SEO Programmatic

SEO & Programmatic Pages

360Ghar's growth engine is a programmatic SEO (pSEO) system that generates hundreds of city/intent/type landing pages, faceted BHK/budget/amenity pages, locality pages, sitemaps, RSS feeds, and AI-discovery artifacts at build time. Pages are prerendered with Puppeteer so crawlers receive fully rendered HTML with structured data, hreflang alternates, and internal links.

Key Files

File	Role
src/pages/landing/Landing.jsx	Dynamic landing page /:citySlug/:intent/:type
src/pages/landing/FacetLanding.jsx	Faceted landing pages (BHK / budget / amenity)
src/pages/localities/LocalityTemplate.jsx	Locality template page
src/seo/indexationPolicy.js	Approved cities, static routes, budget facets, prerender seeds
src/seo/structuredData.js	JSON-LD generators (Breadcrumb, FAQ, HowTo, etc.)
src/seo/aiDiscovery.js	llms.txt, ai.txt, API catalog, LLM feed builder
src/seo/siteMetadata.js	Default title, description, OG image
src/seo/toolSchemas.js	Tool-page structured data
src/utils/internalLinks.js	City normalization, BHK/budget/locality link builders
src/utils/landingKeywords.js	Landing/facet keyword builders
src/utils/propertyTaxonomy.js	Property type label/slug normalization
scripts/generate-sitemaps.mjs	Static + landing sitemaps
scripts/generate-dynamic-sitemaps.mjs	Property + locality sitemaps
scripts/generate-locality-sitemap.mjs	Locality sitemap
scripts/generate-datahub-sitemap.mjs	Data hub sitemap
scripts/ingest-gurgaon-entities.mjs	Gurgaon entity ingestion
scripts/merge-entities.mjs	Merge raw entities
scripts/build-localities-json.mjs	Build localities.json
scripts/build-localities-index.mjs	Build localities-index.json
scripts/write-ai-discovery.mjs	Write llms.txt / ai.txt / llm-feed.json
scripts/generate-rss.mjs	RSS feed generation
scripts/generate-prerender-routes.mjs	Build prerender route manifest
scripts/prerender-pages.mjs	Puppeteer prerendering

Dynamic Landing Routes

Defined in src/App.jsx and governed by indexationPolicy.js:

Route	Page	Example
/:citySlug/:intent/:type	Landing.jsx	/gurgaon/buy/flats
/:citySlug/:intent/:type/:bhk	FacetLanding.jsx	/gurgaon/rent/flats/2-bhk
/:citySlug/:intent/:type/budget/:budget	FacetLanding.jsx	/gurgaon/buy/flats/budget/under-50-lakhs
/:citySlug/:intent/:type/amenity/:amenity	FacetLanding.jsx	/gurgaon/rent/flats/amenity/swimming-pool
/locality/:slug	LocalityTemplate.jsx	/locality/dlf-phase-1-gurgaon

Landing.jsx

Validates citySlug against approvedIndexableCitySlugs, normalizes via normalizeCitySlug(), and checks isIndexableCitySlug() for the noindex decision. intent is constrained to buy | rent | pg; type is normalized through normalizePropertyTypeToken() and getPropertyRouteSlug(). The page:

• Builds a property search query (buildPropertySearchQuery) and embeds live results.
• Generates FAQ structured data via buildLandingFaqs() (8 Q&As, i18n-aware with Hindi verb variants).
• Emits Breadcrumb + FAQ JSON-LD.
• Renders related links (other intents, BHK facets, budget facets, localities) via getRelatedLandingLinks().
• Includes AiFactSheet for AI crawlers.

FacetLanding.jsx

Handles three facet types in one component:

• BHK - VALID_BHKS = ['1-bhk','2-bhk','3-bhk','4-bhk','5-bhk']
• Budget - rent (under-10k, under-15k, under-20k) and buy (under-50-lakhs, under-80-lakhs, under-1-crore) from indexableBudgetFacets
• Amenity - arbitrary amenity slugs

isIndexableFacetLanding() decides noindex. FAQs are built by buildFacetFaqs() with Hindi action variants. Invalid combinations redirect via <Navigate>.

Entity Ingestion Pipeline

scripts/ingest-gurgaon-entities.mjs fetches sitemaps from Magicbricks, SquareYards, NoBroker, and CommonFloor, extracts <loc> URLs matching gurgaon|gurugram, and decodes locality/society/project names from the URL slugs. Output: scripts/reports/entity-raw.json.

The pipeline (run by npm run build:entities):

1. ingest-gurgaon-entities - fetch external sitemaps -> entity-raw.json
2. merge-entities - dedupe + merge raw entities
3. build-localities-json - src/data/localities.json
4. build-localities-index - src/data/localities-index.json (sorted, slugged)
5. generate-locality-sitemap - public/sitemap-localities.xml

isPlaceholderName() filters out junk tokens like povp abc123. Each entity carries confidence and sourceCoverage for quality scoring.

Sitemap Generation

npm run build:sitemaps runs four scripts:

Script	Output
generate-sitemaps.mjs	sitemap.xml (index), sitemap-static.xml, sitemap-landing.xml
generate-locality-sitemap.mjs	sitemap-localities.xml
generate-datahub-sitemap.mjs	sitemap-datahub.xml
generate-dynamic-sitemaps.mjs	sitemap-properties.xml + any dynamic batches

hreflang Alternates

buildAlternates(enPath) emits en, hi, and x-default for every URL. Each English URL is paired with its /hi/ Hindi twin in the same <url> block, so Google can serve the correct locale.

Pruning + Batching

• src/data/pseo-prune-list.json - patterns (path, path/*, or regex) to exclude.
• SITEMAP_MAX_LANDING_PER_CITY / SITEMAP_BATCH env vars cap the count per city for phased releases.
• validateSitemapUrl() skips redirected patterns (/gurugram/, /apartments).

AI Discovery (write-ai-discovery.mjs)

buildAiDiscoveryArtifacts() from src/seo/aiDiscovery.js produces:

Artifact	Path	Purpose
llms.txt	public/llms.txt	Concise LLM-readable site summary
llms-full.txt	public/llms-full.txt	Expanded version
ai.txt	public/.well-known/ai.txt	AI crawler policy
api-catalog	public/.well-known/api-catalog	application/linkset+json API catalog
llm-feed.json	public/data/llm-feed.json	Structured feed enriched with top 50 localities + 20 societies

The script reads localities-index.json to enrich feed.top_localities and feed.top_societies and set metadata.total_localities / total_societies.

netlify.toml advertises these via Link headers on / (RFC 8288): api-catalog, service-doc, service-meta, mcp-server, agent-skills, llms-txt, openid-configuration.

RSS Feed (generate-rss.mjs)

Fetches blog posts and properties via fetchPaginatedCollectionParallel from scripts/lib/paginatedApi.mjs, plus localities from localities-index.json, and builds:

• public/rss.xml - main feed (blog + properties)
• public/rss/localities.xml - locality feed

Each item is XML-escaped and dated with toRfc2822(). Property titles synthesize a description from type, purpose, and locality.

Structured Data / JSON-LD

src/seo/structuredData.js generates:

• generateBreadcrumbStructuredData
• generateFaqStructuredData
• generateHowToStructuredData
• Tool-page schemas via src/seo/toolSchemas.js

These are emitted through <Helmet> in each page's SEO component (src/common/SEO.jsx).

Prerendering

scripts/generate-prerender-routes.mjs builds scripts/prerender-routes.json from indexableStaticRoutes, seedLandingPrerenderRoutes, seedLocalityPrerenderRoutes, and locality data. Each route has a waitForSelector / waitForText / waitForTitle so Puppeteer knows when the page is ready.

scripts/prerender-pages.mjs:

1. Spawns vite preview on 127.0.0.1:4317.
2. Launches headless Puppeteer (--no-sandbox on Linux for Netlify).
3. For each route, navigates, waits for the configured signal (60s timeout), sets window.__PRERENDER_INJECTED = { isPrerendering: true }, and serializes page.content() to dist/<route>.html.
4. Rewrites stylesheets to be non-blocking (strips duplicate <noscript> copies, converts media="print" preloads).

The isPrerendering flag is checked by authStore.initializeAuth, locationStore.initializeLocation, posthogService.init, and main.jsx to skip network calls during prerender.

SEO Pipeline

flowchart TD
    Ext[External sitemaps] --> Ingest[ingest-gurgaon-entities]
    Ingest --> Raw[entity-raw.json]
    Raw --> Merge[merge-entities]
    Merge --> LJ[localities.json]
    LJ --> LIdx[localities-index.json]
    LIdx --> LocTmpl[LocalityTemplate pages]
    LIdx --> AI[write-ai-discovery]
    LIdx --> RSS[generate-rss]
    Pol[indexationPolicy] --> Land[Landing + Facet pages]
    Land --> SM[generate-sitemaps]
    LIdx --> SM
    SM --> Sitemaps[sitemap-*.xml]
    Pol --> PR[generate-prerender-routes]
    Land --> PR
    LIdx --> PR
    PR --> PP[prerender-pages Puppeteer]
    PP --> Dist[dist/*.html]

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Cross-References

• Build Pipeline - how these scripts chain in npm run build
• Internationalization - Hindi hreflang twins
• Authentication - prerender skips auth init