diff --git a/app/Http/Controllers/Bo/StatsController.php b/app/Http/Controllers/Bo/StatsController.php
index 856fdea..44f21d2 100644
--- a/app/Http/Controllers/Bo/StatsController.php
+++ b/app/Http/Controllers/Bo/StatsController.php
@@ -166,9 +166,9 @@ class StatsController extends Controller
      */
     private function getCallsSum(Model $entity, Carbon $date, PeriodEnum $period): int
     {
-        $urlIds = method_exists($entity, 'urls') && $entity->urls()->exists()
-            ? $entity->urls()->pluck('id')
-            : collect([$entity->getKey()]);
+        $urlKeys = method_exists($entity, 'urls') && $entity->urls()->exists()
+            ? $entity->urls()->pluck('key')
+            : collect([$entity->key]);
 
         return UrlStats::query()
             ->when(
@@ -189,7 +189,7 @@ class StatsController extends Controller
                     $date->copy()->endOfMonth()
                 ])
             )
-            ->whereIn('url_id', $urlIds)
+            ->whereIn('url_key', $urlKeys)
             ->sum('calls');
     }
 
diff --git a/app/Http/Controllers/Bo/UrlController.php b/app/Http/Controllers/Bo/UrlController.php
index 1b997d8..c742a93 100644
--- a/app/Http/Controllers/Bo/UrlController.php
+++ b/app/Http/Controllers/Bo/UrlController.php
@@ -197,9 +197,7 @@ class UrlController extends Controller
         foreach ($url->history as $history) {
             $history->deleteOrFail();
         }
-        foreach ($url->stats as $stats) {
-            $stats->deleteOrFail();
-        }
+
         $url->deleteOrFail();
         return redirect()->route('bo.urls.index')
             ->with(['warning' => 'L\'url pour la clé ' . $url->key . ' a bien été supprimée.']);
diff --git a/app/Jobs/IncrementUrlStat.php b/app/Jobs/IncrementUrlStat.php
index fb5ca78..f14df05 100644
--- a/app/Jobs/IncrementUrlStat.php
+++ b/app/Jobs/IncrementUrlStat.php
@@ -45,7 +45,8 @@ class IncrementUrlStat implements ShouldQueue
             ->whereDate('date', now())
             ->firstOrNew(
                 [
-                    'url_id' => $this->url->id,
+                    'url_key' => $this->url->key,
+                    'url' => $this->url->value,
                 ],
             );
 
diff --git a/app/Models/Url.php b/app/Models/Url.php
index e815411..8a563e5 100644
--- a/app/Models/Url.php
+++ b/app/Models/Url.php
@@ -76,14 +76,4 @@ class Url extends Model
     {
         return $this->hasMany(UrlHistory::class);
     }
-
-    /**
-     * Get the stats for the url.
-     *
-     * @return \Illuminate\Database\Eloquent\Relations\HasMany<\App\Models\UrlStats, $this>
-     */
-    public function stats()
-    {
-        return $this->hasMany(UrlStats::class);
-    }
 }
diff --git a/app/Models/UrlStats.php b/app/Models/UrlStats.php
index f3bcb43..6ad5cc2 100644
--- a/app/Models/UrlStats.php
+++ b/app/Models/UrlStats.php
@@ -17,7 +17,8 @@ class UrlStats extends Model
     protected $fillable = [
         'calls',
         'date',
-        'url_id',
+        'url_key',
+        'url',
     ];
 
     /**
@@ -41,14 +42,4 @@ class UrlStats extends Model
             $model->date  = now();
         });
     }
-
-    /**
-     * Get the url that owns the stats.
-     *
-     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo<\App\Models\Url, $this>
-     */
-    public function url()
-    {
-        return $this->belongsTo(Url::class);
-    }
 }
diff --git a/database/migrations/2026_06_12_110749_add_cascade_on_delete.php b/database/migrations/2026_06_12_110749_add_cascade_on_delete.php
new file mode 100644
index 0000000..7358667
--- /dev/null
+++ b/database/migrations/2026_06_12_110749_add_cascade_on_delete.php
@@ -0,0 +1,38 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        // Urls.
+        Schema::table('urls', function (Blueprint $table) {
+            $table->dropForeign(['brand_id']);
+
+            $table->foreign('brand_id')
+                ->references('id')
+                ->on('brands')
+                ->cascadeOnDelete();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('urls', function (Blueprint $table) {
+            $table->dropForeign(['brand_id']);
+            $table->foreign('brand_id')
+                ->references('id')
+                ->on('brands')
+                ->onDelete('no action');
+        });
+    }
+};
diff --git a/database/migrations/2026_06_12_115131_alter_url_stats_table.php b/database/migrations/2026_06_12_115131_alter_url_stats_table.php
new file mode 100644
index 0000000..6eb2da1
--- /dev/null
+++ b/database/migrations/2026_06_12_115131_alter_url_stats_table.php
@@ -0,0 +1,53 @@
+<?php
+
+use App\Models\UrlStats;
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('url_stats', function (Blueprint $table) {
+            $table->string('url_key', 45)->after('id')->comment('Url key. No foreign key to allow url deletion and keep stats.');
+            $table->string('url')->after('url_key')->comment('Current url.');
+        });
+
+        DB::statement(
+            "UPDATE url_stats
+            INNER JOIN urls ON url_stats.url_id = urls.id
+            SET url_stats.url_key = urls.key,
+                url_stats.url = urls.value"
+        );
+
+        Schema::table('url_stats', function (Blueprint $table) {
+            $table->dropForeign(['url_id']);
+            $table->dropColumn(['url_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('url_stats', function (Blueprint $table) {
+            $table->foreignId('url_id')->default(1)->after('date')->constrained('urls');
+        });
+
+        DB::statement(
+            "UPDATE url_stats
+            INNER JOIN urls ON url_stats.url_key = urls.key
+            SET url_stats.url_id = urls.id"
+        );
+
+        Schema::table('url_stats', function (Blueprint $table) {
+            $table->dropColumn(['url_key', 'url']);
+        });
+    }
+};