Services — Astro Development
Astro Development: Zero-JavaScript, Full Speed
Most marketing sites carry a framework tax: hundreds of kilobytes of JavaScript to render what is, in the end, text and images. As an astro development agency, we build the opposite — sites that ship zero JavaScript by default and spend their entire budget on design and speed.
What you get
Everything included, nothing vague
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Astro architecture, done idiomatically
Static-first pages, content collections, islands only where interaction truly demands them — Astro written the way its authors intended.
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Zero JavaScript by default
Pages ship as pure HTML and CSS. Scripts appear only for genuine features and stay inside a strict per-page budget.
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Perfect Lighthouse scores
100/100 performance targets on mobile, with Core Web Vitals — LCP, INP, CLS — budgeted before the first component is written.
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Rich motion without the cost
Scroll-driven and view-transition animation in modern CSS, with reduced-motion behavior handled properly.
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Clean integration points
Headless CMS, commerce back-end, forms, analytics — wired in without dragging their JavaScript onto every page.
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A codebase your team can hold
Documented components, plain conventions, no framework ceremony. Handover includes a written walkthrough.
The case for it
Why Astro — and when not
Astro renders everything to static HTML at build time and hydrates nothing by default. Interactive moments — a cart drawer, a filter, a quiz — load as isolated islands that wake up independently, so one widget never drags a framework onto every page. For marketing sites, storefront front-ends, editorial projects and launch pages, this is simply the correct architecture: a zero javascript website is faster, more stable and easier to maintain than the same design rendered client-side.
And when it isn't the right tool — a logged-in dashboard, a realtime app — we'll say so in the proposal rather than bend the stack to the invoice. That candor is the practical difference between hiring an Astro JS developer who lives in this framework and renting a generalist who tolerates it.
The result
What zero-JavaScript feels like
Pages appear in a single paint. Navigation feels like flipping pages in a magazine, not waiting for an app to boot. Battery and data budgets go untouched, old phones behave like new ones, and Lighthouse stops being a quarterly embarrassment and becomes a screenshot in your pitch deck. This page is itself the demo — view source. If your current site needs this architecture without a redesign, see Website Performance Rescue; for a ground-up brand build, start with custom web design & development.
Process & timeline
Four steps, all in writing
Typical timeline: 5–10 business days for a marketing site or storefront front-end.
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Brief — 5 minutes.
What you’re building, what it connects to, what “done” means. In writing, as always.
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Proposal — within 24 hours.
Architecture sketch, fixed scope, fixed price, fixed timeline — documented before work starts.
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Build.
Preview deployments every 2–3 days with a running changelog. Performance budgets enforced from day one.
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Launch & handover.
Production deploy, documentation, and 30 days of fixes. The repository is yours.
Stack & approach
Built on Astro, zero JavaScript by default
We work in Astro with TypeScript, modern CSS (custom properties, container queries, scroll-driven animation) and the platform itself — semantic HTML, native form behavior, real links. Integrations connect through build-time APIs or tiny islands: headless CMS for content editing, commerce platforms for checkout, GA4 for measurement, all kept off the critical path.
Hosting lands on a global CDN edge with immutable asset caching. Builds are reproducible, deploys take seconds, and there is no server to patch at 2 a.m.
From the portfolio
A 26-act entertainment catalog, engineered for speed and discretion
Read the SG Training Fit Entertainment case study
FAQ
Asked before every brief
What is Astro, and why do you build with zero JavaScript by default?
Astro is a modern web framework that ships pure HTML and CSS to the browser, adding JavaScript only where it's genuinely needed. We build with it because most marketing pages don't need a heavy JavaScript framework to display content, so cutting it out gives us 100/100 Google PageSpeed on mobile, sub-1.5s LCP, and zero layout shift. The result is a site that loads instantly and stays fast as it grows.
Does zero JavaScript mean my site can't have animations or interactive elements?
No. Most motion, hover effects, and transitions run on pure CSS with no JavaScript at all, and they stay smooth. When a page needs real interactivity, like a filterable product grid or a live search box, we add it as an isolated Astro island so the JavaScript loads only for that one component, not the whole page. You get the interactivity you want without dragging weight onto everything else.
What are Astro islands, and how do they keep the rest of the page fast?
An island is a single interactive component that gets its own small bundle of JavaScript, while everything around it stays static HTML. So a search bar, image carousel, or accordion can be fully interactive, but the header, copy, and footer ship zero JavaScript. This targeted approach is why an Astro site can be interactive where it counts and still hit top performance scores everywhere else.
When is Astro the wrong choice for my project?
Astro is the wrong tool for logged-in dashboards, real-time apps, and anything that behaves more like software than a website, such as an account portal, a live collaboration tool, or a complex admin panel. It's built for content-led marketing sites and storefront front-ends, where speed and SEO matter most. If your idea needs a full application framework instead, we'll tell you plainly rather than force a bad fit.
Can you connect Astro to a CMS, Shopify, forms, and analytics without slowing the site down?
Yes. We wire in a headless CMS, a Shopify storefront front-end, form handling, and GA4 analytics as clean integrations that don't push JavaScript onto every page. Content and product data are pulled in at build time or through isolated islands, so the marketing pages stay static and fast. You get self-editing, checkout, working forms, and real analytics without paying for it in load time.
Does shipping zero JavaScript hurt SEO or how well Google indexes the site?
No, it helps. Because the content ships as plain HTML rather than being assembled by JavaScript in the browser, Google sees the full page instantly with nothing to wait on or fail to render. On top of that, every build carries semantic HTML, structured data, clean URLs, sitemaps, canonical tags, and unique meta, and the speed itself is a ranking signal, so zero-JS is an SEO advantage, not a cost.