

Even though this page is server-rendered, it ships zero JavaScript to the browser. Dynamic data is baked into the HTML at the edge โ€” no client hydration.