<?xml version="1.0" encoding="UTF-8"?>
<!--
  Master sitemap index for bigsearchai.com.

  This is the single canonical entry point that crawlers (Google, Bing,
  LLM crawlers that read sitemaps) discover via robots.txt. It points at
  the per-category child sitemaps:

    /sitemap-pages.xml      static marketing + research routes
    /sitemap-merchants.xml  every published /b/<slug> Web4 merchant page
                            (Cloud Function: sitemapMerchants -> Firestore)

  Scale: /sitemap-merchants.xml auto-shards into ?page=N children once
  the published count exceeds 50,000 URLs (Sitemap protocol cap).
-->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <sitemap>
    <loc>https://bigsearchai.com/sitemap-pages.xml</loc>
    <lastmod>2026-05-26</lastmod>
  </sitemap>
  <sitemap>
    <loc>https://bigsearchai.com/sitemap-merchants.xml</loc>
    <lastmod>2026-05-26</lastmod>
  </sitemap>
</sitemapindex>
