diff --git a/README.md b/README.md
index 27dbe91..be0854b 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,10 @@ intensive.
 
 # Configuration
 
+* `$wgCrawlerProtectedActions` - array of actions to protect (default: `[ 'history' ]`).
+  Actions specified in this array will be denied for anonymous users.
+  Set to an empty array `[]` to disable `action=`-based restrictions for anonymous users (other checks
+  such as `type=revision`, `diff`, or `oldid` may still block requests).
 * `$wgCrawlerProtectedSpecialPages` - array of special pages to protect
   (default: `[ 'mobilediff', 'recentchangeslinked', 'whatlinkshere' ]`).
   Supported values are special page names or their aliases regardless of case.
diff --git a/extension.json b/extension.json
index b09e568..a6d6dbf 100644
--- a/extension.json
+++ b/extension.json
@@ -21,6 +21,11 @@
         "SpecialPageBeforeExecute": "main"
     },
     "config": {
+        "CrawlerProtectedActions": {
+            "value": [
+                "history"
+            ]
+        },
         "CrawlerProtectedSpecialPages": {
             "value": [
                 "mobilediff",
diff --git a/includes/Hooks.php b/includes/Hooks.php
index a2d9bba..298f413 100644
--- a/includes/Hooks.php
+++ b/includes/Hooks.php
@@ -43,7 +43,7 @@ class Hooks implements MediaWikiPerformActionHook, SpecialPageBeforeExecuteHook
 	 * Block sensitive page views for anonymous users via MediaWikiPerformAction.
 	 * Handles:
 	 *  - ?type=revision
-	 *  - ?action=history
+	 *  - ?action=<configurable actions>
 	 *  - ?diff=1234
 	 *  - ?oldid=1234
 	 *
@@ -70,11 +70,14 @@ public function onMediaWikiPerformAction(
 		$diffId = (int)$request->getVal( 'diff' );
 		$oldId = (int)$request->getVal( 'oldid' );
 
+		$config = MediaWikiServices::getInstance()->getMainConfig();
+		$protectedActions = $config->get( 'CrawlerProtectedActions' );
+
 		if (
 			!$user->isRegistered()
 			&& (
 				$type === 'revision'
-				|| $action === 'history'
+				|| in_array( $action, $protectedActions, true )
 				|| $diffId > 0
 				|| $oldId > 0
 			)
diff --git a/tests/phpunit/namespaced-stubs.php b/tests/phpunit/namespaced-stubs.php
index 1dfdf57..aee7175 100644
--- a/tests/phpunit/namespaced-stubs.php
+++ b/tests/phpunit/namespaced-stubs.php
@@ -94,6 +94,9 @@ class MediaWikiServices {
 		/** @var bool Control CrawlerProtectionUse418 config for testing */
 		public static $testUse418 = false;
 
+		/** @var array|null Control CrawlerProtectedActions config for testing */
+		public static $testProtectedActions = null;
+
 		/**
 		 * @return MediaWikiServices
 		 */
@@ -130,6 +133,11 @@ public function getMainConfig() {
 				 * @return mixed
 				 */
 				public function get( $name ) {
+					if ( $name === 'CrawlerProtectedActions' ) {
+						return MediaWikiServices::$testProtectedActions !== null
+							? MediaWikiServices::$testProtectedActions
+							: [ 'history' ];
+					}
 					if ( $name === 'CrawlerProtectedSpecialPages' ) {
 						return [
 							'RecentChangesLinked',
diff --git a/tests/phpunit/unit/HooksTest.php b/tests/phpunit/unit/HooksTest.php
index 7345cb4..42401b5 100644
--- a/tests/phpunit/unit/HooksTest.php
+++ b/tests/phpunit/unit/HooksTest.php
@@ -69,10 +69,13 @@ public static function setUpBeforeClass(): void {
 	 */
 	protected function tearDown(): void {
 		parent::tearDown();
-		// Reset the test config flag (only exists in stub environment)
+		// Reset the test config flags (only exists in stub environment)
 		if ( property_exists( '\MediaWiki\MediaWikiServices', 'testUse418' ) ) {
 			\MediaWiki\MediaWikiServices::$testUse418 = false;
 		}
+		if ( property_exists( '\MediaWiki\MediaWikiServices', 'testProtectedActions' ) ) {
+			\MediaWiki\MediaWikiServices::$testProtectedActions = null;
+		}
 		// Only reset if the method exists (in our test stubs)
 		if ( method_exists( '\MediaWiki\MediaWikiServices', 'resetForTesting' ) ) {
 			\MediaWiki\MediaWikiServices::resetForTesting();
@@ -160,6 +163,240 @@ public function testNonRevisionTypeAlwaysAllowed() {
 		$this->assertTrue( $result );
 	}
 
+	/**
+	 * @covers ::onMediaWikiPerformAction
+	 */
+	public function testHistoryActionBlocksAnonymous() {
+		$output = $this->createMock( self::$outputPageClassName );
+
+		$request = $this->createMock( self::$webRequestClassName );
+		$request->method( 'getVal' )->willReturnCallback( static function ( $key, $default = null ) {
+			if ( $key === 'action' ) {
+				return 'history';
+			}
+			return $default;
+		} );
+
+		$user = $this->createMock( self::$userClassName );
+		$user->method( 'isRegistered' )->willReturn( false );
+
+		$article = $this->createMock( self::$articleClassName );
+		$title = $this->createMock( self::$titleClassName );
+		$wiki = $this->createMock( self::$actionEntryPointClassName );
+
+		$runner = $this->getMockBuilder( Hooks::class )
+			->onlyMethods( [ 'denyAccess' ] )
+			->getMock();
+		$runner->expects( $this->once() )->method( 'denyAccess' );
+
+		$result = $runner->onMediaWikiPerformAction( $output, $article, $title, $user, $request, $wiki );
+		$this->assertFalse( $result );
+	}
+
+	/**
+	 * @covers ::onMediaWikiPerformAction
+	 */
+	public function testHistoryActionAllowsLoggedIn() {
+		$output = $this->createMock( self::$outputPageClassName );
+
+		$request = $this->createMock( self::$webRequestClassName );
+		$request->method( 'getVal' )->willReturnCallback( static function ( $key, $default = null ) {
+			if ( $key === 'action' ) {
+				return 'history';
+			}
+			return $default;
+		} );
+
+		$user = $this->createMock( self::$userClassName );
+		$user->method( 'isRegistered' )->willReturn( true );
+
+		$article = $this->createMock( self::$articleClassName );
+		$title = $this->createMock( self::$titleClassName );
+		$wiki = $this->createMock( self::$actionEntryPointClassName );
+
+		$runner = $this->getMockBuilder( Hooks::class )
+			->onlyMethods( [ 'denyAccess' ] )
+			->getMock();
+		$runner->expects( $this->never() )->method( 'denyAccess' );
+
+		$result = $runner->onMediaWikiPerformAction( $output, $article, $title, $user, $request, $wiki );
+		$this->assertTrue( $result );
+	}
+
+	/**
+	 * @covers ::onMediaWikiPerformAction
+	 */
+	public function testEmptyProtectedActionsAllowsHistory() {
+		// Skip this test in MediaWiki environment - it requires service container
+		if ( !property_exists( '\MediaWiki\MediaWikiServices', 'testProtectedActions' ) ) {
+			$this->markTestSkipped(
+				'Test requires stub MediaWikiServices with testProtectedActions. Skipped in MediaWiki environment.'
+			);
+		}
+
+		// Set empty array to allow all actions
+		\MediaWiki\MediaWikiServices::$testProtectedActions = [];
+
+		$output = $this->createMock( self::$outputPageClassName );
+
+		$request = $this->createMock( self::$webRequestClassName );
+		$request->method( 'getVal' )->willReturnCallback( static function ( $key, $default = null ) {
+			if ( $key === 'action' ) {
+				return 'history';
+			}
+			return $default;
+		} );
+
+		$user = $this->createMock( self::$userClassName );
+		$user->method( 'isRegistered' )->willReturn( false );
+
+		$article = $this->createMock( self::$articleClassName );
+		$title = $this->createMock( self::$titleClassName );
+		$wiki = $this->createMock( self::$actionEntryPointClassName );
+
+		$runner = $this->getMockBuilder( Hooks::class )
+			->onlyMethods( [ 'denyAccess' ] )
+			->getMock();
+		$runner->expects( $this->never() )->method( 'denyAccess' );
+
+		$result = $runner->onMediaWikiPerformAction( $output, $article, $title, $user, $request, $wiki );
+		$this->assertTrue( $result );
+	}
+
+	/**
+	 * @covers ::onMediaWikiPerformAction
+	 */
+	public function testCustomProtectedActionBlocks() {
+		// Skip this test in MediaWiki environment - it requires service container
+		if ( !property_exists( '\MediaWiki\MediaWikiServices', 'testProtectedActions' ) ) {
+			$this->markTestSkipped(
+				'Test requires stub MediaWikiServices with testProtectedActions. Skipped in MediaWiki environment.'
+			);
+		}
+
+		// Set custom protected actions
+		\MediaWiki\MediaWikiServices::$testProtectedActions = [ 'edit', 'delete' ];
+
+		$output = $this->createMock( self::$outputPageClassName );
+
+		$request = $this->createMock( self::$webRequestClassName );
+		$request->method( 'getVal' )->willReturnCallback( static function ( $key, $default = null ) {
+			if ( $key === 'action' ) {
+				return 'edit';
+			}
+			return $default;
+		} );
+
+		$user = $this->createMock( self::$userClassName );
+		$user->method( 'isRegistered' )->willReturn( false );
+
+		$article = $this->createMock( self::$articleClassName );
+		$title = $this->createMock( self::$titleClassName );
+		$wiki = $this->createMock( self::$actionEntryPointClassName );
+
+		$runner = $this->getMockBuilder( Hooks::class )
+			->onlyMethods( [ 'denyAccess' ] )
+			->getMock();
+		$runner->expects( $this->once() )->method( 'denyAccess' );
+
+		$result = $runner->onMediaWikiPerformAction( $output, $article, $title, $user, $request, $wiki );
+		$this->assertFalse( $result );
+	}
+
+	/**
+	 * @covers ::onMediaWikiPerformAction
+	 */
+	public function testCustomProtectedActionAllowsOtherActions() {
+		// Skip this test in MediaWiki environment - it requires service container
+		if ( !property_exists( '\MediaWiki\MediaWikiServices', 'testProtectedActions' ) ) {
+			$this->markTestSkipped(
+				'Test requires stub MediaWikiServices with testProtectedActions. Skipped in MediaWiki environment.'
+			);
+		}
+
+		// Set custom protected actions that don't include 'history'
+		\MediaWiki\MediaWikiServices::$testProtectedActions = [ 'edit', 'delete' ];
+
+		$output = $this->createMock( self::$outputPageClassName );
+
+		$request = $this->createMock( self::$webRequestClassName );
+		$request->method( 'getVal' )->willReturnCallback( static function ( $key, $default = null ) {
+			if ( $key === 'action' ) {
+				return 'history';
+			}
+			return $default;
+		} );
+
+		$user = $this->createMock( self::$userClassName );
+		$user->method( 'isRegistered' )->willReturn( false );
+
+		$article = $this->createMock( self::$articleClassName );
+		$title = $this->createMock( self::$titleClassName );
+		$wiki = $this->createMock( self::$actionEntryPointClassName );
+
+		$runner = $this->getMockBuilder( Hooks::class )
+			->onlyMethods( [ 'denyAccess' ] )
+			->getMock();
+		$runner->expects( $this->never() )->method( 'denyAccess' );
+
+		$result = $runner->onMediaWikiPerformAction( $output, $article, $title, $user, $request, $wiki );
+		$this->assertTrue( $result );
+	}
+
+	/**
+	 * @covers ::onMediaWikiPerformAction
+	 */
+	public function testDiffParameterBlocksAnonymous() {
+		$output = $this->createMock( self::$outputPageClassName );
+
+		$request = $this->createMock( self::$webRequestClassName );
+		$request->method( 'getVal' )->willReturnMap( [
+			[ 'diff', null, '1234' ],
+		] );
+
+		$user = $this->createMock( self::$userClassName );
+		$user->method( 'isRegistered' )->willReturn( false );
+
+		$article = $this->createMock( self::$articleClassName );
+		$title = $this->createMock( self::$titleClassName );
+		$wiki = $this->createMock( self::$actionEntryPointClassName );
+
+		$runner = $this->getMockBuilder( Hooks::class )
+			->onlyMethods( [ 'denyAccess' ] )
+			->getMock();
+		$runner->expects( $this->once() )->method( 'denyAccess' );
+
+		$result = $runner->onMediaWikiPerformAction( $output, $article, $title, $user, $request, $wiki );
+		$this->assertFalse( $result );
+	}
+
+	/**
+	 * @covers ::onMediaWikiPerformAction
+	 */
+	public function testOldidParameterBlocksAnonymous() {
+		$output = $this->createMock( self::$outputPageClassName );
+
+		$request = $this->createMock( self::$webRequestClassName );
+		$request->method( 'getVal' )->willReturnMap( [
+			[ 'oldid', null, '5678' ],
+		] );
+
+		$user = $this->createMock( self::$userClassName );
+		$user->method( 'isRegistered' )->willReturn( false );
+
+		$article = $this->createMock( self::$articleClassName );
+		$title = $this->createMock( self::$titleClassName );
+		$wiki = $this->createMock( self::$actionEntryPointClassName );
+
+		$runner = $this->getMockBuilder( Hooks::class )
+			->onlyMethods( [ 'denyAccess' ] )
+			->getMock();
+		$runner->expects( $this->once() )->method( 'denyAccess' );
+
+		$result = $runner->onMediaWikiPerformAction( $output, $article, $title, $user, $request, $wiki );
+		$this->assertFalse( $result );
+	}
+
 	/**
 	 * @covers ::onSpecialPageBeforeExecute
 	 * @dataProvider provideBlockedSpecialPages