diff --git a/src/routers/incidents.py b/src/routers/incidents.py
index 9debb69..921538b 100644
--- a/src/routers/incidents.py
+++ b/src/routers/incidents.py
@@ -507,6 +507,14 @@ async def get_articles_sources_summary(
         d = dict(r)
         langs = (d.pop("languages") or "de").split(",")
         d["languages"] = sorted({(l or "de").strip() for l in langs if l is not None})
+        # Quellentyp aus dem source-Praefix ableiten (fuer den Typ-Filter der Quellenuebersicht)
+        src = d.get("source") or ""
+        if src.startswith("X: "):
+            d["source_type"] = "x"
+        elif src.startswith("Telegram: "):
+            d["source_type"] = "telegram"
+        else:
+            d["source_type"] = "web"
         sources.append(d)
     # Sprach-Verteilung gesamt
     cursor = await db.execute(
diff --git a/src/static/css/style.css b/src/static/css/style.css
index 38862cd..236d9de 100644
--- a/src/static/css/style.css
+++ b/src/static/css/style.css
@@ -1715,6 +1715,39 @@ a.dev-source-pill:hover {
     color: var(--text-primary);
 }
 
+.source-type-filter-chips {
+    display: flex;
+    flex-wrap: wrap;
+    gap: var(--sp-xs);
+    margin: var(--sp-sm) 0 var(--sp-xs);
+}
+
+.source-type-filter-chip {
+    font: inherit;
+    font-size: 11px;
+    padding: 3px 10px;
+    border-radius: var(--radius);
+    border: 1px solid var(--border);
+    background: var(--bg-secondary);
+    color: var(--text-secondary);
+    cursor: pointer;
+}
+
+.source-type-filter-chip:hover {
+    border-color: var(--accent);
+    color: var(--text-primary);
+}
+
+.source-type-filter-chip.active {
+    background: var(--accent);
+    border-color: var(--accent);
+    color: #fff;
+}
+
+.source-type-filter-chip.active strong {
+    color: #fff;
+}
+
 .source-overview-grid {
     display: grid;
     grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
diff --git a/src/static/dashboard.html b/src/static/dashboard.html
index cd5c270..229e9b9 100644
--- a/src/static/dashboard.html
+++ b/src/static/dashboard.html
@@ -13,7 +13,7 @@
     <link rel="stylesheet" href="/static/vendor/leaflet.css">
     <link rel="stylesheet" href="/static/vendor/MarkerCluster.css">
     <link rel="stylesheet" href="/static/vendor/MarkerCluster.Default.css">
-    <link rel="stylesheet" href="/static/css/style.css?v=20260501h">
+    <link rel="stylesheet" href="/static/css/style.css?v=20260522c">
 <style>
 /* Export Modal Radio */
 .export-radio { display:flex; align-items:center; gap:10px; padding:8px 12px; cursor:pointer; border-radius:var(--radius-sm); transition:background 0.15s; border:1px solid transparent; margin-bottom:4px; }
@@ -807,10 +807,10 @@
     <script src="/static/js/i18n.js?v=20260513a"></script>
     <script src="/static/js/api.js?v=20260423a"></script>
     <script src="/static/js/ws.js?v=20260316b"></script>
-    <script src="/static/js/components.js?v=20260522b"></script>
+    <script src="/static/js/components.js?v=20260522c"></script>
     <script src="/static/js/layout.js?v=20260513f"></script>
     <script src="/static/js/pipeline.js?v=20260513d"></script>
-    <script src="/static/js/app.js?v=20260522a"></script>
+    <script src="/static/js/app.js?v=20260522c"></script>
     <script src="/static/js/cluster-data.js?v=20260322f"></script>
     <script src="/static/js/tutorial.js?v=20260316z"></script>
     <script src="/static/js/chat.js?v=20260514e"></script>
diff --git a/src/static/js/app.js b/src/static/js/app.js
index d97b82a..5363f71 100644
--- a/src/static/js/app.js
+++ b/src/static/js/app.js
@@ -909,6 +909,26 @@ const App = {
         }
     },
 
+    /** Quellenuebersicht der Lage nach Quellentyp filtern (Web/Telegram/X). */
+    filterSourceOverview(type, chipEl) {
+        const content = document.getElementById('source-overview-content');
+        if (!content) return;
+        content.querySelectorAll('.source-type-filter-chip').forEach(c => c.classList.remove('active'));
+        if (chipEl) chipEl.classList.add('active');
+        // ein offenes Detail-Panel schliessen
+        const det = content.querySelector('.source-overview-detail');
+        if (det) det.remove();
+        content.querySelectorAll('.source-overview-item.active').forEach(it => {
+            it.classList.remove('active');
+            it.setAttribute('aria-expanded', 'false');
+        });
+        // Quellen-Boxen nach Typ ein-/ausblenden
+        content.querySelectorAll('.source-overview-item').forEach(it => {
+            const t = it.dataset.type || 'web';
+            it.style.display = (!type || t === type) ? '' : 'none';
+        });
+    },
+
     /** Klick auf eine Quellen-Box: Liste der Artikel inline aufklappen (mutual-exclusive). */
     toggleSourceOverviewDetail(el) {
         if (!el) return;
diff --git a/src/static/js/components.js b/src/static/js/components.js
index 6982748..6775cb5 100644
--- a/src/static/js/components.js
+++ b/src/static/js/components.js
@@ -1034,11 +1034,32 @@ const UI = {
         html += `<div class="source-lang-chips">${langChips}</div>`;
         html += `</div>`;
 
+        // Typ-Filter-Chips (nur zeigen, wenn neben Web auch Telegram/X vorkommt)
+        const typeCounts = { web: 0, telegram: 0, x: 0 };
+        data.sources.forEach(s => {
+            const t = s.source_type || 'web';
+            typeCounts[t] = (typeCounts[t] || 0) + 1;
+        });
+        if (typeCounts.telegram > 0 || typeCounts.x > 0) {
+            const typeMeta = [
+                { key: '', label: 'Alle', count: data.sources.length },
+                { key: 'web', label: 'Web', count: typeCounts.web },
+                { key: 'telegram', label: 'Telegram', count: typeCounts.telegram },
+                { key: 'x', label: 'X', count: typeCounts.x },
+            ];
+            const chips = typeMeta
+                .filter(t => t.key === '' || t.count > 0)
+                .map(t => `<button type="button" class="source-type-filter-chip${t.key === '' ? ' active' : ''}" data-type="${t.key}" onclick="App.filterSourceOverview('${t.key}', this)">${t.label} <strong>${t.count}</strong></button>`)
+                .join('');
+            html += `<div class="source-type-filter-chips">${chips}</div>`;
+        }
+
         html += '<div class="source-overview-grid">';
         data.sources.forEach(s => {
             const langs = (s.languages || ['de']).map(l => (l || 'de').toUpperCase()).join('/');
             const sourceName = this.escape(s.source || 'Unbekannt');
-            html += `<div class="source-overview-item" data-source="${sourceName}" tabindex="0" role="button" aria-expanded="false" onclick="App.toggleSourceOverviewDetail(this)" onkeydown="if(event.key==='Enter'||event.key===' '){event.preventDefault();App.toggleSourceOverviewDetail(this);}">
+            const sType = s.source_type || 'web';
+            html += `<div class="source-overview-item" data-source="${sourceName}" data-type="${sType}" tabindex="0" role="button" aria-expanded="false" onclick="App.toggleSourceOverviewDetail(this)" onkeydown="if(event.key==='Enter'||event.key===' '){event.preventDefault();App.toggleSourceOverviewDetail(this);}">
                 <span class="source-overview-name">${sourceName}</span>
                 <span class="source-overview-lang">${langs}</span>
                 <span class="source-overview-count">${s.article_count}</span>