diff --git a/src/models.py b/src/models.py
index c31ccb4..0333321 100644
--- a/src/models.py
+++ b/src/models.py
@@ -127,6 +127,8 @@ class SourceResponse(BaseModel):
     article_count: int = 0
     last_seen_at: Optional[str] = None
     created_at: str
+    language: Optional[str] = None
+    bias: Optional[str] = None
     is_global: bool = False
 
 
diff --git a/src/static/js/components.js b/src/static/js/components.js
index 6230bdb..cf9acbd 100644
--- a/src/static/js/components.js
+++ b/src/static/js/components.js
@@ -581,11 +581,25 @@ const UI = {
             ? `<span class="source-feed-count">${feedCount} Feed${feedCount !== 1 ? 's' : ''}</span>`
             : '';
 
+        // Info-Button mit Tooltip (Typ, Sprache, Ausrichtung)
+        let infoButtonHtml = '';
+        const firstFeed = feeds[0] || {};
+        const hasInfo = firstFeed.language || firstFeed.bias;
+        if (hasInfo) {
+            const typeMap = { rss_feed: 'RSS-Feed', web_source: 'Web-Quelle', telegram_channel: 'Telegram-Kanal' };
+            const lines = [];
+            lines.push('Typ: ' + (typeMap[firstFeed.source_type] || firstFeed.source_type || 'Unbekannt'));
+            if (firstFeed.language) lines.push('Sprache: ' + firstFeed.language);
+            if (firstFeed.bias) lines.push('Ausrichtung: ' + firstFeed.bias);
+            const tooltipText = this.escape(lines.join('\n'));
+            infoButtonHtml = ` <span class="info-icon tooltip-below" data-tooltip="${tooltipText}">i</span>`;
+        }
+
         return `<div class="source-group">
             <div class="source-group-header" ${toggleAttr}>
                 ${toggleIcon}
                 <div class="source-group-info">
-                    <span class="source-group-name">${this.escape(displayName)}</span>
+                    <span class="source-group-name">${this.escape(displayName)}</span>${infoButtonHtml}
                 </div>
                 <span class="source-category-badge cat-${feeds[0]?.category || 'sonstige'}">${catLabel}</span>
                 ${feedCountBadge}