Web Development, SEO & GEO
in Briançon

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 Google PageSpeed 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

GEO: being cited by AI (ChatGPT, Perplexity, Google AI)

Your clients no longer search only on Google: they ask ChatGPT, Perplexity or Google AI Overviews. GEO (Generative Engine Optimization) prepares your site to be understood, cited and recommended by these AIs. At Altilink, it is included by default:

• llms.txt — A structured summary of your site, readable directly by language models
• Schema.org @graph + Speakable — Your key information marked up for AI extraction
• Granular robots.txt — Access explicitly opened to PerplexityBot, OAI-SearchBot, ChatGPT-User & co.
• Pure HTML, zero JavaScript — AI crawlers read your content as-is, no script execution needed

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"