diff --git a/app/main.py b/app/main.py
index 4a8cf27..b7dd60f 100644
--- a/app/main.py
+++ b/app/main.py
@@ -22,6 +22,8 @@ OMNIROUTE_URL = os.environ.get("OMNIROUTE_URL", "http://192.168.1.101:20128")
 OMNIROUTE_KEY = os.environ.get("OMNIROUTE_API_KEY", "")
 ARENA_CACHE_TEXT = os.environ.get("ARENA_CACHE_TEXT", "/data/arena_text.json")
 ARENA_CACHE_AGENT = os.environ.get("ARENA_CACHE_AGENT", "/data/arena_agent.json")
+# Сколько последних проверок показывать сегментами в колонке Uptime.
+HISTORY_LIMIT = int(os.environ.get("HISTORY_LIMIT", "40"))
 
 
 # ─── DB setup ───────────────────────────────────────────────────────────────
@@ -352,7 +354,7 @@ def model_stats(db: sqlite3.Connection, model_id: str, hours: int = 24) -> dict:
     ).fetchone()
 
     rows = db.execute(
-        "SELECT ok FROM checks WHERE model_id=? AND checked_at > ?",
+        "SELECT ok FROM checks WHERE model_id=? AND checked_at > ? ORDER BY checked_at ASC",
         (model_id, cutoff)
     ).fetchall()
 
@@ -360,12 +362,16 @@ def model_stats(db: sqlite3.Connection, model_id: str, hours: int = 24) -> dict:
     success = sum(1 for r in rows if r["ok"])
     pct = round(100 * success / total) if total else None
 
+    # История последних проверок (старые → новые) для сегментной витрины.
+    history = [bool(r["ok"]) for r in rows][-HISTORY_LIMIT:]
+
     return {
         "last_ok": bool(last["ok"]) if last else None,
         "last_latency_ms": last["latency_ms"] if last else None,
         "last_checked": last["checked_at"] if last else None,
         "uptime_pct": pct,
         "checks_count": total,
+        "history": history,
     }
 
 
@@ -499,8 +505,16 @@ def api_check(model_id: str):
         (model_id, now, int(ok), latency),
     )
     db.commit()
+    stats = model_stats(db, model_id)
     db.close()
-    return {"model_id": model_id, "ok": ok, "latency_ms": latency, "checked_at": now}
+    return {
+        "model_id": model_id,
+        "ok": ok,
+        "latency_ms": latency,
+        "checked_at": now,
+        "history": stats["history"],
+        "uptime_pct": stats["uptime_pct"],
+    }
 
 
 @app.get("/", response_class=HTMLResponse)
diff --git a/app/static/index.html b/app/static/index.html
index 6cb0edb..8ab1bca 100644
--- a/app/static/index.html
+++ b/app/static/index.html
@@ -134,11 +134,17 @@
   .uptime-low  { color: var(--red); }
   .uptime-none { color: var(--border); }
 
-  .uptime-bar-wrap { display: flex; align-items: center; gap: 6px; }
-  .uptime-bar {
-    width: 60px; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden;
+  .uptime-segs {
+    display: flex; align-items: center; gap: 2px; flex-wrap: nowrap;
   }
-  .uptime-bar-fill { height: 100%; border-radius: 3px; transition: width .3s; }
+  .uptime-seg {
+    width: 4px; height: 14px; border-radius: 1px; background: var(--border);
+    flex-shrink: 0;
+  }
+  .uptime-seg.ok  { background: var(--green); }
+  .uptime-seg.fail { background: var(--red); }
+  .uptime-seg.empty { background: transparent; border: 1px dashed var(--border); box-sizing: border-box; }
+  .uptime-segs .uptime { margin-left: 6px; }
 
   .check-btn {
     background: none; border: 1px solid var(--border); border-radius: 4px;
@@ -234,13 +240,28 @@ function statusCell(ok) {
   return `<div class="status-cell"><span class="status-dot ${cls}"></span>${txt}</div>`;
 }
 
-function uptimeCell(pct) {
-  if (pct === null || pct === undefined) return `<span class="uptime uptime-none">—</span>`;
-  const cls = pct >= 90 ? 'uptime-high' : pct >= 70 ? 'uptime-mid' : 'uptime-low';
-  const barColor = pct >= 90 ? 'var(--green)' : pct >= 70 ? 'var(--yellow)' : 'var(--red)';
-  return `<div class="uptime-bar-wrap">
-    <div class="uptime-bar"><div class="uptime-bar-fill" style="width:${pct}%;background:${barColor}"></div></div>
-    <span class="uptime ${cls}">${pct}%</span>
+function uptimeCell(pct, history) {
+  const hist = Array.isArray(history) ? history : [];
+  if (pct === null || pct === undefined) {
+    if (!hist.length) return `<span class="uptime uptime-none">—</span>`;
+  }
+  const cls = pct === null || pct === undefined
+    ? 'uptime-none'
+    : (pct >= 90 ? 'uptime-high' : pct >= 70 ? 'uptime-mid' : 'uptime-low');
+
+  // Сегменты: каждый — одна проверка. Слева старее, справа свежее.
+  const segs = hist.map(ok =>
+    `<span class="uptime-seg ${ok ? 'ok' : 'fail'}" title="${ok ? 'успех' : 'провал'}"></span>`
+  ).join('');
+
+  const label = pct === null || pct === undefined ? '—' : `${pct}%`;
+  const tip = hist.length
+    ? `title="последние ${hist.length} проверок: ${hist.filter(Boolean).length} успех"`
+    : '';
+
+  return `<div class="uptime-segs" ${tip}>
+    ${segs || '<span class="uptime-seg empty"></span>'}
+    <span class="uptime ${cls}">${label}</span>
   </div>`;
 }
 
@@ -258,7 +279,7 @@ function renderRow(m) {
     <td>${scoreCell(m.arena_text_score, m.arena_text_rank)}</td>
     <td>${scoreCell(m.arena_agent_score, m.arena_agent_rank)}</td>
     <td>${statusCell(m.last_ok)}</td>
-    <td>${uptimeCell(m.uptime_pct)}</td>
+    <td>${uptimeCell(m.uptime_pct, m.history)}</td>
     <td><button class="check-btn" onclick="checkOne('${m.id}', this)">▶ Тест</button></td>
   </tr>`;
 }
@@ -373,6 +394,8 @@ async function checkOne(modelId, btn) {
     if (idx >= 0) {
       allData[idx].last_ok = data.ok;
       allData[idx].last_latency_ms = data.latency_ms;
+      if (data.history) allData[idx].history = data.history;
+      if (data.uptime_pct !== undefined) allData[idx].uptime_pct = data.uptime_pct;
     }
     applyFilters();
   } finally {