diff --git a/src/Command/Auth/AuthAcsfLoginCommand.php b/src/Command/Auth/AuthAcsfLoginCommand.php
index 04772ad7b..9f32ab102 100644
--- a/src/Command/Auth/AuthAcsfLoginCommand.php
+++ b/src/Command/Auth/AuthAcsfLoginCommand.php
@@ -29,6 +29,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
     {
         if ($input->getOption('factory-url')) {
             $factoryUrl = $input->getOption('factory-url');
+            self::validateUrl($factoryUrl);
         } elseif ($input->isInteractive() && $this->datastoreCloud->get('acsf_factories')) {
             $factories = $this->datastoreCloud->get('acsf_factories');
             $factoryChoices = $factories;
diff --git a/tests/phpunit/src/Commands/Acsf/AcsfAuthLoginCommandTest.php b/tests/phpunit/src/Commands/Acsf/AcsfAuthLoginCommandTest.php
index 050f6ae81..f34948c90 100644
--- a/tests/phpunit/src/Commands/Acsf/AcsfAuthLoginCommandTest.php
+++ b/tests/phpunit/src/Commands/Acsf/AcsfAuthLoginCommandTest.php
@@ -9,6 +9,7 @@
 use Acquia\Cli\Command\CommandBase;
 use Acquia\Cli\Config\CloudDataConfig;
 use Acquia\Cli\DataStore\CloudDataStore;
+use Symfony\Component\Validator\Exception\ValidatorException;
 
 /**
  * @property \Acquia\Cli\Command\Auth\AuthLoginCommand $command
@@ -117,6 +118,39 @@ public function testAcsfAuthLoginCommand(bool $machineIsAuthenticated, array $in
         $this->assertEquals(self::$acsfCurrentFactoryUrl, $this->cloudCredentials->getBaseUri());
     }
 
+    /**
+     * @return string[][]
+     */
+    public static function providerTestAcsfAuthLoginInvalid(): array
+    {
+        return [
+            [
+                ['--factory-url' => 'example.com', '--key' => 'asdfasdfasdf','--username' => 'asdf'],
+                'This value is not a valid URL.',
+            ],
+            [
+                ['--factory-url' => 'https://example.com', '--key' => 'asdf','--username' => 'asdf'],
+                'This value is too short. It should have 10 characters or more.',
+            ],
+        ];
+    }
+
+    /**
+     * @dataProvider providerTestAcsfAuthLoginInvalid
+     * @throws \Exception
+     */
+    public function testAcsfAuthLoginInvalid(array $args, string $message): void
+    {
+        $this->clientServiceProphecy->isMachineAuthenticated()
+            ->willReturn(false);
+        $this->removeMockCloudConfigFile();
+        $this->createDataStores();
+        $this->command = $this->createCommand();
+        $this->expectException(ValidatorException::class);
+        $this->expectExceptionMessage($message);
+        $this->executeCommand($args);
+    }
+
     protected function assertKeySavedCorrectly(): void
     {
         $credsFile = $this->cloudConfigFilepath;