diff --git a/app/Metrics/App/WikiMetrics.php b/app/Metrics/App/WikiMetrics.php
index e0915e93..69e485e6 100644
--- a/app/Metrics/App/WikiMetrics.php
+++ b/app/Metrics/App/WikiMetrics.php
@@ -25,6 +25,15 @@ public function saveMetrics(Wiki $wiki): void {
         $this->wiki = $wiki;
 
         $today = now()->format('Y-m-d');
+        $previousRecord = WikiDailyMetrics::where('wiki_id', $wiki->id)->latest('date')->first();
+
+        // Skip expensive metrics collection if a record for today already exists.
+        if ($previousRecord?->date === $today) {
+            Log::warning("Daily metric already exists for Wiki ID {$wiki->id} on {$today}; skipping metrics collection.");
+
+            return;
+        }
+
         $tripleCount = $this->getNumOfTriples();
         $todayPageCount = $wiki->wikiSiteStats()->first()->pages ?? 0;
         $isDeleted = (bool) $wiki->deleted_at;
@@ -57,8 +66,7 @@ public function saveMetrics(Wiki $wiki): void {
             'total_user_count' => $numberOfUsers,
         ]);
 
-        // compare current record to previous record and only save if there is a change
-        $previousRecord = WikiDailyMetrics::where('wiki_id', $wiki->id)->latest('date')->first();
+        // compare current metrics to previous record and only save if there is a change
         if ($previousRecord?->areMetricsEqual($dailyMetrics)) {
             Log::info("Record unchanged for Wiki ID {$wiki->id}, no new record added.");
 
diff --git a/tests/Metrics/WikiMetricsTest.php b/tests/Metrics/WikiMetricsTest.php
index 6648594f..82796349 100644
--- a/tests/Metrics/WikiMetricsTest.php
+++ b/tests/Metrics/WikiMetricsTest.php
@@ -15,7 +15,11 @@
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Facades\Schema;
+use Log;
+use Psr\Log\LogLevel;
 use Tests\TestCase;
+use TiMacDonald\Log\LogEntry;
+use TiMacDonald\Log\LogFake;
 
 class WikiMetricsTest extends TestCase {
     use RefreshDatabase;
@@ -70,6 +74,55 @@ public function testNoDuplicateRecordsWithOnlyDateChange() {
         ]);
     }
 
+    public function testPreventMetricsCollectionWhenRecordExistsForToday(): void {
+        Log::swap(new LogFake());
+
+        $wiki = Wiki::factory()->create();
+        WikiDb::first()->update(['wiki_id' => $wiki->id]);
+
+        $wiki->wikiSiteStats()->create([
+            'pages' => 10,
+            'users' => 3,
+        ]);
+
+        $wikiMetrics = new WikiMetrics();
+        $wikiMetrics->saveMetrics($wiki);
+
+        $this->assertDatabaseCount('wiki_daily_metrics', 1)
+            ->assertDatabaseHas('wiki_daily_metrics', [
+                'wiki_id' => $wiki->id,
+                'date' => now()->toDateString(),
+                'pages' => 10,
+                'total_user_count' => 3,
+            ]);
+
+        $wiki->wikiSiteStats()->first()->update([
+            'pages' => 12,
+            'users' => 5,
+        ]);
+
+        $wikiMetrics->saveMetrics($wiki);
+
+        $this->assertDatabaseCount('wiki_daily_metrics', 1)
+            ->assertDatabaseHas('wiki_daily_metrics', [
+                'wiki_id' => $wiki->id,
+                'date' => now()->toDateString(),
+                'pages' => 10,
+                'total_user_count' => 3,
+            ]);
+
+        Log::assertLogged(function (LogEntry $log) use ($wiki) {
+            if ($log->level !== LogLevel::WARNING) {
+                return false;
+            }
+
+            return str_contains(
+                $log->message,
+                "Daily metric already exists for Wiki ID {$wiki->id} on " . now()->toDateString()
+            );
+        });
+    }
+
     public function testRecordCreatedWhenWikiFirstDeleted() {
         $wiki = Wiki::factory()->create([
             'domain' => 'thisfake.wikibase.cloud',