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One-page business website kit

A config-driven static site kit: one file describes the business, one command builds a fast, findable one-page site with WhatsApp and call buttons.

Status: Ready for client builds
Related service: Web design & development
Stack: Astro
sharp
vanilla JS (~1 KB)
schema.org JSON-LD
any static host

DemoDemo presets. The businesses, numbers and photos shown are placeholders, not clients.

Results

Lighthouse mobile: performance, accessibility, best practices, SEO: 100 × 4Lighthouse mobile: performance, accessibility, best practices, SEO
presets: clinic, coaching, café, SaaS: 4presets: clinic, coaching, café, SaaS
whole built site per preset, placeholder images included: ~90–130 KBwhole built site per preset, placeholder images included
of JavaScript per page: ~1 KBof JavaScript per page

Source: site-template README and lighthouse.json; demo builds re-run 2026-09-24.

The problem

A clinic, coaching centre or café needs a site that loads fast on a mid-range phone, turns visitors into WhatsApp messages and calls, and shows up properly on Google, in 48 hours.

What we built

Everything comes from one file, site.config.json. Four presets (clinic, coaching, café, SaaS) cover the common layouts.
The build validates the config first: it stops on missing essentials and warns on placeholder phones, emails, URLs, over-long titles and any placeholder image still in use.
Output is one HTML file with inlined CSS and about 1 KB of JavaScript, with no web fonts.
The Google Map loads only when tapped, which keeps about 500 KB of Maps code off the first load.
The contact form composes a WhatsApp message or email: no backend, nothing stored.

Why a kit and not a theme

A theme gives you a look. A kit gives you a repeatable delivery: the same checks, structured data and performance on every site, and a build that refuses to ship with placeholder content still in it.

Demo screens

Demo clinic site on a phone: headline, WhatsApp booking button and call button. — Clinic preset

Demo coaching centre site on a phone with a demo-class call to action. — Coaching preset

Demo café site on a phone with serif headings and a reserve-a-table button. — Café preset

Demo SaaS landing page on a phone, dark theme, with a free-trial button. — SaaS preset

Demo clinic site on a laptop screen. — Clinic preset on a laptop

Demo café site on a laptop screen. — Café preset on a laptop

Demo coaching centre site on a laptop screen. — Coaching preset on a laptop

Demo SaaS landing page on a laptop screen. — SaaS preset on a laptop

What it doesn't do

Written down here so nobody finds out later.

Photos and copy come from the client; the kit only makes them fast and tidy.
Google ranking depends on Google. The kit gets the technical basics right; it can't promise a position.

Want something like this?

Tell us what you need. You get a fixed price, or a short scoping call, within 48 hours.

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