diff --git a/README.md b/README.md
index e215bc4..2efff98 100644
--- a/README.md
+++ b/README.md
@@ -34,3 +34,61 @@ You can check out [the Next.js GitHub repository](https://github.com/vercel/next
 The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
 
 Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.
+
+## Export Bundle (Landing ZIP)
+
+The Builder can export a production-ready ZIP that contains:
+
+- index.html, styles.css, app.js
+- assets/ hashed assets (optionally grouped by type)
+- site.webmanifest, robots.txt
+- Optional: sheets/ (Google Apps Script template)
+- Metadata files: assets.json, assets.index.json
+
+### Export Options UI
+
+- Manifest
+  - Name, Short Name, Start URL, Display (dropdown), Theme Color (HEX only)
+- Robots
+  - Disallow lines (textarea). Each line becomes a `Disallow:` rule.
+- Google Sheets Template Mode
+  - Auto: include when `form.actionUrl` is empty
+  - Include: always include
+  - Exclude: never include
+
+### site.webmanifest and robots.txt
+
+- `site.webmanifest` is derived from page data; Export Options can override fields.
+- `robots.txt` defaults to a permissive header and adds `Disallow` lines from UI.
+
+### Asset paths and grouping
+
+- AssetManager writes files to `assets/` with stable hash-based filenames.
+- Path strategy can be configured:
+  - `flat` (default): `assets/<hash>.<ext>`
+  - `grouped`: `assets/images/...`, `assets/fonts/...`, `assets/other/...`
+
+### assets.json
+
+Structured metadata for all assets. Example fields per entry:
+
+- originalName, mimeType, size
+- hash8, ext, zipPath
+- integrity: `sha256-<base64>` (placeholder, base64 of bytes)
+- group: `images|fonts|other`
+- referencedAt: array of `local:<originalName>` when referenced by the page
+
+### assets.index.json
+
+Simple index to quickly find assets by group:
+
+- images: string[] of zip paths
+- fonts: string[] of zip paths
+- other: string[] of zip paths
+
+### Google Sheets template (optional)
+
+- When included, ZIP contains:
+  - `sheets/Code.gs`: minimal Apps Script handler (Web App)
+  - `sheets/README.txt`: setup instructions
+- Inclusion is controlled by `sheetsMode` (Auto/Include/Exclude) and `form.actionUrl` in Auto mode.
diff --git a/components/BuilderClientPage.tsx b/components/BuilderClientPage.tsx
index a0b1e5d..d28bdff 100644
--- a/components/BuilderClientPage.tsx
+++ b/components/BuilderClientPage.tsx
@@ -58,6 +58,8 @@ export default function BuilderClientPage() {
   const [manifestThemeColor, setManifestThemeColor] = useState<string>('')
   const [robotsDisallow, setRobotsDisallow] = useState<string>('')
   const [sheetsMode, setSheetsMode] = useState<'auto' | 'include' | 'exclude'>('auto')
+  // Font optimization: allow toggling Google Fonts preconnect links in exported HTML
+  const [fontPreconnect, setFontPreconnect] = useState<boolean>(true)
   const [viewport, setViewport] = useState<'desktop' | 'mobile'>(() => {
     if (typeof window !== 'undefined') {
       try {
@@ -178,7 +180,8 @@ export default function BuilderClientPage() {
         const w = window as unknown as { __exportPreview?: () => { html: string; css: string; js: string } }
         w.__exportPreview = () => {
           try {
-            return exportPage(pageSchema.parse(pageData), { assetManager: am ?? undefined })
+            // Export preview with current optimization options
+            return exportPage(pageSchema.parse(pageData), { assetManager: am ?? undefined, fontPreconnect })
           } catch {
             const fixed: Page = {
               ...pageData,
@@ -188,12 +191,12 @@ export default function BuilderClientPage() {
                 spamProtection: pageData.form?.spamProtection ?? { honeypotFieldName: '_hp', minSubmitSeconds: 2 },
               },
             }
-            return exportPage(pageSchema.parse(fixed), { assetManager: am ?? undefined })
+            return exportPage(pageSchema.parse(fixed), { assetManager: am ?? undefined, fontPreconnect })
           }
         }
       }
     } catch {}
-  }, [pageData, am])
+  }, [pageData, am, fontPreconnect])
 
   const doExport = useCallback(async () => {
     let valid = pageData as Page
@@ -210,7 +213,8 @@ export default function BuilderClientPage() {
       } as Page
       valid = pageSchema.parse(fixed)
     }
-    const exported = exportPage(valid, { assetManager: am ?? undefined })
+    // Respect font optimization toggle when exporting
+    const exported = exportPage(valid, { assetManager: am ?? undefined, fontPreconnect })
     try {
       if (typeof window !== 'undefined') {
         const w = window as unknown as { __captureExport?: boolean; __lastExport?: { html: string; css: string; js: string } }
@@ -247,7 +251,7 @@ export default function BuilderClientPage() {
     }
     const zipBytes = await buildZip({ html: exported.html, css: exported.css, js: exported.js, assets, extras })
     download('landing.zip', zipBytes)
-  }, [pageData, am, manifestName, manifestShortName, manifestStartUrl, manifestDisplay, manifestThemeColor, robotsDisallow, sheetsMode])
+  }, [pageData, am, manifestName, manifestShortName, manifestStartUrl, manifestDisplay, manifestThemeColor, robotsDisallow, sheetsMode, fontPreconnect])
 
   return (
     <div className="p-6 space-y-6">
@@ -312,6 +316,17 @@ export default function BuilderClientPage() {
             </div>
             <div className="border rounded p-3 space-y-2">
               <h2 className="text-sm font-semibold mb-1">Export Options</h2>
+              {/* Font optimization toggle for Google Fonts preconnect */}
+              <label className="flex items-center gap-2" htmlFor="ins-font-preconnect">
+                <input
+                  id="ins-font-preconnect"
+                  type="checkbox"
+                  aria-label="Font Preconnect"
+                  checked={fontPreconnect}
+                  onChange={(e) => setFontPreconnect(e.target.checked)}
+                />
+                <span className="text-sm">Enable font preconnect (Google Fonts)</span>
+              </label>
               <label className="block" htmlFor="ins-manifest-name">
                 <span className="sr-only">Manifest Name</span>
                 <input
diff --git a/lib/exporter/html.ts b/lib/exporter/html.ts
index 3b5655f..14c1932 100644
--- a/lib/exporter/html.ts
+++ b/lib/exporter/html.ts
@@ -2,7 +2,7 @@ import type { Page, FormField } from '@/lib/schema/page'
 import type { AssetManager } from '@/lib/assets/assetManager'
 
 export type Exported = { html: string; css: string; js: string }
-export type ExportOptions = { assetManager?: AssetManager }
+export type ExportOptions = { assetManager?: AssetManager; fontPreconnect?: boolean }
 
 function renderFaq(section: { props: { items: Array<{ q: string; a: string }> } }) {
   const itemsRaw: Array<{ q: string; a: string }> = Array.isArray(section.props.items) ? section.props.items : []
@@ -222,7 +222,7 @@ function renderForm(page: Page) {
   `
 }
 
-function buildHead(page: Page) {
+function buildHead(page: Page, opts?: ExportOptions) {
   const ogImage = page.seo.ogImage
   const analyticsParts: string[] = []
   const ga = page.analytics?.ga4MeasurementId
@@ -250,11 +250,13 @@ function buildHead(page: Page) {
     </script>`)
   }
   const custom = page.analytics?.customHeadHtml || ''
+  const preconnect = opts?.fontPreconnect !== false
   return `
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <link rel="canonical" href="/" />
-    <link rel="preconnect" href="https://fonts.googleapis.com" />
+    ${preconnect ? '<link rel="preconnect" href="https://fonts.googleapis.com" />' : ''}
+    ${preconnect ? '<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />' : ''}
     <link rel="manifest" href="/site.webmanifest" />
     <meta name="theme-color" content="${escapeHtml(page.theme.primaryColor)}" />
     <title>${escapeHtml(page.seo.title)}</title>
@@ -338,9 +340,7 @@ export function exportPage(page: Page, opts?: ExportOptions): Exported {
   const html = `<!DOCTYPE html>
 <html lang="${escapeHtml(page.locale)}">
 <head>
-${buildHead(page)}
-<link rel="preconnect" href="https://fonts.googleapis.com">
-<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+${buildHead(page, opts)}
 </head>
 <body>
   <a href="#main" class="skip-link">Skip to content</a>