diff --git a/x-pack/plugins/monitoring/public/services/clusters.js b/x-pack/plugins/monitoring/public/services/clusters.js
index 7f772ac1e1bcdc..d0ca1bc6bbde6b 100644
--- a/x-pack/plugins/monitoring/public/services/clusters.js
+++ b/x-pack/plugins/monitoring/public/services/clusters.js
@@ -69,9 +69,11 @@ export function monitoringClustersProvider($injector) {
       if (Legacy.shims.isCloud) {
         return Promise.resolve();
       }
-
+      const globalState = $injector.get('globalState');
       return $http
-        .get('../api/monitoring/v1/elasticsearch_settings/check/internal_monitoring')
+        .post('../api/monitoring/v1/elasticsearch_settings/check/internal_monitoring', {
+          ccs: globalState.ccs,
+        })
         .then(({ data }) => {
           showInternalMonitoringToast({
             legacyIndices: data.legacy_indices,
diff --git a/x-pack/plugins/monitoring/server/lib/ccs_utils.js b/x-pack/plugins/monitoring/server/lib/ccs_utils.js
index 96910dd86a94de..649611742df2ce 100644
--- a/x-pack/plugins/monitoring/server/lib/ccs_utils.js
+++ b/x-pack/plugins/monitoring/server/lib/ccs_utils.js
@@ -5,7 +5,10 @@
  */
 import { isFunction, get } from 'lodash';
 
-export function appendMetricbeatIndex(config, indexPattern) {
+export function appendMetricbeatIndex(config, indexPattern, bypass = false) {
+  if (bypass) {
+    return indexPattern;
+  }
   // Leverage this function to also append the dynamic metricbeat index too
   let mbIndex = null;
   // TODO: NP
@@ -16,8 +19,7 @@ export function appendMetricbeatIndex(config, indexPattern) {
     mbIndex = get(config, 'ui.metricbeat.index');
   }
 
-  const newIndexPattern = `${indexPattern},${mbIndex}`;
-  return newIndexPattern;
+  return `${indexPattern},${mbIndex}`;
 }
 
 /**
@@ -31,7 +33,7 @@ export function appendMetricbeatIndex(config, indexPattern) {
  * @param  {String} ccs The optional cluster-prefix to prepend.
  * @return {String} The index pattern with the {@code cluster} prefix appropriately prepended.
  */
-export function prefixIndexPattern(config, indexPattern, ccs) {
+export function prefixIndexPattern(config, indexPattern, ccs, monitoringIndicesOnly = false) {
   let ccsEnabled = false;
   // TODO: NP
   // This function is called with both NP config and LP config
@@ -42,7 +44,7 @@ export function prefixIndexPattern(config, indexPattern, ccs) {
   }
 
   if (!ccsEnabled || !ccs) {
-    return appendMetricbeatIndex(config, indexPattern);
+    return appendMetricbeatIndex(config, indexPattern, monitoringIndicesOnly);
   }
 
   const patterns = indexPattern.split(',');
@@ -50,10 +52,14 @@ export function prefixIndexPattern(config, indexPattern, ccs) {
 
   // if a wildcard is used, then we also want to search the local indices
   if (ccs === '*') {
-    return appendMetricbeatIndex(config, `${prefixedPattern},${indexPattern}`);
+    return appendMetricbeatIndex(
+      config,
+      `${prefixedPattern},${indexPattern}`,
+      monitoringIndicesOnly
+    );
   }
 
-  return appendMetricbeatIndex(config, prefixedPattern);
+  return appendMetricbeatIndex(config, prefixedPattern, monitoringIndicesOnly);
 }
 
 /**
diff --git a/x-pack/plugins/monitoring/server/routes/api/v1/elasticsearch_settings/check/internal_monitoring.ts b/x-pack/plugins/monitoring/server/routes/api/v1/elasticsearch_settings/check/internal_monitoring.ts
index 4473d824c9e307..ef2bd8209a4692 100644
--- a/x-pack/plugins/monitoring/server/routes/api/v1/elasticsearch_settings/check/internal_monitoring.ts
+++ b/x-pack/plugins/monitoring/server/routes/api/v1/elasticsearch_settings/check/internal_monitoring.ts
@@ -4,15 +4,34 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { schema } from '@kbn/config-schema';
 import { RequestHandlerContext } from 'kibana/server';
+import {
+  INDEX_PATTERN_ELASTICSEARCH,
+  INDEX_PATTERN_KIBANA,
+  INDEX_PATTERN_LOGSTASH,
+} from '../../../../../../common/constants';
 // @ts-ignore
-import { getIndexPatterns } from '../../../../../lib/cluster/get_index_patterns';
+import { prefixIndexPattern } from '../../../../../lib/ccs_utils';
 // @ts-ignore
 import { handleError } from '../../../../../lib/errors';
 import { RouteDependencies } from '../../../../../types';
 
 const queryBody = {
   size: 0,
+  query: {
+    bool: {
+      must: [
+        {
+          range: {
+            timestamp: {
+              gte: 'now-12h',
+            },
+          },
+        },
+      ],
+    },
+  },
   aggs: {
     types: {
       terms: {
@@ -49,20 +68,31 @@ const checkLatestMonitoringIsLegacy = async (context: RequestHandlerContext, ind
   return counts;
 };
 
-export function internalMonitoringCheckRoute(server: unknown, npRoute: RouteDependencies) {
-  npRoute.router.get(
+export function internalMonitoringCheckRoute(
+  server: { config: () => unknown },
+  npRoute: RouteDependencies
+) {
+  npRoute.router.post(
     {
       path: '/api/monitoring/v1/elasticsearch_settings/check/internal_monitoring',
-      validate: false,
+      validate: {
+        body: schema.object({
+          ccs: schema.maybe(schema.string()),
+        }),
+      },
     },
-    async (context, _request, response) => {
+    async (context, request, response) => {
       try {
         const typeCount = {
           legacy_indices: 0,
           mb_indices: 0,
         };
 
-        const { esIndexPattern, kbnIndexPattern, lsIndexPattern } = getIndexPatterns(server);
+        const config = server.config();
+        const { ccs } = request.body;
+        const esIndexPattern = prefixIndexPattern(config, INDEX_PATTERN_ELASTICSEARCH, ccs, true);
+        const kbnIndexPattern = prefixIndexPattern(config, INDEX_PATTERN_KIBANA, ccs, true);
+        const lsIndexPattern = prefixIndexPattern(config, INDEX_PATTERN_LOGSTASH, ccs, true);
         const indexCounts = await Promise.all([
           checkLatestMonitoringIsLegacy(context, esIndexPattern),
           checkLatestMonitoringIsLegacy(context, kbnIndexPattern),