diff --git a/src/components/StoreWatchPage.js b/src/components/StoreWatchPage.js
index 75d72b3..dd7fdd2 100644
--- a/src/components/StoreWatchPage.js
+++ b/src/components/StoreWatchPage.js
@@ -240,7 +240,7 @@ const StoreWatchPage = ({ authorizedFetch, knownStores = [], userLocation }) =>
         const storeId = String(store.id || store.storeId);
         const existing = prev.find((entry) => entry.storeId === storeId);
         if (checked) {
-          if (existing) {
+          if (store.isOpen || existing) {
             return prev;
           }
           setDirty(true);
@@ -323,9 +323,26 @@ const StoreWatchPage = ({ authorizedFetch, knownStores = [], userLocation }) =>
           </div>
         ),
         cell: ({ row }) => (
-          <div>
-            <p className="font-medium text-gray-900">{row.original.name}</p>
-            <p className="text-xs text-gray-500">#{row.original.id}</p>
+          <div className="flex items-start justify-between gap-3">
+            <div>
+              <p className="font-medium text-gray-900 flex items-center gap-2">
+                {row.original.name}
+              </p>
+              <p className="text-xs text-gray-500">#{row.original.id}</p>
+            </div>
+            <a
+              href={`https://foodsharing.de/store/${row.original.id}`}
+              target="_blank"
+              rel="noopener noreferrer"
+              className="text-gray-400 hover:text-blue-600"
+              title="Store öffnen"
+            >
+              <svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4" viewBox="0 0 20 20" fill="currentColor">
+                <path d="M12.293 2.293a1 1 0 011.414 0L18 6.586V7a1 1 0 01-1 1h-.586l-3.707-3.707a1 1 0 010-1.414z" />
+                <path d="M3 5a2 2 0 012-2h5a1 1 0 010 2H5v10h10v-5a1 1 0 112 0v5a2 2 0 01-2 2H5a2 2 0 01-2-2V5z" />
+                <path d="M11 3a1 1 0 100 2h2v2a1 1 0 102 0V4a1 1 0 00-1-1h-3z" />
+              </svg>
+            </a>
           </div>
         ),
         sortingFn: 'alphanumeric',
@@ -380,7 +397,7 @@ const StoreWatchPage = ({ authorizedFetch, knownStores = [], userLocation }) =>
           const label = value
             ? new Date(value).toLocaleDateString('de-DE', { year: 'numeric', month: '2-digit', day: '2-digit' })
             : '–';
-          return <div className="text-center font-mono text-xs text-gray-600">{label}</div>;
+          return <div className="text-center text-xs text-gray-700 tracking-wide">{label}</div>;
         },
         sortingFn: (rowA, rowB, columnId) => {
           const a = rowA.getValue(columnId);
@@ -541,6 +558,7 @@ const StoreWatchPage = ({ authorizedFetch, knownStores = [], userLocation }) =>
         cell: ({ row }) => {
           const store = row.original;
           const checked = watchedIds.has(String(store.id));
+          const disabled = store.isOpen;
           return (
             <div className="text-center">
               <input
@@ -548,6 +566,10 @@ const StoreWatchPage = ({ authorizedFetch, knownStores = [], userLocation }) =>
                 className="h-5 w-5"
                 checked={checked}
                 onChange={(event) => handleToggleStore(store, event.target.checked)}
+                disabled={disabled}
+                title={
+                  disabled ? 'Store ist bereits offen – Überwachung nicht verfügbar.' : undefined
+                }
               />
             </div>
           );