diff --git a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php
index f3ef2a416d869480d9a07da91a9e4bd3d433f805..c313f1cce5d3a299fb7c9dd17c3c3b036c8f967e 100644
--- a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php
+++ b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php
@@ -80,7 +80,7 @@ public function testFrontPageCoolCache() {
     $this->drupalGet('<front>');
     $this->rebuildAll();
     // Now visit a different page to warm non-route-specific caches.
-    $this->drupalGet('/user/login');
+    $this->drupalGet('user/login');
     $this->collectPerformanceData(function () {
       $this->drupalGet('<front>');
     }, 'umamiFrontPageCoolCache');
diff --git a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php
index 2b9287336e6b06550690bb46a1e0ba7edca2c6ff..a378ae0081b5026536fce870e79388deb988221d 100644
--- a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php
+++ b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php
@@ -29,7 +29,7 @@ public function testNodePageColdCache() {
     $this->drupalGet('user/login');
     $this->rebuildAll();
     $this->collectPerformanceData(function () {
-      $this->drupalGet('/node/1');
+      $this->drupalGet('node/1');
     }, 'umamiNodePageColdCache');
     $this->assertSession()->pageTextContains('quiche');
   }
@@ -44,10 +44,17 @@ public function testNodePageHotCache() {
     // the browser cache.
     $this->drupalGet('node/1');
     $this->drupalGet('node/1');
-    $this->collectPerformanceData(function () {
-      $this->drupalGet('/node/1');
+
+    $performance_data = $this->collectPerformanceData(function () {
+      $this->drupalGet('node/1');
     }, 'umamiNodePageHotCache');
     $this->assertSession()->pageTextContains('quiche');
+    $this->assertSame($performance_data->getQueryCount(), 0);
+    $this->assertSame($performance_data->getCacheGetCount(), 1);
+    $this->assertSame($performance_data->getCacheSetCount(), 0);
+    $this->assertSame($performance_data->getCacheDeleteCount(), 0);
+    $this->assertSame(0, $performance_data->getCacheTagChecksumCount());
+    $this->assertSame(1, $performance_data->getCacheTagIsValidCount());
   }
 
   /**
@@ -61,9 +68,9 @@ public function testNodePageCoolCache() {
     $this->drupalGet('node/1');
     $this->rebuildAll();
     // Now visit a non-node page to warm non-route-specific caches.
-    $this->drupalGet('/user/login');
+    $this->drupalGet('user/login');
     $this->collectPerformanceData(function () {
-      $this->drupalGet('/node/1');
+      $this->drupalGet('node/1');
     }, 'umamiNodePageCoolCache');
     $this->assertSession()->pageTextContains('quiche');
   }
@@ -79,9 +86,9 @@ public function testNodePageWarmCache() {
     $this->drupalGet('node/1');
     $this->rebuildAll();
     // Now visit a different node page to warm non-path-specific caches.
-    $this->drupalGet('/node/2');
+    $this->drupalGet('node/2');
     $this->collectPerformanceData(function () {
-      $this->drupalGet('/node/1');
+      $this->drupalGet('node/1');
     }, 'umamiNodePageWarmCache');
     $this->assertSession()->pageTextContains('quiche');
   }