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/Jobs/UpdateWikiDailyMetricJobTest.php b/tests/Jobs/UpdateWikiDailyMetricJobTest.php
index e3c601c5..3e246467 100644
--- a/tests/Jobs/UpdateWikiDailyMetricJobTest.php
+++ b/tests/Jobs/UpdateWikiDailyMetricJobTest.php
@@ -8,8 +8,11 @@
 use App\WikiDb;
 use Carbon\Carbon;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Log;
 use Illuminate\Support\Facades\Queue;
 use Tests\TestCase;
+use TiMacDonald\Log\LogEntry;
+use TiMacDonald\Log\LogFake;
 
 class UpdateWikiDailyMetricJobTest extends TestCase {
     use RefreshDatabase;
@@ -72,4 +75,46 @@ public function testRunJobForAllWikisIncludingDeletedWikis() {
             'entity_schema_count' => 0,
         ]);
     }
+
+    public function testWikiMetricsCollectionStopsEarlyWhenRecordExistsForToday() {
+        Log::swap(new LogFake());
+
+        $wiki = Wiki::factory()->create([
+            'domain' => 'duplicate.wikibase.cloud',
+        ]);
+
+        dispatch(new ProvisionWikiDbJob());
+
+        $wikiDb = WikiDb::whereDoesntHave('wiki')->first();
+        $wikiDb->update(['wiki_id' => $wiki->id]);
+
+        $wiki->wikiSiteStats()->create([
+            'pages' => 10,
+            'users' => 3,
+        ]);
+
+        UpdateWikiDailyMetricJob::dispatch();
+
+        $wiki->wikiSiteStats()->first()->update([
+            'pages' => 12,
+            'users' => 5,
+        ]);
+
+        UpdateWikiDailyMetricJob::dispatch();
+
+        $this->assertDatabaseCount('wiki_daily_metrics', 1)
+            ->assertDatabaseHas('wiki_daily_metrics', [
+                'wiki_id' => $wiki->id,
+                'date' => Carbon::today()->toDateString(),
+                'pages' => 10,
+            ]);
+
+        Log::assertLogged(function (LogEntry $log) use ($wiki) {
+            if ($log->level !== 'warning') {
+                return false;
+            }
+
+            return str_contains($log->message, "Daily metric already exists for Wiki ID {$wiki->id} on " . Carbon::today()->toDateString());
+        });
+    }
 }