seo-vertical-detect

Given the PageSnapshot, classify the site so the orchestrator can route conditional modules. Read references/routing.md for the signal table.

Inputs

Read-only over persisted data — no fetching: the homepage parsed (jsonld[], anchors[], metas[], hreflang[], <html lang>, text_sample) from <run_dir>/pages/<slug>.json, <run_dir>/crawl.json (route patterns, templates), <run_dir>/site/discovery.json (llms.txt presence), and the vertical_hints[] emitted by detect-platform.mjs in <run_dir>/profile.json (e.g. WooCommerce/Shopify → ecommerce; a docs generator → docs). Hints are signals, not verdicts — cite them in signals like any other evidence.

Method

Score each vertical from observable signals (not guesses):

• ecommerce — Product/Offer JSON-LD, cart/checkout/add-to-cart routes or buttons, price + currency elements, og:type=product.
• local-business — LocalBusiness JSON-LD, NAP block (name/address/phone), maps embed, opening hours, store-locator.
• blog-publisher — Article/BlogPosting JSON-LD, author bylines/author pages, RSS/Atom <link>, dated post archives.
• saas — pricing/signup/login routes, SoftwareApplication schema, feature/integration/docs pages.
• docs — docs/reference routes, sidebar/version nav, dense code blocks, present llms.txt.
• generic — none dominates.

A site can match several; return all that clear the threshold, ranked, plus a primary.

Locales: detect hreflang tags, <html lang>, and locale-prefixed routes (/es/, /fr/). If >1 locale, flag multilingual so M20 (hreflang) activates.

Output

{ "primary": "ecommerce", "also": ["blog-publisher"], "multilingual": true, "locales": ["en","es"],
  "signals": { "ecommerce": ["Product JSON-LD on /p/...", "cart route /cart"], "...": [] } }

Base every classification on a cited signal in signals — never label a vertical without evidence.