feat(sources): externer Reputations-Layer (IFCN + EUvsDisinfo)

Externe Datenquellen (kostenlos, Open Data) ergaenzen die LLM-geschaetzte
Reliability-Achse mit objektiven Signalen:

- IFCN-Signatories (raw.githubusercontent.com/IFCN/verified-signatories):
  Plain-Text-Liste anerkannter Faktencheck-Organisationen.
- EUvsDisinfo (Zenodo CSV): Pro-Kreml-Desinformations-Datenbank.

Schema-Erweiterung:
- ifcn_signatory, eu_disinfo_listed, eu_disinfo_case_count,
  eu_disinfo_last_seen, external_data_synced_at.

Service src/services/external_reputation.py:
- sync_ifcn_signatories(), sync_eu_disinfo(), apply_reputation_overrides(),
  sync_all() mit Domain-Normalisierung (lowercase, ohne www., ohne Schema).

Reliability-Override-Regeln (laufen nach Approve und manuellem Sync):
- ifcn_signatory=1 -> reliability=sehr_hoch
- eu_disinfo_case_count >= 5 -> reliability=sehr_niedrig
- eu_disinfo_case_count >= 1 -> Reliability eine Stufe runter (max niedrig)

API: POST /api/sources/external-reputation/sync (Admin, BackgroundTask).
Filter: ?ifcn_signatory=true, ?eu_disinfo_listed=true.

UI:
- Filter-Dropdown "Externe Reputation" im Quellen-Modal.
- Badges: gruenes "IFCN" und rotes "EU-Desinfo (n)".
- Tooltip macht Reliability-Quelle transparent: "(IFCN-Faktenchecker)",
  "(EU-Desinfo, n Faelle)" oder "(LLM-Schaetzung)".
- "Externe Daten syncen"-Button im Review-Toolbar (Admin-only).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/database.py

@@ -176,7 +176,12 @@ CREATE TABLE IF NOT EXISTS sources (
     proposed_alignments_json TEXT,
     proposed_confidence REAL,
     proposed_reasoning TEXT,
-    proposed_at TIMESTAMP
+    proposed_at TIMESTAMP,
+    eu_disinfo_listed INTEGER DEFAULT 0,
+    eu_disinfo_case_count INTEGER DEFAULT 0,
+    eu_disinfo_last_seen TIMESTAMP,
+    ifcn_signatory INTEGER DEFAULT 0,
+    external_data_synced_at TIMESTAMP
 );
 
 CREATE TABLE IF NOT EXISTS source_alignments (
@@ -668,6 +673,20 @@ async def init_db():
         if any(c not in src_columns for c in ("political_orientation", "media_type", "reliability")):
             logger.info("Migration: Klassifikations-Spalten zu sources hinzugefuegt")
 
+        # Migration: externe Reputations-Daten (EUvsDisinfo + IFCN)
+        for col, ddl in [
+            ("eu_disinfo_listed", "ALTER TABLE sources ADD COLUMN eu_disinfo_listed INTEGER DEFAULT 0"),
+            ("eu_disinfo_case_count", "ALTER TABLE sources ADD COLUMN eu_disinfo_case_count INTEGER DEFAULT 0"),
+            ("eu_disinfo_last_seen", "ALTER TABLE sources ADD COLUMN eu_disinfo_last_seen TIMESTAMP"),
+            ("ifcn_signatory", "ALTER TABLE sources ADD COLUMN ifcn_signatory INTEGER DEFAULT 0"),
+            ("external_data_synced_at", "ALTER TABLE sources ADD COLUMN external_data_synced_at TIMESTAMP"),
+        ]:
+            if col not in src_columns:
+                await db.execute(ddl)
+                await db.commit()
+        if any(c not in src_columns for c in ("eu_disinfo_listed", "ifcn_signatory")):
+            logger.info("Migration: externe Reputations-Spalten zu sources hinzugefuegt")
+
         # Migration: source_alignments-Tabelle (Mehrfach-Tags fuer geopolitische Naehe)
         cursor = await db.execute(
             "SELECT name FROM sqlite_master WHERE type='table' AND name='source_alignments'"

src/models.py

@@ -210,6 +210,11 @@ class SourceResponse(BaseModel):
     classified_at: Optional[str] = None
     alignments: list[str] = []
     is_global: bool = False
+    ifcn_signatory: bool = False
+    eu_disinfo_listed: bool = False
+    eu_disinfo_case_count: int = 0
+    eu_disinfo_last_seen: Optional[str] = None
+    external_data_synced_at: Optional[str] = None
 
 
 # Source Discovery

src/routers/sources.py

@@ -6,6 +6,7 @@ from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException, status
 from models import SourceCreate, SourceUpdate, SourceResponse, DiscoverRequest, DiscoverResponse, DiscoverMultiResponse, DomainActionRequest
 from auth import get_current_user
 from database import db_dependency, get_db, refresh_source_counts
+from services.external_reputation import apply_reputation_overrides, sync_all as sync_external_reputation
 from services.source_classifier import bulk_classify, classify_source
 from source_rules import discover_source, discover_all_feeds, evaluate_feeds_with_claude, _extract_domain, _detect_category, domain_to_display_name, _DOMAIN_ALIASES
 import aiosqlite
@@ -90,6 +91,8 @@ async def list_sources(
     reliability: str = None,
     state_affiliated: bool = None,
     alignment: str = None,
+    ifcn_signatory: bool = None,
+    eu_disinfo_listed: bool = None,
     current_user: dict = Depends(get_current_user),
     db: aiosqlite.Connection = Depends(db_dependency),
 ):
@@ -124,6 +127,12 @@ async def list_sources(
     if alignment:
         query += " AND EXISTS (SELECT 1 FROM source_alignments sa WHERE sa.source_id = s.id AND sa.alignment = ?)"
         params.append(alignment.lower())
+    if ifcn_signatory is not None:
+        query += " AND s.ifcn_signatory = ?"
+        params.append(1 if ifcn_signatory else 0)
+    if eu_disinfo_listed is not None:
+        query += " AND s.eu_disinfo_listed = ?"
+        params.append(1 if eu_disinfo_listed else 0)
 
     query += " ORDER BY s.source_type, s.category, s.name"
     cursor = await db.execute(query, params)
@@ -133,6 +142,8 @@ async def list_sources(
     for d in results:
         d["is_global"] = d.get("tenant_id") is None
         d["state_affiliated"] = bool(d.get("state_affiliated"))
+        d["ifcn_signatory"] = bool(d.get("ifcn_signatory"))
+        d["eu_disinfo_listed"] = bool(d.get("eu_disinfo_listed"))
         d["alignments"] = alignments_map.get(d["id"], [])
     return results
 
@@ -864,6 +875,11 @@ async def approve_classification(
     await _replace_alignments(db, source_id, [a for a in proposed_aligns if a in ALLOWED_ALIGNMENTS])
     await _clear_proposed(db, source_id)
     await db.commit()
+    # Reliability-Override anwenden (IFCN/EUvsDisinfo)
+    try:
+        await apply_reputation_overrides(db, source_id)
+    except Exception as e:
+        logger.warning("Reputation-Override fuer source_id=%s fehlgeschlagen: %s", source_id, e)
     return {"source_id": source_id, "status": "approved"}
 
 
@@ -939,6 +955,26 @@ async def trigger_bulk_classify(
     return {"status": "started", "limit": limit, "only_unclassified": only_unclassified}
 
 
+@router.post("/external-reputation/sync")
+async def trigger_external_reputation_sync(
+    background_tasks: BackgroundTasks,
+    current_user: dict = Depends(get_current_user),
+):
+    """Startet Sync von IFCN- und EUvsDisinfo-Daten (Admin, Hintergrund)."""
+    if current_user.get("role") != "org_admin":
+        raise HTTPException(status_code=403, detail="Nur Admins koennen den externen Sync starten")
+
+    async def _bg():
+        db = await get_db()
+        try:
+            await sync_external_reputation(db)
+        finally:
+            await db.close()
+
+    background_tasks.add_task(_bg)
+    return {"status": "started"}
+
+
 @router.post("/classification/bulk-approve")
 async def bulk_approve_classifications(
     min_confidence: float = 0.85,
@@ -995,4 +1031,10 @@ async def bulk_approve_classifications(
         await _clear_proposed(db, src["id"])
         approved_ids.append(src["id"])
     await db.commit()
+    # Reliability-Override fuer alle gerade Approved
+    try:
+        for sid in approved_ids:
+            await apply_reputation_overrides(db, sid)
+    except Exception as e:
+        logger.warning("Bulk Reputation-Override fehlgeschlagen: %s", e)
     return {"approved_count": len(approved_ids), "min_confidence": min_confidence}

src/services/external_reputation.py

@@ -0,0 +1,268 @@
+"""Externe Reputations-Daten fuer Quellen.
+
+Synchronisiert Domain-Listen von oeffentlichen Reputations-/Faktencheck-Datenbanken
+und schreibt die Treffer in die sources-Spalten:
+
+- IFCN-Signatories (anerkannte Faktenchecker) -> ifcn_signatory
+- EUvsDisinfo (pro-Kreml-Desinformation, Zenodo-CSV) -> eu_disinfo_listed,
+  eu_disinfo_case_count, eu_disinfo_last_seen
+
+Anschliessend wendet apply_reputation_overrides() Override-Regeln auf die
+reliability-Spalte an:
+- ifcn_signatory=1 -> reliability='sehr_hoch'
+- eu_disinfo_case_count >= 5 -> reliability='sehr_niedrig'
+- eu_disinfo_case_count >= 1 -> reliability eine Stufe runter (max bis 'niedrig')
+"""
+import csv
+import io
+import logging
+from collections import defaultdict
+from urllib.parse import urlparse
+
+import aiosqlite
+import httpx
+
+logger = logging.getLogger("osint.external_reputation")
+
+IFCN_LIST_URL = "https://raw.githubusercontent.com/IFCN/verified-signatories/main/list"
+EU_DISINFO_CSV_URL = "https://zenodo.org/records/10514307/files/euvsdisinfo_base.csv?download=1"
+
+HTTP_TIMEOUT = httpx.Timeout(60.0, connect=10.0)
+
+# Reliability-Skala in Stufenfolge (schlecht -> gut)
+RELIABILITY_ORDER = ["sehr_niedrig", "niedrig", "gemischt", "hoch", "sehr_hoch"]
+
+
+def _normalize_domain(raw: str | None) -> str | None:
+    """Normalisiert eine Domain: lowercase, ohne www., ohne Schema/Pfad."""
+    if not raw:
+        return None
+    raw = raw.strip().lower()
+    if not raw:
+        return None
+    # Falls eine vollstaendige URL uebergeben wurde
+    if "://" in raw:
+        try:
+            raw = urlparse(raw).netloc or raw
+        except ValueError:
+            pass
+    # Pfad/Query strippen
+    raw = raw.split("/")[0].split("?")[0].split("#")[0]
+    if raw.startswith("www."):
+        raw = raw[4:]
+    return raw or None
+
+
+async def _fetch_text(url: str) -> str:
+    """Laedt Text von einer URL. Wirft HTTPException bei Fehler."""
+    async with httpx.AsyncClient(timeout=HTTP_TIMEOUT, follow_redirects=True) as client:
+        resp = await client.get(url)
+        resp.raise_for_status()
+        return resp.text
+
+
+async def sync_ifcn_signatories(db: aiosqlite.Connection) -> dict:
+    """Laedt IFCN-Domain-Liste und matcht gegen sources.domain.
+
+    Setzt ifcn_signatory=1 wo die Domain in der Liste vorkommt, sonst 0.
+    """
+    text = await _fetch_text(IFCN_LIST_URL)
+    domains: set[str] = set()
+    for line in text.splitlines():
+        d = _normalize_domain(line)
+        if d:
+            domains.add(d)
+    logger.info("IFCN-Liste geladen: %d Domains", len(domains))
+
+    # Aktuelle Quellen mit Domain laden
+    cursor = await db.execute(
+        "SELECT id, domain FROM sources WHERE domain IS NOT NULL AND domain != ''"
+    )
+    sources = [dict(r) for r in await cursor.fetchall()]
+
+    matched_ids: list[int] = []
+    unmatched_ids: list[int] = []
+    for s in sources:
+        nd = _normalize_domain(s["domain"])
+        if nd and nd in domains:
+            matched_ids.append(s["id"])
+        else:
+            unmatched_ids.append(s["id"])
+
+    # Bulk-Update in zwei Statements
+    if matched_ids:
+        placeholders = ",".join("?" for _ in matched_ids)
+        await db.execute(
+            f"UPDATE sources SET ifcn_signatory = 1 WHERE id IN ({placeholders})",
+            matched_ids,
+        )
+    if unmatched_ids:
+        placeholders = ",".join("?" for _ in unmatched_ids)
+        await db.execute(
+            f"UPDATE sources SET ifcn_signatory = 0 WHERE id IN ({placeholders})",
+            unmatched_ids,
+        )
+    await db.commit()
+    logger.info("IFCN-Sync: %d Quellen als Faktenchecker markiert (von %d)",
+                len(matched_ids), len(sources))
+    return {
+        "list_size": len(domains),
+        "sources_checked": len(sources),
+        "matched": len(matched_ids),
+    }
+
+
+async def sync_eu_disinfo(db: aiosqlite.Connection) -> dict:
+    """Laedt EUvsDisinfo-CSV von Zenodo, aggregiert pro Domain, schreibt sources.
+
+    - eu_disinfo_listed: 1 wenn Domain mindestens 1x als 'disinformation' debunkt
+    - eu_disinfo_case_count: Anzahl Disinformation-Faelle
+    - eu_disinfo_last_seen: spaetestes debunk_date
+    """
+    text = await _fetch_text(EU_DISINFO_CSV_URL)
+    reader = csv.DictReader(io.StringIO(text))
+
+    # Per-Domain aggregieren (nur class='disinformation')
+    counts: dict[str, int] = defaultdict(int)
+    last_seen: dict[str, str] = {}
+    total_rows = 0
+    for row in reader:
+        total_rows += 1
+        if (row.get("class") or "").strip().lower() != "disinformation":
+            continue
+        d = _normalize_domain(row.get("article_domain"))
+        if not d:
+            continue
+        counts[d] += 1
+        debunk_date = (row.get("debunk_date") or "").strip()
+        if debunk_date:
+            prev = last_seen.get(d)
+            if not prev or debunk_date > prev:
+                last_seen[d] = debunk_date
+    logger.info("EUvsDisinfo-CSV: %d Zeilen, %d Domains mit Desinformation",
+                total_rows, len(counts))
+
+    # Quellen laden + matchen
+    cursor = await db.execute(
+        "SELECT id, domain FROM sources WHERE domain IS NOT NULL AND domain != ''"
+    )
+    sources = [dict(r) for r in await cursor.fetchall()]
+
+    matched = 0
+    for s in sources:
+        nd = _normalize_domain(s["domain"])
+        if nd and nd in counts:
+            await db.execute(
+                """UPDATE sources SET
+                    eu_disinfo_listed = 1,
+                    eu_disinfo_case_count = ?,
+                    eu_disinfo_last_seen = ?
+                WHERE id = ?""",
+                (counts[nd], last_seen.get(nd), s["id"]),
+            )
+            matched += 1
+        else:
+            await db.execute(
+                """UPDATE sources SET
+                    eu_disinfo_listed = 0,
+                    eu_disinfo_case_count = 0,
+                    eu_disinfo_last_seen = NULL
+                WHERE id = ?""",
+                (s["id"],),
+            )
+    await db.commit()
+    logger.info("EUvsDisinfo-Sync: %d Quellen als Desinformations-Quelle markiert (von %d)",
+                matched, len(sources))
+    return {
+        "rows_in_csv": total_rows,
+        "domains_with_disinfo_in_csv": len(counts),
+        "sources_checked": len(sources),
+        "matched": matched,
+    }
+
+
+def _override_reliability(current: str | None, ifcn: bool, eu_count: int) -> str | None:
+    """Wendet Override-Regeln auf eine reliability-Stufe an.
+
+    Rueckgabe: neue Stufe (oder None, wenn unveraendert).
+    """
+    cur = current or "na"
+
+    # IFCN gewinnt: zertifizierter Faktenchecker -> sehr_hoch (immer)
+    if ifcn:
+        return "sehr_hoch" if cur != "sehr_hoch" else None
+
+    # EUvsDisinfo: Downgrade
+    if eu_count >= 5:
+        return "sehr_niedrig" if cur != "sehr_niedrig" else None
+    if eu_count >= 1:
+        # Eine Stufe runter, mindestens bis 'niedrig'
+        if cur == "na":
+            return "niedrig"
+        if cur in RELIABILITY_ORDER:
+            idx = RELIABILITY_ORDER.index(cur)
+            new_idx = max(0, idx - 1)
+            new = RELIABILITY_ORDER[new_idx]
+            # Mindeststufe 'niedrig' bei eu_count >= 1
+            if RELIABILITY_ORDER.index(new) > RELIABILITY_ORDER.index("niedrig"):
+                new = "niedrig"
+            return new if new != cur else None
+    return None
+
+
+async def apply_reputation_overrides(db: aiosqlite.Connection, source_id: int | None = None) -> dict:
+    """Wendet Reliability-Override-Regeln an.
+
+    Wenn source_id angegeben ist, nur fuer diese Quelle. Sonst fuer alle Quellen.
+    """
+    if source_id is not None:
+        cursor = await db.execute(
+            "SELECT id, reliability, ifcn_signatory, eu_disinfo_case_count "
+            "FROM sources WHERE id = ?",
+            (source_id,),
+        )
+    else:
+        cursor = await db.execute(
+            "SELECT id, reliability, ifcn_signatory, eu_disinfo_case_count FROM sources"
+        )
+    sources = [dict(r) for r in await cursor.fetchall()]
+
+    changed = 0
+    for s in sources:
+        new = _override_reliability(
+            s.get("reliability"),
+            bool(s.get("ifcn_signatory")),
+            int(s.get("eu_disinfo_case_count") or 0),
+        )
+        if new is not None:
+            await db.execute(
+                "UPDATE sources SET reliability = ? WHERE id = ?",
+                (new, s["id"]),
+            )
+            changed += 1
+    await db.commit()
+    logger.info("Reliability-Override: %d Quellen angepasst (von %d gepruefte)",
+                changed, len(sources))
+    return {"checked": len(sources), "changed": changed}
+
+
+async def sync_all(db: aiosqlite.Connection) -> dict:
+    """Vollstaendiger Sync: IFCN + EUvsDisinfo + Reliability-Override.
+
+    Setzt external_data_synced_at fuer alle Quellen.
+    """
+    ifcn_result = await sync_ifcn_signatories(db)
+    eu_result = await sync_eu_disinfo(db)
+    override_result = await apply_reputation_overrides(db)
+
+    await db.execute(
+        "UPDATE sources SET external_data_synced_at = CURRENT_TIMESTAMP "
+        "WHERE domain IS NOT NULL AND domain != ''"
+    )
+    await db.commit()
+
+    return {
+        "ifcn": ifcn_result,
+        "eu_disinfo": eu_result,
+        "override": override_result,
+    }

src/static/css/style.css

@@ -3759,6 +3759,32 @@ a.dev-source-pill:hover {
     line-height: 1;
 }
 
+.source-ifcn-badge {
+    display: inline-flex;
+    align-items: center;
+    padding: 1px 6px;
+    border-radius: var(--radius);
+    background: #e8f5e9;
+    color: #1b5e20;
+    border: 1px solid #66bb6a;
+    font-size: 10px;
+    font-weight: 600;
+    letter-spacing: 0.3px;
+}
+
+.source-eu-disinfo-badge {
+    display: inline-flex;
+    align-items: center;
+    padding: 1px 6px;
+    border-radius: var(--radius);
+    background: #ffebee;
+    color: #b71c1c;
+    border: 1px solid #c62828;
+    font-size: 10px;
+    font-weight: 600;
+    letter-spacing: 0.3px;
+}
+
 .source-alignment-chip-badge {
     display: inline-flex;
     align-items: center;

src/static/dashboard.html

@@ -538,6 +538,12 @@
                             <option value="sehr_niedrig">Sehr niedrig</option>
                             <option value="na">Nicht eingeordnet</option>
                         </select>
+                        <label for="sources-filter-extern" class="sr-only">Externe Reputation filtern</label>
+                        <select id="sources-filter-extern" class="timeline-filter-select" onchange="App.filterSources()">
+                            <option value="">Externe Reputation: alle</option>
+                            <option value="ifcn">IFCN-Faktenchecker</option>
+                            <option value="eu_disinfo">EU-Desinfo gelistet</option>
+                        </select>
                         <label for="sources-filter-alignment" class="sr-only">Geopolitische Nähe filtern</label>
                         <select id="sources-filter-alignment" class="timeline-filter-select" onchange="App.filterSources()">
                             <option value="">Alle Nähen</option>
@@ -736,6 +742,7 @@
                             </label>
                         </div>
                         <div class="review-toolbar-actions">
+                            <button class="btn btn-small btn-secondary" onclick="App.triggerExternalReputationSync()" title="IFCN-Faktenchecker-Liste und EUvsDisinfo-Daten synchronisieren">Externe Daten syncen</button>
                             <button class="btn btn-small btn-secondary" onclick="App.triggerBulkClassify()" title="LLM-Klassifikation fuer noch unklassifizierte Quellen starten">+ Klassifikation starten</button>
                             <button class="btn btn-small btn-primary" onclick="App.bulkApproveHighConfidence()" title="Alle Vorschlaege ueber dem Konfidenz-Schwellwert genehmigen">Alle &ge; 0.85 genehmigen</button>
                         </div>

src/static/js/api.js

@@ -234,6 +234,9 @@ const API = {
         const qs = new URLSearchParams({ min_confidence: String(minConfidence) }).toString();
         return this._request('POST', `/sources/classification/bulk-approve?${qs}`);
     },
+    triggerExternalReputationSync() {
+        return this._request('POST', '/sources/external-reputation/sync');
+    },
 
     createSource(data) {
         return this._request('POST', '/sources', data);

src/static/js/app.js

@@ -2834,6 +2834,16 @@ async handleRefresh() {
         }
     },
 
+    async triggerExternalReputationSync() {
+        if (!confirm('IFCN- und EUvsDisinfo-Datenbanken jetzt syncen? Lauft im Hintergrund (~30 Sek).')) return;
+        try {
+            await API.triggerExternalReputationSync();
+            UI.showToast('Externer Sync gestartet. Quellenliste in 30 Sek neu laden.', 'info');
+        } catch (err) {
+            UI.showToast('Sync fehlgeschlagen: ' + err.message, 'error');
+        }
+    },
+
     renderSourceStats(stats) {
         const bar = document.getElementById('sources-stats-bar');
         if (!bar) return;
@@ -2866,6 +2876,7 @@ async handleRefresh() {
         const mediaTypeFilter = document.getElementById('sources-filter-mediatype')?.value || '';
         const reliabilityFilter = document.getElementById('sources-filter-reliability')?.value || '';
         const alignmentFilter = document.getElementById('sources-filter-alignment')?.value || '';
+        const externFilter = document.getElementById('sources-filter-extern')?.value || '';
         const search = (document.getElementById('sources-search')?.value || '').toLowerCase();
 
         // Alle Quellen nach Domain gruppieren
@@ -2929,6 +2940,11 @@ async handleRefresh() {
             if (alignmentFilter) {
                 if (!feeds.some(f => Array.isArray(f.alignments) && f.alignments.includes(alignmentFilter))) continue;
             }
+            if (externFilter === 'ifcn') {
+                if (!feeds.some(f => f.ifcn_signatory)) continue;
+            } else if (externFilter === 'eu_disinfo') {
+                if (!feeds.some(f => f.eu_disinfo_listed)) continue;
+            }
 
             // Suche
             if (search) {

src/static/js/components.js

@@ -1193,7 +1193,20 @@ const UI = {
         }
         const rel = feed.reliability;
         if (rel && rel !== 'na') {
-            parts.push(`<span class="source-reliability-dot rel-${this.escape(rel)}" title="Glaubwürdigkeit: ${this.escape(this._reliabilityLabels[rel] || rel)}" aria-label="Glaubwürdigkeit: ${this.escape(this._reliabilityLabels[rel] || rel)}"></span>`);
+            const relLabel = this._reliabilityLabels[rel] || rel;
+            const relSource = feed.ifcn_signatory ? '(IFCN-Faktenchecker)'
+                : (feed.eu_disinfo_listed ? `(EU-Desinfo, ${feed.eu_disinfo_case_count || 0} Fälle)`
+                : '(LLM-Schätzung)');
+            const relTitle = `Glaubwürdigkeit: ${relLabel} ${relSource}`;
+            parts.push(`<span class="source-reliability-dot rel-${this.escape(rel)}" title="${this.escape(relTitle)}" aria-label="${this.escape(relTitle)}"></span>`);
+        }
+        if (feed.ifcn_signatory) {
+            parts.push(`<span class="source-ifcn-badge" title="IFCN-zertifizierter Faktenchecker" aria-label="IFCN-Faktenchecker">✓ IFCN</span>`);
+        }
+        if (feed.eu_disinfo_listed) {
+            const cnt = feed.eu_disinfo_case_count || 0;
+            const title = `EUvsDisinfo: ${cnt} dokumentierte Desinformations-Fälle`;
+            parts.push(`<span class="source-eu-disinfo-badge" title="${this.escape(title)}" aria-label="${this.escape(title)}">⚠ EU-Desinfo (${cnt})</span>`);
         }
         if (feed.state_affiliated) {
             parts.push(`<span class="source-state-badge" title="Staatsnah/-kontrolliert" aria-label="Staatsnah">⚑</span>`);
@@ -1285,7 +1298,15 @@ const UI = {
                 lines.push('Politisch: ' + (pl ? pl.full : firstFeed.political_orientation));
             }
             if (firstFeed.reliability && firstFeed.reliability !== 'na') {
-                lines.push('Glaubwürdigkeit: ' + (this._reliabilityLabels[firstFeed.reliability] || firstFeed.reliability));
+                const relLabel = this._reliabilityLabels[firstFeed.reliability] || firstFeed.reliability;
+                const relSrc = firstFeed.ifcn_signatory ? ' (IFCN-Faktenchecker)'
+                    : (firstFeed.eu_disinfo_listed ? ` (EU-Desinfo, ${firstFeed.eu_disinfo_case_count || 0} Fälle)`
+                    : ' (LLM-Schätzung)');
+                lines.push('Glaubwürdigkeit: ' + relLabel + relSrc);
+            }
+            if (firstFeed.ifcn_signatory) lines.push('IFCN-Faktenchecker: ja');
+            if (firstFeed.eu_disinfo_listed) {
+                lines.push(`EUvsDisinfo: ${firstFeed.eu_disinfo_case_count || 0} Fälle` + (firstFeed.eu_disinfo_last_seen ? ` (zuletzt ${firstFeed.eu_disinfo_last_seen})` : ''));
             }
             if (firstFeed.state_affiliated) lines.push('Staatsnah: ja');
             if (Array.isArray(firstFeed.alignments) && firstFeed.alignments.length > 0) {