diff --git a/Makefile b/Makefile
index 04cde88..2bd666d 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,8 @@ fix:
 
 lint:
 	php $(HERE)/vendor/bin/php-cs-fixer fix --config=$(HERE)/.php_cs --dry-run
+	php $(HERE)/vendor/bin/phpmd src/ text cleancode,codesize,controversial,design,naming,unusedcode
+	php $(HERE)/vendor/bin/phpmd tests/ text cleancode,codesize,controversial,design,naming,unusedcode
 
 test:
 	php $(HERE)/vendor/bin/phpunit --configuration $(HERE)/phpunit.xml
diff --git a/src/Configurations/PageRulesActions.php b/src/Configurations/PageRulesActions.php
index cdb03c8..c52ddc1 100644
--- a/src/Configurations/PageRulesActions.php
+++ b/src/Configurations/PageRulesActions.php
@@ -159,12 +159,12 @@ class PageRulesActions implements Configurations
         ]);
     }
 
-    public function setMinification(bool $html, bool $css, bool $js)
+    public function setMinification(bool $html, bool $css, bool $javascript)
     {
         $this->addConfigurationOption("minification", [
             'html' => $this->getBoolAsOnOrOff($html),
             'css' => $this->getBoolAsOnOrOff($css),
-            'js' => $this->getBoolAsOnOrOff($js),
+            'js' => $this->getBoolAsOnOrOff($javascript),
         ]);
     }
 
@@ -297,9 +297,9 @@ class PageRulesActions implements Configurations
         return $this->configs;
     }
 
-    private function addConfigurationOption($id, array $configuration)
+    private function addConfigurationOption(string $setting, array $configuration)
     {
-        $configuration['id'] = $id;
+        $configuration['id'] = $setting;
 
         array_push($this->configs, (object) $configuration);
     }
diff --git a/src/Endpoints/DNS.php b/src/Endpoints/DNS.php
index 9adb9aa..ff4b5bf 100644
--- a/src/Endpoints/DNS.php
+++ b/src/Endpoints/DNS.php
@@ -19,6 +19,17 @@ class DNS implements API
         $this->adapter = $adapter;
     }
 
+    /**
+     * @SuppressWarnings(PHPMD.BooleanArgumentFlag)
+     *
+     * @param string $zoneID
+     * @param string $type
+     * @param string $name
+     * @param string $content
+     * @param int $ttl
+     * @param bool $proxied
+     * @return bool
+     */
     public function addRecord(
         string $zoneID,
         string $type,
diff --git a/src/Endpoints/PageRules.php b/src/Endpoints/PageRules.php
index d171c61..c8be3ab 100644
--- a/src/Endpoints/PageRules.php
+++ b/src/Endpoints/PageRules.php
@@ -21,6 +21,16 @@ class PageRules implements API
         $this->adapter = $adapter;
     }
 
+    /**
+     * @SuppressWarnings(PHPMD.BooleanArgumentFlag)
+     *
+     * @param string $zoneID
+     * @param PageRulesTargets $target
+     * @param PageRulesActions $actions
+     * @param bool $active
+     * @param int|null $priority
+     * @return bool
+     */
     public function createPageRule(
         string $zoneID,
         PageRulesTargets $target,
diff --git a/src/Endpoints/UARules.php b/src/Endpoints/UARules.php
index 8741eab..0da89a9 100644
--- a/src/Endpoints/UARules.php
+++ b/src/Endpoints/UARules.php
@@ -43,7 +43,7 @@ class UARules implements API
         string $zoneID,
         string $mode,
         \Cloudflare\API\Configurations\Configurations $configuration,
-        string $id = null,
+        string $ruleID = null,
         string $description = null
     ): bool {
         $options = [
@@ -51,8 +51,8 @@ class UARules implements API
             'configurations' => $configuration->getArray()
         ];
 
-        if ($id !== null) {
-            $options['id'] = $id;
+        if ($ruleID !== null) {
+            $options['id'] = $ruleID;
         }
 
         if ($description !== null) {
diff --git a/src/Endpoints/ZoneLockdown.php b/src/Endpoints/ZoneLockdown.php
index 985d232..a827e59 100644
--- a/src/Endpoints/ZoneLockdown.php
+++ b/src/Endpoints/ZoneLockdown.php
@@ -43,7 +43,7 @@ class ZoneLockdown implements API
         string $zoneID,
         array $urls,
         \Cloudflare\API\Configurations\ZoneLockdown $configuration,
-        string $id = null,
+        string $lockdownID = null,
         string $description = null
     ): bool {
         $options = [
@@ -51,8 +51,8 @@ class ZoneLockdown implements API
             'configurations' => $configuration->getArray()
         ];
 
-        if ($id !== null) {
-            $options['id'] = $id;
+        if ($lockdownID !== null) {
+            $options['id'] = $lockdownID;
         }
 
         if ($description !== null) {
diff --git a/src/Endpoints/Zones.php b/src/Endpoints/Zones.php
index da9ddfe..d0a87c7 100644
--- a/src/Endpoints/Zones.php
+++ b/src/Endpoints/Zones.php
@@ -19,6 +19,14 @@ class Zones implements API
         $this->adapter = $adapter;
     }
 
+    /**
+     * @SuppressWarnings(PHPMD.BooleanArgumentFlag)
+     *
+     * @param string $name
+     * @param bool $jumpstart
+     * @param string $organizationID
+     * @return \stdClass
+     */
     public function addZone(string $name, bool $jumpstart = false, string $organizationID = ''): \stdClass
     {
         $options = [
diff --git a/tests/Adapter/GuzzleTest.php b/tests/Adapter/GuzzleTest.php
index ba4d58e..de97374 100644
--- a/tests/Adapter/GuzzleTest.php
+++ b/tests/Adapter/GuzzleTest.php
@@ -133,6 +133,6 @@ class GuzzleTest extends TestCase
     public function testNotFound()
     {
         $this->expectException(\GuzzleHttp\Exception\RequestException::class);
-        $response = $this->client->get('https://httpbin.org/status/404');
+        $this->client->get('https://httpbin.org/status/404');
     }
 }
diff --git a/tests/Endpoints/PageRulesTest.php b/tests/Endpoints/PageRulesTest.php
index f4ee4ba..7c580d0 100644
--- a/tests/Endpoints/PageRulesTest.php
+++ b/tests/Endpoints/PageRulesTest.php
@@ -34,8 +34,8 @@ class PageRulesTest extends TestCase
                 ])
             );
 
-        $pr = new \Cloudflare\API\Endpoints\PageRules($mock);
-        $result = $pr->createPageRule('023e105f4ecef8ad9ca31a8372d0c353', $target, $action, true, 1);
+        $pageRules = new \Cloudflare\API\Endpoints\PageRules($mock);
+        $result = $pageRules->createPageRule('023e105f4ecef8ad9ca31a8372d0c353', $target, $action, true, 1);
 
         $this->assertTrue($result);
     }
@@ -60,8 +60,8 @@ class PageRulesTest extends TestCase
               $this->equalTo([])
             );
 
-        $pr = new \Cloudflare\API\Endpoints\PageRules($mock);
-        $pr->listPageRules('023e105f4ecef8ad9ca31a8372d0c353', 'active', 'status', 'desc', 'all');
+        $pageRules = new \Cloudflare\API\Endpoints\PageRules($mock);
+        $pageRules->listPageRules('023e105f4ecef8ad9ca31a8372d0c353', 'active', 'status', 'desc', 'all');
     }
 
     public function testGetPageRuleDetails()
@@ -78,8 +78,8 @@ class PageRulesTest extends TestCase
                 $this->equalTo([])
             );
 
-        $pr = new \Cloudflare\API\Endpoints\PageRules($mock);
-        $pr->getPageRuleDetails('023e105f4ecef8ad9ca31a8372d0c353', '9a7806061c88ada191ed06f989cc3dac');
+        $pageRules = new \Cloudflare\API\Endpoints\PageRules($mock);
+        $pageRules->getPageRuleDetails('023e105f4ecef8ad9ca31a8372d0c353', '9a7806061c88ada191ed06f989cc3dac');
     }
 
     public function testUpdatePageRule()
@@ -106,8 +106,8 @@ class PageRulesTest extends TestCase
                 ])
             );
 
-        $pr = new \Cloudflare\API\Endpoints\PageRules($mock);
-        $result = $pr->updatePageRule('023e105f4ecef8ad9ca31a8372d0c353', $target, $action, true, 1);
+        $pageRules = new \Cloudflare\API\Endpoints\PageRules($mock);
+        $result = $pageRules->updatePageRule('023e105f4ecef8ad9ca31a8372d0c353', $target, $action, true, 1);
 
         $this->assertTrue($result);
     }
@@ -127,8 +127,8 @@ class PageRulesTest extends TestCase
                 $this->equalTo([])
             );
 
-        $pr = new \Cloudflare\API\Endpoints\PageRules($mock);
-        $result = $pr->deletePageRule('023e105f4ecef8ad9ca31a8372d0c353', '9a7806061c88ada191ed06f989cc3dac');
+        $pageRules = new \Cloudflare\API\Endpoints\PageRules($mock);
+        $result = $pageRules->deletePageRule('023e105f4ecef8ad9ca31a8372d0c353', '9a7806061c88ada191ed06f989cc3dac');
 
         $this->assertTrue($result);
     }
diff --git a/tests/Endpoints/UARulesTest.php b/tests/Endpoints/UARulesTest.php
index 6854b2b..987069a 100644
--- a/tests/Endpoints/UARulesTest.php
+++ b/tests/Endpoints/UARulesTest.php
@@ -6,8 +6,6 @@
  * Time: 15:19
  */
 
-use Cloudflare\API\Endpoints\UARules;
-
 class UARulesTest extends TestCase
 {
     public function testListRules()
@@ -61,8 +59,8 @@ class UARulesTest extends TestCase
                 ])
             );
 
-        $ld = new \Cloudflare\API\Endpoints\UARules($mock);
-        $ld->createRule(
+        $rules = new \Cloudflare\API\Endpoints\UARules($mock);
+        $rules->createRule(
             '023e105f4ecef8ad9ca31a8372d0c353',
             'js_challenge',
             $config,
@@ -114,8 +112,8 @@ class UARulesTest extends TestCase
                 ])
             );
 
-        $ld = new \Cloudflare\API\Endpoints\UARules($mock);
-        $ld->updateRule(
+        $rules = new \Cloudflare\API\Endpoints\UARules($mock);
+        $rules->updateRule(
             '023e105f4ecef8ad9ca31a8372d0c353',
             '372e67954025e0ba6aaa6d586b9e0b59',
             'js_challenge',
@@ -139,7 +137,7 @@ class UARulesTest extends TestCase
                 $this->equalTo([])
             );
 
-        $ld = new \Cloudflare\API\Endpoints\UARules($mock);
-        $ld->deleteRule('023e105f4ecef8ad9ca31a8372d0c353', '372e67954025e0ba6aaa6d586b9e0b59');
+        $rules = new \Cloudflare\API\Endpoints\UARules($mock);
+        $rules->deleteRule('023e105f4ecef8ad9ca31a8372d0c353', '372e67954025e0ba6aaa6d586b9e0b59');
     }
 }
diff --git a/tests/Endpoints/ZoneLockdownTest.php b/tests/Endpoints/ZoneLockdownTest.php
index 4c7f314..066ebef 100644
--- a/tests/Endpoints/ZoneLockdownTest.php
+++ b/tests/Endpoints/ZoneLockdownTest.php
@@ -59,8 +59,8 @@ class ZoneLockdownTest extends TestCase
                 ])
             );
 
-        $ld = new \Cloudflare\API\Endpoints\ZoneLockdown($mock);
-        $ld->createLockdown(
+        $zoneLockdown = new \Cloudflare\API\Endpoints\ZoneLockdown($mock);
+        $zoneLockdown->createLockdown(
             '023e105f4ecef8ad9ca31a8372d0c353',
             ["api.mysite.com/some/endpoint*"],
             $config,
@@ -112,8 +112,8 @@ class ZoneLockdownTest extends TestCase
                 ])
             );
 
-        $ld = new \Cloudflare\API\Endpoints\ZoneLockdown($mock);
-        $ld->updateLockdown(
+        $zoneLockdown = new \Cloudflare\API\Endpoints\ZoneLockdown($mock);
+        $zoneLockdown->updateLockdown(
             '023e105f4ecef8ad9ca31a8372d0c353',
             '372e67954025e0ba6aaa6d586b9e0b59',
             ["api.mysite.com/some/endpoint*"],
@@ -140,7 +140,7 @@ class ZoneLockdownTest extends TestCase
                 $this->equalTo([])
             );
 
-        $ld = new \Cloudflare\API\Endpoints\ZoneLockdown($mock);
-        $ld->deleteLockdown('023e105f4ecef8ad9ca31a8372d0c353', '372e67954025e0ba6aaa6d586b9e0b59');
+        $zoneLockdown = new \Cloudflare\API\Endpoints\ZoneLockdown($mock);
+        $zoneLockdown->deleteLockdown('023e105f4ecef8ad9ca31a8372d0c353', '372e67954025e0ba6aaa6d586b9e0b59');
     }
 }