diff --git a/web/src/routes/markt/[slug]/+page.svelte b/web/src/routes/markt/[slug]/+page.svelte
index 2383a0a..4abe5f0 100644
--- a/web/src/routes/markt/[slug]/+page.svelte
+++ b/web/src/routes/markt/[slug]/+page.svelte
@@ -136,6 +136,8 @@
 			'script>'
 	);
 
+	const marketUrl = $derived(`https://marktvogt.de/markt/${market.slug}`);
+
 	const jsonLdEventHtml = $derived(
 		'<script type="application/ld+json">' +
 			JSON.stringify({
@@ -147,10 +149,16 @@
 				eventAttendanceMode: 'https://schema.org/OfflineEventAttendanceMode',
 				eventStatus: 'https://schema.org/EventScheduled',
 				...(market.description ? { description: market.description.slice(0, 500) } : {}),
-				...(market.image_url ? { image: market.image_url } : {}),
+				image: market.image_url || 'https://marktvogt.de/apple-touch-icon.png',
 				...(market.website ? { url: market.website } : {}),
 				...(market.organizer_name
-					? { organizer: { '@type': 'Organization', name: market.organizer_name } }
+					? {
+							organizer: {
+								'@type': 'Organization',
+								name: market.organizer_name,
+								url: market.website || marketUrl
+							}
+						}
 					: {}),
 				location: {
 					'@type': 'Place',
@@ -176,10 +184,21 @@
 								price: (admission.adult_cents / 100).toFixed(2),
 								priceCurrency: 'EUR',
 								availability: 'https://schema.org/InStock',
-								validFrom: market.start_date
+								validFrom: market.start_date,
+								url: market.website || marketUrl
 							}
 						}
-					: {})
+					: {
+							isAccessibleForFree: true,
+							offers: {
+								'@type': 'Offer',
+								price: '0',
+								priceCurrency: 'EUR',
+								availability: 'https://schema.org/InStock',
+								validFrom: market.start_date,
+								url: market.website || marketUrl
+							}
+						})
 			}) +
 			'</' +
 			'script>'