Performance & visibility
Web Development & SEO
in Briançon
A high-performance website is not enough if it is invisible on Google. At Altilink, development and search engine optimisation are inseparable: every line of code is built for speed and visibility.
Astro: the fastest framework on the market
We develop with Astro, a framework that generates pure static pages — zero client-side JavaScript by default. The result: load times under 1 second and a systematic Lighthouse score of 100/100.
Unlike WordPress or React sites that send megabytes of JavaScript to the browser, an Astro site delivers only the strict minimum: HTML, optimised CSS, and compressed images.
Advanced technical optimisation
- AVIF + WebP images — Next-generation formats, 10x lighter than JPEG
- Brotli compression — Every file pre-compressed at build time
- PurgeCSS — Only the CSS actually used is delivered to the browser
- Terser — Advanced JavaScript minification
- Smart prefetch — Next pages are preloaded on hover
- Immutable cache — Hashed assets with 1-year cache
SEO built in from the first line
Search engine optimisation is not a plugin added as an afterthought. It is structural:
- Semantic HTML — <main>, <nav>, <article> tags, H1-H6 hierarchy
- Schema.org JSON-LD — Structured data for Google rich snippets
- Optimised meta tags — Title, description, Open Graph, Twitter Cards
- XML Sitemap — Automatically generated with hreflang for multilingual
- SEO images — Descriptive naming, alt text, modern formats
- Core Web Vitals — LCP < 1.5s, CLS = 0, INP < 200ms
Local SEO: Briançon and Hautes-Alpes
For local businesses, local SEO is decisive. We optimise every website so your clients find you when they search for your services in the valley:
- Schema LocalBusiness — Address, opening hours, service area indexed by Google
- Geographic pages — Content targeted at Briançon, Serre Chevalier, Hautes-Alpes
- Google Business Profile — NAP consistency (Name, Address, Phone)
- Internal linking — Links between pages to distribute SEO authority
Native GDPR = SEO advantage
Our websites load no external resources: no Google Fonts, no CDN, no trackers. Fewer network requests = faster loading = better Google ranking. Respecting privacy is also a performance lever.
Concrete results
Our local clients benefit from optimal visibility on Google for their business queries:
- Eau Petit Pont — "restaurant Serre Chevalier"
- Rond Point — "sandwich shop Briançon"
- Yass.Barber — "barber Briançon"
- Ecophone — "smartphone repair Briançon"
Your high-performance website from €18/month
Fast development, built-in SEO, eco-friendly hosting included.