Astro & island architectures: build fast and SEO friendly websites
summary
Astro 2.0 is presented as a framework for building fast, SEO-friendly sites by pre-rendering pages (SSG) so they can ship zero JavaScript initially, then selectively rehydrating interactive parts using island/partial hydration. The demo shows fetching articles and YouTube playlists at build time, optional SSR via an adapter, automatic image optimization (reducing megabytes to kilobytes), using React/Vue components with client:load, client:idle and client:media directives, deploying to Vercel, and noting limitations around microfrontend scenarios.
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chapters (16)
- 0:00Astro & island intro
- 3:40SPA rendering problems
- 5:07Static rendering limits
- 7:39What is Astro
- 9:25Island architecture & hydration
- 12:55Create Astro project
- 15:11Layout components
- 17:59Data fetching with SSG
- 20:48Vanilla JS interactivity
- 21:51Hydration in Astro
- 23:43Island architecture demo
- 26:37React in Astro
- 27:43Blog with Markdown
- 30:13Deploy on Vercel
- 30:55Astro pros and cons
- 33:33Q&A
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