diff --git a/app/Jobs/ApplicationDeploymentJob.php b/app/Jobs/ApplicationDeploymentJob.php
index 0603b971ea..0eb4b3cd00 100644
--- a/app/Jobs/ApplicationDeploymentJob.php
+++ b/app/Jobs/ApplicationDeploymentJob.php
@@ -849,12 +849,6 @@ class ApplicationDeploymentJob implements ShouldBeEncrypted, ShouldQueue
                 return $service;
             });
             $composeFile['services'] = $services->toArray();
-            if (empty($composeFile)) {
-                $this->application_deployment_queue->addLogEntry('Failed to parse docker-compose file.');
-                $this->fail('Failed to parse docker-compose file.');
-
-                return;
-            }
 
             // Add build secrets to compose file if enabled and BuildKit is supported
             if ($this->dockerSecretsSupported && ! empty($this->build_secrets)) {
@@ -997,12 +991,19 @@ class ApplicationDeploymentJob implements ShouldBeEncrypted, ShouldQueue
      * A deployment of the application also queues one sync of the file storages with the server, which
      * loads the content of the files that come from the repository. A preview uses its own copies of the
      * files, so its deployment does not sync the storages of the application.
+     * The parser gives no services when it cannot parse the file. The deployment stops then, because
+     * an empty Compose file fails later with the unclear Docker error "no service selected".
      *
      * @return Collection<array-key, mixed>
+     *
+     * @throws DeploymentException When the parsed Compose file has no services
      */
     private function parseComposeFileForDeployment(): Collection
     {
         $composeFile = collect($this->application->parse(pull_request_id: $this->pull_request_id, preview_id: data_get($this->preview, 'id'), commit: $this->commit));
+        if (blank(data_get($composeFile, 'services'))) {
+            throw new DeploymentException("The Docker Compose file has no services, or Coolify could not parse it. Check that {$this->application->docker_compose_location} is valid YAML and has a services section.");
+        }
         if ($this->pull_request_id === 0) {
             ServerFilesFromServerJob::dispatch($this->application);
         }
diff --git a/tests/Feature/ApplicationDeploymentComposeParseTest.php b/tests/Feature/ApplicationDeploymentComposeParseTest.php
new file mode 100644
index 0000000000..d6a7006be5
--- /dev/null
+++ b/tests/Feature/ApplicationDeploymentComposeParseTest.php
@@ -0,0 +1,103 @@
+<?php
+
+use App\Exceptions\DeploymentException;
+use App\Jobs\ApplicationDeploymentJob;
+use App\Jobs\ServerFilesFromServerJob;
+use App\Models\Application;
+use App\Models\ApplicationDeploymentQueue;
+use App\Models\Environment;
+use App\Models\InstanceSettings;
+use App\Models\PrivateKey;
+use App\Models\Project;
+use App\Models\Server;
+use App\Models\StandaloneDocker;
+use App\Models\Team;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Bus;
+use Illuminate\Support\Facades\Process;
+use Illuminate\Support\Facades\Queue;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    Server::flushIdentityMap();
+    InstanceSettings::unguarded(fn () => InstanceSettings::firstOrCreate(['id' => 0]));
+    config(['constants.ssh.mux_enabled' => false]);
+    Bus::fake();
+    Queue::fake();
+    Process::fake(['*' => Process::result(output: '')]);
+
+    $team = Team::factory()->create();
+    $privateKey = PrivateKey::factory()->create(['team_id' => $team->id]);
+    $server = Server::factory()->create([
+        'team_id' => $team->id,
+        'private_key_id' => $privateKey->id,
+    ]);
+    $this->destination = StandaloneDocker::where('server_id', $server->id)->firstOrFail();
+    $project = Project::factory()->create(['team_id' => $team->id]);
+    $this->environment = $project->environments()->first()
+        ?? Environment::factory()->create(['project_id' => $project->id]);
+});
+
+function composeParseDeploymentApplication(string $compose): Application
+{
+    return Application::factory()->create([
+        'build_pack' => 'dockercompose',
+        'docker_compose_raw' => $compose,
+        'environment_id' => test()->environment->id,
+        'destination_id' => test()->destination->id,
+        'destination_type' => test()->destination->getMorphClass(),
+    ])->fresh();
+}
+
+/**
+ * Runs the Compose parse step of a deployment job.
+ *
+ * @return Collection<array-key, mixed>
+ */
+function runComposeParseDeploymentStep(Application $application): Collection
+{
+    $job = (new ReflectionClass(ApplicationDeploymentJob::class))->newInstanceWithoutConstructor();
+    $queue = Mockery::mock(ApplicationDeploymentQueue::class)->makePartial();
+    $queue->shouldReceive('addLogEntry');
+
+    foreach ([
+        'application' => $application,
+        'application_deployment_queue' => $queue,
+        'pull_request_id' => 0,
+        'preview' => null,
+        'commit' => 'HEAD',
+    ] as $property => $value) {
+        (new ReflectionProperty(ApplicationDeploymentJob::class, $property))->setValue($job, $value);
+    }
+
+    return (new ReflectionMethod(ApplicationDeploymentJob::class, 'parseComposeFileForDeployment'))->invoke($job);
+}
+
+it('stops the deployment when the Compose file gives no services, instead of writing an empty Compose file', function (string $compose) {
+    $application = composeParseDeploymentApplication($compose);
+
+    expect(fn () => runComposeParseDeploymentStep($application))
+        ->toThrow(DeploymentException::class, 'The Docker Compose file has no services');
+
+    Queue::assertNotPushed(ServerFilesFromServerJob::class);
+})->with([
+    'more collection aliases than the limit' => fn () => "x-defaults: &defaults\n  image: alpine:latest\nservices:\n"
+        .collect(range(1, Application::MAX_DOCKER_COMPOSE_COLLECTION_ALIASES + 1))
+            ->map(fn (int $index): string => "  service-{$index}:\n    <<: *defaults\n")
+            ->implode(''),
+    'invalid YAML' => "services:\n  web:\n    image: [nginx\n",
+    'an empty services section' => "services: {}\n",
+]);
+
+it('deploys a Compose file that reuses YAML anchors more than 128 times', function () {
+    $compose = "x-defaults: &defaults\n  image: alpine:latest\nservices:\n"
+        .collect(range(1, 160))->map(fn (int $index): string => "  service-{$index}:\n    <<: *defaults\n")->implode('');
+    $application = composeParseDeploymentApplication($compose);
+
+    $composeFile = runComposeParseDeploymentStep($application);
+
+    expect(data_get($composeFile, 'services'))->toHaveCount(160)
+        ->and(data_get($composeFile, 'services.service-160.image'))->toBe('alpine:latest');
+});
diff --git a/tests/Feature/Proxy/TraefikApplicationRouterServiceLabelsTest.php b/tests/Feature/Proxy/TraefikApplicationRouterServiceLabelsTest.php
new file mode 100644
index 0000000000..62014bf66c
--- /dev/null
+++ b/tests/Feature/Proxy/TraefikApplicationRouterServiceLabelsTest.php
@@ -0,0 +1,68 @@
+<?php
+
+use App\Enums\ProxyTypes;
+use App\Models\Application;
+use App\Models\Environment;
+use App\Models\InstanceSettings;
+use App\Models\PrivateKey;
+use App\Models\Project;
+use App\Models\Server;
+use App\Models\StandaloneDocker;
+use App\Models\Team;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Queue;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    Server::flushIdentityMap();
+    Queue::fake();
+    InstanceSettings::forceCreate(['id' => 0]);
+
+    $team = Team::factory()->create();
+    $server = Server::factory()->create([
+        'team_id' => $team->id,
+        'private_key_id' => PrivateKey::factory()->create(['team_id' => $team->id])->id,
+        'proxy' => ['type' => ProxyTypes::TRAEFIK->value],
+    ]);
+    $project = Project::factory()->create(['team_id' => $team->id]);
+    $environment = Environment::factory()->create(['project_id' => $project->id]);
+    $destination = StandaloneDocker::query()->where('server_id', $server->id)->firstOrFail();
+
+    $this->application = Application::factory()->createOne([
+        'environment_id' => $environment->id,
+        'destination_id' => $destination->id,
+        'destination_type' => $destination->getMorphClass(),
+        'fqdn' => 'https://app.example.com,http://plain.example.com',
+        'ports_exposes' => '3000',
+    ]);
+});
+
+/**
+ * Traefik answers 404 for a router whose service is not declared (#10546).
+ *
+ * @param  array<int, string>  $labels
+ * @return array<string, string>
+ */
+function routersWithUndeclaredServices(array $labels): array
+{
+    $declared = collect($labels)
+        ->map(fn (string $label) => preg_match('/^traefik\.http\.services\.([^.]+)\.loadbalancer\.server\.port=\d+$/', $label, $m) ? $m[1] : null)
+        ->filter();
+
+    return collect($labels)
+        ->mapWithKeys(fn (string $label) => preg_match('/^traefik\.http\.routers\.([^.]+)\.service=(.+)$/', $label, $m) ? [$m[1] => $m[2]] : [])
+        ->reject(fn (string $service) => $declared->contains($service))
+        ->all();
+}
+
+test('every generated application router points to a declared service', function (bool $forceHttps) {
+    $this->application->settings->update(['is_force_https_enabled' => $forceHttps]);
+
+    $labels = generateLabelsApplication($this->application->fresh());
+
+    expect($labels)
+        ->toContain('traefik.http.routers.http-0-'.$this->application->uuid.'.service=http-0-'.$this->application->uuid)
+        ->toContain('traefik.http.services.http-0-'.$this->application->uuid.'.loadbalancer.server.port=3000')
+        ->and(routersWithUndeclaredServices($labels))->toBe([]);
+})->with(['force https' => true, 'no force https' => false]);