diff --git a/scripts/assets/web-probe-sentinel-monitor-web/monitor-web.js b/scripts/assets/web-probe-sentinel-monitor-web/monitor-web.js
index 92b4a1cc..9b193916 100644
--- a/scripts/assets/web-probe-sentinel-monitor-web/monitor-web.js
+++ b/scripts/assets/web-probe-sentinel-monitor-web/monitor-web.js
@@ -40,16 +40,16 @@ createApp({
     });
     const selectedRun = computed(() => runs.value.find((run) => run.id === selectedRunId.value) || latestRun.value);
     const trendRows = computed(() => runs.value.slice().sort((a, b) => Date.parse(a.updatedAt || a.createdAt || "") - Date.parse(b.updatedAt || b.createdAt || "")).slice(-48));
-    const trendMax = computed(() => Math.max(1, ...trendRows.value.flatMap((run) => [redCount(run), warningCount(run), findingCount(run)])));
+    const trendMax = computed(() => Math.max(1, ...trendRows.value.flatMap((run) => [trendErrorCount(run), trendWarningCount(run), trendTotalCount(run)])));
     const trendPolylines = computed(() => ({
-      red: trendPolyline((run) => redCount(run)),
-      warning: trendPolyline((run) => warningCount(run)),
-      total: trendPolyline((run) => findingCount(run)),
+      red: trendPolyline((run) => trendErrorCount(run)),
+      warning: trendPolyline((run) => trendWarningCount(run)),
+      total: trendPolyline((run) => trendTotalCount(run)),
     }));
     const trendDots = computed(() => trendRows.value.map((run, index) => {
-      const red = redCount(run);
-      const warning = warningCount(run);
-      const total = findingCount(run);
+      const red = trendErrorCount(run);
+      const warning = trendWarningCount(run);
+      const total = trendTotalCount(run);
       const x = trendX(index, trendRows.value.length);
       const redY = trendY(red);
       const warningY = trendY(warning);
@@ -570,6 +570,29 @@ function warningCount(item) {
   return number(counts.warning) + number(counts.warn) + number(counts.amber);
 }
 
+function trendSeverityCounts(item) {
+  const counts = item?.severityCounts;
+  return counts && typeof counts === "object" && !Array.isArray(counts) ? counts : null;
+}
+
+function trendErrorCount(item) {
+  const counts = trendSeverityCounts(item);
+  if (!counts) return 0;
+  return number(counts.red) + number(counts.critical) + number(counts.error);
+}
+
+function trendWarningCount(item) {
+  const counts = trendSeverityCounts(item);
+  if (!counts) return 0;
+  return number(counts.warning) + number(counts.warn) + number(counts.amber);
+}
+
+function trendTotalCount(item) {
+  const counts = trendSeverityCounts(item);
+  if (!counts) return 0;
+  return Object.values(counts).reduce((sum, value) => sum + number(value), 0);
+}
+
 function findingCount(item) {
   const counts = item?.severityCounts;
   if (counts && typeof counts === "object") return Object.values(counts).reduce((sum, value) => sum + number(value), 0);