A bilingual, edge-rendered marketing and lead-gen site for a Tenerife-Sur smart-home business — zero client-side JavaScript, a hand-built design system, and a curated shop of the gear we run in our own house.
A services site with nothing between visitor and quote.
StaySmart sells smart-home installation and consulting in Tenerife Sur — packages from €89 to €499, including a pack built for holiday lets. The site’s job is simple and commercial: explain the offer in Spanish and English, look premium, and convert a visit into a quote request that actually reaches the business.
We built it as pure server-side rendering on Cloudflare Workers with zero client-side JavaScript — every byte the visitor downloads is content, and the whole thing is dressed in "Cinematic Dusk", a CSS design system we built by hand for the brand.
Nothing here is framework-shaped. It is a custom-fit suit: a tiny router, rendered HTML, and a design system with a mood.
A hand-built CSS design system — twilight palette, self-hosted type, cinematic gradients — giving a local installer the finish of a much larger brand.
Full ES/EN i18n rendered server-side, so both languages are first-class and instantly indexable.
The quote form writes to D1 and notifies via Telegram and email — protected by a honeypot and a rate-limit binding rather than a CAPTCHA wall.
StaySmart didn't stop at installs. StaySmart Products is the brand's second arm — a curated shop of smart-home gear selected and tested by the people who fit it, with every price final, IGIC and customs included, and installation one click away. It runs as a thin SSR storefront over the pricing brain of our multi-brand commerce engine.
Zero client JavaScript is a feature with teeth: nothing to hydrate, nothing to break, nothing to track.
Every page renders on Cloudflare Workers through a custom tiny router — no framework runtime, no client bundle, response times that feel local because they are.
Honeypot fields plus a Workers rate-limit binding filter the bots while real customers never see a challenge.
Measurement without banners — the site respects visitors by architecture, which in 2026 is its own conversion optimisation.
StaySmart Services proves a point we like making: a small local business can have the fastest site in its market — bilingual, elegant and unbreakable, because there is simply nothing client-side left to break.