Edge nativeZero config

One DNS record.
International SEO.

A Cloudflare Worker, a nightly cron, and a KV cache. No origin changes, no JavaScript injected at runtime, ~1ms latency.

Architecture

Cloudflare Worker

reads ←

Cloudflare KV cache

writes ↑

Nightly Cron Job

crawl → DeepL → Claude → KV

~1ms latency per request. Zero AI calls at runtime.

The Worker

A single edge function classifies the request, reads from KV, fetches the origin, and injects SEO.

// Request: GET de.clientshop.com/scarpe-uomo

// 1. Classify: real user? Googlebot? GPTBot?
// 2. Read KV → seo::DE::https://clientshop.com/scarpe-uomo
// 3. Fetch origin silently
// 4. Inject: <title>, <meta description>, hreflang, JSON-LD
// 5. Serve → x-locra: hit | x-locra-lang: de

The Cron Job

Runs nightly at 02:00 UTC. Crawls, hashes, translates, optimizes, stores.

①Crawl /sitemap.xml → extract all URLs

②Hash-compare HTML → skip unchanged pages (~90% skip rate)

③Extract: title, h1, meta description, first 150 words

④DataForSEO → keyword intent + search volume for target country

⑤DeepL → bulk translate (~€0.0001/page)

⑥Claude → rewrite title (≤60 chars) + description (120–155 chars) using real target keywords

⑦Store in KV with 30-day TTL

KV data structure

Three namespaces. Edge-replicated globally.

seo::DE::https://clientshop.com/scarpe-uomo  →  { title, description, h1, schema }
config::clientshop.com  →  { languages, plan, origin, pageLimit }
prerender::v1::https://...  →  HTML string (24h TTL)

What Google sees

hreflang tags are injected on every page, even before translation is ready. Google discovers all language variants from day one.

<link rel="alternate" hreflang="it" href="https://blumare.it/"/>
<link rel="alternate" hreflang="en" href="https://en.blumare.it/"/>
<link rel="alternate" hreflang="de" href="https://de.blumare.it/"/>
<link rel="alternate" hreflang="x-default" href="https://blumare.it/"/>

What AI crawlers see

GPTBot, ClaudeBot, and PerplexityBot receive clean Markdown automatically. No config needed.

Raw HTML

<html><head><script src="/app.js"></script>...
<div className="wrapper_x9z"><nav>...
<h1 className="title__primary">Boat Tours</h1>

Clean Markdown