diff --git a/frontend/src/pages/AlertsPage.jsx b/frontend/src/pages/AlertsPage.jsx
index 3124986..70759f2 100644
--- a/frontend/src/pages/AlertsPage.jsx
+++ b/frontend/src/pages/AlertsPage.jsx
@@ -14,6 +14,86 @@ const initialForm = {
   enabled: true,
 };
 
+const STANDARD_ALERT_INFO = [
+  {
+    name: "Target Reachability",
+    check: "Connection to target database can be established.",
+    comparison: "-",
+    warning: "-",
+    alert: "On connection failure",
+  },
+  {
+    name: "Connectivity Latency",
+    check: "Connection handshake duration (ms).",
+    comparison: "gte",
+    warning: "1000 ms",
+    alert: "2500 ms",
+  },
+  {
+    name: "Collector Freshness",
+    check: "Age of newest metric sample.",
+    comparison: "gte",
+    warning: "poll interval x2",
+    alert: "poll interval x4",
+  },
+  {
+    name: "Active Connection Ratio",
+    check: "active_connections / total_connections.",
+    comparison: "gte",
+    warning: "0.70",
+    alert: "0.90",
+  },
+  {
+    name: "Cache Hit Ratio",
+    check: "Buffer cache efficiency.",
+    comparison: "lte",
+    warning: "0.95",
+    alert: "0.90",
+  },
+  {
+    name: "Lock Pressure",
+    check: "Current number of locks.",
+    comparison: "gte",
+    warning: "50",
+    alert: "100",
+  },
+  {
+    name: "Checkpoint Pressure (15m)",
+    check: "Increase of requested checkpoints in last 15m.",
+    comparison: "gte",
+    warning: "5",
+    alert: "15",
+  },
+  {
+    name: "Rollback Ratio",
+    check: "rollback / (commit + rollback) within rolling window.",
+    comparison: "gte",
+    warning: "0.10",
+    alert: "0.25",
+  },
+  {
+    name: "Deadlocks (60m)",
+    check: "Increase in deadlocks in last 60 minutes.",
+    comparison: "gte",
+    warning: "1",
+    alert: "5",
+  },
+  {
+    name: "Slowest Query Mean Time",
+    check: "Highest query mean execution time in latest snapshot.",
+    comparison: "gte",
+    warning: "300 ms",
+    alert: "1000 ms",
+  },
+  {
+    name: "Slowest Query Total Time",
+    check: "Highest query total execution time in latest snapshot.",
+    comparison: "gte",
+    warning: "3000 ms",
+    alert: "10000 ms",
+  },
+];
+
 function formatAlertValue(value) {
   if (value === null || value === undefined) return "-";
   if (Number.isInteger(value)) return String(value);
@@ -343,6 +423,43 @@ export function AlertsPage() {
         </section>
       </div>
 
+      <details className="card collapsible">
+        <summary className="collapse-head">
+          <div>
+            <h3>Standard Alert Reference</h3>
+            <p>What each built-in alert checks and which default thresholds are used.</p>
+          </div>
+          <span className="collapse-chevron" aria-hidden="true">v</span>
+        </summary>
+        <div className="standard-alerts-note">
+          Some rules include traffic guards to reduce noise (for example rollback ratio needs enough transactions).
+        </div>
+        <div className="standard-alerts-table-wrap">
+          <table className="standard-alerts-table">
+            <thead>
+              <tr>
+                <th>Alert</th>
+                <th>Checks</th>
+                <th>Comparison</th>
+                <th>Warning</th>
+                <th>Alert</th>
+              </tr>
+            </thead>
+            <tbody>
+              {STANDARD_ALERT_INFO.map((row) => (
+                <tr key={row.name}>
+                  <td>{row.name}</td>
+                  <td>{row.check}</td>
+                  <td><code>{row.comparison}</code></td>
+                  <td>{row.warning}</td>
+                  <td>{row.alert}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      </details>
+
       {canManageAlerts && (
         <>
           <details className="card collapsible">
diff --git a/frontend/src/styles.css b/frontend/src/styles.css
index 4c414d4..c79d0a0 100644
--- a/frontend/src/styles.css
+++ b/frontend/src/styles.css
@@ -1314,6 +1314,30 @@ td {
   padding: 10px 3px 4px 0;
 }
 
+.standard-alerts-note {
+  margin-bottom: 10px;
+  color: #a7c0df;
+  font-size: 13px;
+}
+
+.standard-alerts-table-wrap {
+  overflow-x: auto;
+}
+
+.standard-alerts-table th,
+.standard-alerts-table td {
+  vertical-align: top;
+  font-size: 13px;
+}
+
+.standard-alerts-table td code {
+  color: #d7e8ff;
+  background: #112846;
+  border: 1px solid #355d91;
+  border-radius: 6px;
+  padding: 1px 6px;
+}
+
 .alert-item {
   border-radius: 12px;
   border: 1px solid #375d8f;