diff --git a/.env.example b/.env.example
index da42a51..aa21662 100644
--- a/.env.example
+++ b/.env.example
@@ -60,6 +60,13 @@ MONITORINK_CODEX_TOKEN_FILE=/hermes/auth.json
 #MONITORINK_TRACKER_TR4KER_URL=https://tr4ker.net
 #MONITORINK_TRACKER_TR4KER_USER=TonIdentifiant
 #MONITORINK_TRACKER_TR4KER_PASS=TonMotDePasse
+# yggreborn (YggTorrent) : type "yggreborn" (Flask + CSRF). ⚠️ USER = EMAIL (login par email).
+# Ratio seul (lu dans l'en-tête), pas de up/down ni jetons.
+#MONITORINK_TRACKER_YGGREBORN_LABEL=yggreborn
+#MONITORINK_TRACKER_YGGREBORN_TYPE=yggreborn
+#MONITORINK_TRACKER_YGGREBORN_URL=https://www.yggreborn.org
+#MONITORINK_TRACKER_YGGREBORN_USER=ton.email@exemple.com
+#MONITORINK_TRACKER_YGGREBORN_PASS=TonMotDePasse
 #MONITORINK_TRACKER_TTL=1800
 
 # Home Assistant (optionnel) — laisser vide pour désactiver
diff --git a/backend/integrations/trackers.py b/backend/integrations/trackers.py
index 16b01b6..9fe4ecb 100644
--- a/backend/integrations/trackers.py
+++ b/backend/integrations/trackers.py
@@ -29,6 +29,8 @@ from config import TrackerSpec, config
 _UA = ("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 "
        "(KHTML, like Gecko) Chrome/126.0 Safari/537.36")
 _CSRF_META = re.compile(r'name="csrf-token"\s+content="([^"]+)"')
+_CSRF_INPUT = re.compile(r'name="csrf_token"[^>]*value="([^"]+)"')
+_YGG_RATIO = re.compile(r"Ratio\s*:\s*([\d.]+)")
 
 
 @dataclass
@@ -205,7 +207,37 @@ async def _fetch_tr4ker(spec: TrackerSpec) -> TrackerStat:
     )
 
 
-_FETCHERS = {"unit3d_nuxt": _fetch_unit3d, "torr9": _fetch_torr9, "tr4ker": _fetch_tr4ker}
+async def _fetch_yggreborn(spec: TrackerSpec) -> TrackerStat:
+    """yggreborn (YggTorrent) : site rendu serveur (Flask), login form classique avec
+    CSRF. ⚠️ l'`identifier` est l'EMAIL (champ `type=email`), pas le pseudo. Pas de token
+    API ; le ratio est affiché tel quel dans l'en-tête (« Ratio : 7.63 ») -> on le lit
+    directement (pas de up/down exposé simplement ; l'user veut juste le ratio)."""
+    if not (spec.base_url and spec.username and spec.password):
+        return TrackerStat(spec.key, spec.label, ok=False, error="non configuré")
+
+    async with httpx.AsyncClient(
+        timeout=20, follow_redirects=True, headers={"User-Agent": _UA},
+    ) as client:
+        page = await client.get(f"{spec.base_url}/login")
+        m = _CSRF_INPUT.search(page.text)
+        if not m:
+            raise _AuthError("csrf introuvable")
+        resp = await client.post(f"{spec.base_url}/login", data={
+            "csrf_token": m.group(1), "identifier": spec.username, "password": spec.password,
+        })
+        if "incorrect" in resp.text.lower():
+            raise _AuthError("identifiants refusés (identifier = email)")
+        rm = _YGG_RATIO.search(resp.text)
+        if not rm:
+            raise _AuthError("ratio introuvable")
+
+    return TrackerStat(spec.key, spec.label, ok=True, ratio=float(rm.group(1)))
+
+
+_FETCHERS = {
+    "unit3d_nuxt": _fetch_unit3d, "torr9": _fetch_torr9,
+    "tr4ker": _fetch_tr4ker, "yggreborn": _fetch_yggreborn,
+}
 
 
 async def _fetch_one(spec: TrackerSpec) -> TrackerStat:
diff --git a/backend/templates/dashboard.html b/backend/templates/dashboard.html
index 0c8550f..d6a3918 100644
--- a/backend/templates/dashboard.html
+++ b/backend/templates/dashboard.html
@@ -215,7 +215,7 @@
           {% if t.ok %}<span class="ratio num">{{ t.ratio_h }}</span>
           {% else %}<span class="io"><span class="ko">{{ t.error }}</span></span>{% endif %}
         </div>
-        {% if t.ok %}<div class="io num">envoyé {{ t.up_h }} · reçu {{ t.down_h }}</div>
+        {% if t.ok %}{% if t.up_bytes or t.down_bytes %}<div class="io num">envoyé {{ t.up_h }} · reçu {{ t.down_h }}</div>{% endif %}
         {% if t.tokens is not none %}<div class="io num">{{ t.tokens_h }} {{ t.tokens_label }}</div>{% endif %}{% endif %}
       </div>
       {% endfor %}
diff --git a/dev/preview.py b/dev/preview.py
index 51f32c4..42994f9 100644
--- a/dev/preview.py
+++ b/dev/preview.py
@@ -67,10 +67,10 @@ CTX = {
         "vpn_ok": True, "vpn_port": 51820,
     },
     "trackers": [
-        {"ok": True, "label": "c411", "ratio_h": "1,04", "up_h": "378 Go", "down_h": "365 Go", "tokens": None},
-        {"ok": True, "label": "torr9", "ratio_h": "1,62", "up_h": "226 Go", "down_h": "140 Go", "tokens": 2168, "tokens_h": "2 168", "tokens_label": "jetons"},
-        {"ok": True, "label": "tr4ker", "ratio_h": "5233,52", "up_h": "5,62 To", "down_h": "1 Go", "tokens": 223, "tokens_h": "223", "tokens_label": "Crédit"},
-        {"ok": False, "label": "yggreborn", "error": "2FA requise"},
+        {"ok": True, "label": "c411", "ratio_h": "1,04", "up_bytes": 1, "up_h": "378 Go", "down_h": "365 Go", "tokens": None},
+        {"ok": True, "label": "torr9", "ratio_h": "1,62", "up_bytes": 1, "up_h": "226 Go", "down_h": "140 Go", "tokens": 2168, "tokens_h": "2 168", "tokens_label": "jetons"},
+        {"ok": True, "label": "tr4ker", "ratio_h": "5233,52", "up_bytes": 1, "up_h": "5,62 To", "down_h": "1 Go", "tokens": 223, "tokens_h": "223", "tokens_label": "Crédit"},
+        {"ok": True, "label": "yggreborn", "ratio_h": "7,63", "up_bytes": 0, "down_bytes": 0, "tokens": None},
     ],
     "ha_states": [
         {"label": "Salon", "display": "21°"},