diff --git a/src/Controller/RequestController.php b/src/Controller/RequestController.php
index 706389c..646b632 100644
--- a/src/Controller/RequestController.php
+++ b/src/Controller/RequestController.php
@@ -5,8 +5,10 @@ namespace App\Controller;
 error_reporting(error_level: E_ALL);
 
 use App\Entity\Domain;
+use App\Entity\DynDNS;
 use App\Repository\ApikeyRepository;
 use App\Repository\DomainRepository;
+use App\Repository\DynDNSRepository;
 use App\Repository\PanelRepository;
 use DI\Container;
 use DI\ContainerBuilder;
@@ -55,6 +57,7 @@ class RequestController
 	private DomainController $domainController;
 	private DomainRepository $domainRepository;
 	private PanelRepository $panelRepository;
+	private DynDNSRepository $DynDNSRepository;
 	private Container $container;
 	private string $header;
 	private array $result;
@@ -73,7 +76,6 @@ class RequestController
 	{
 		$this->requestMethod = strtoupper(string: $requestMethod);
 		
-		
 		$dateFormat = "Y:m:d H:i:s";
 		$output = "%datetime% %channel%.%level_name% %message%\n"; // %context% %extra%
 		$formatter = new LineFormatter(format: $output, dateFormat: $dateFormat);
@@ -84,6 +86,10 @@ class RequestController
 		$this->log = new Logger(name: 'bindAPI');
 		$this->log->pushHandler(handler: $stream);
 		
+		if ($this->config['debug']) {
+			$this->log->debug(message: 'RequestController::__construct');
+		}
+		
 		
 		$containerBuilder = new ContainerBuilder();
 		$containerBuilder->addDefinitions([
@@ -94,6 +100,9 @@ class RequestController
 			DomainRepository::class   => autowire()
 				->constructorParameter(parameter: 'config', value: $this->config)
 				->constructorParameter(parameter: 'log', value: $this->log),
+			DynDNSRepository::class   => autowire()
+				->constructorParameter(parameter: 'config', value: $this->config)
+				->constructorParameter(parameter: 'log', value: $this->log),
 		
 		]);
 		$this->container = $containerBuilder->build();
@@ -103,6 +112,7 @@ class RequestController
 		$this->domainController = $this->container->get(name: DomainController::class);
 		$this->domainRepository = $this->container->get(name: DomainRepository::class);
 		$this->panelRepository = $this->container->get(name: PanelRepository::class);
+		$this->dynDNSRepository = $this->container->get(name: DynDNSRepository::class);
 	}
 	
 	/**
@@ -288,7 +298,6 @@ class RequestController
 			echo $this->status;
 		} else {
 			echo json_encode(value: [
-				'status'  => $this->status ?? "Error: No status",
 				'message' => $this->message ?? "Error: No message."
 			]);
 		}
@@ -516,6 +525,10 @@ class RequestController
 	
 	private function handleDynDNS()
 	{
+		if ($this->config['debug']) {
+			$this->log->debug(message: 'handleDynDNS()');
+		}
+		
 		if ($this->checkPassword()) {
 			$host = $this->uri[3] ?? '';
 			
@@ -536,109 +549,159 @@ class RequestController
 					}
 				}
 				
+				if ($this->config['debug']) {
+					$this->log->debug(message: 'a: ' . $a);
+					$this->log->debug(message: 'aaaa: ' . $aaaa);
+				}
+				
+				
 				$domainName = $this->getDomain(host: $host);
 				$hostName = str_replace(search: '.' . $domainName, replace: '', subject: $host);
-				$domain = $this->domainRepository->findByName(name: $domainName);
-				$panel = $this->panelRepository->findByName(name: $domain->getPanel());
-				
-				if (!empty($panel->getAaaa())) {
-					$domainData = $this->apiController->sendCommand(
-						requestType: 'GET',
-						serverName : $panel->getName(),
-						versionIP  : 6,
-						apiKey     : $panel->getApikey(),
-						command    : 'domains/name/' . $domainName,
-						serverType : 'panel');
+				if (!$domain = $this->domainRepository->findByName(name: $domainName)) {
+					$this->header = '404 Not Found';
+					$this->message = 'Domain ' . $domainName . ' not found';
 				} else {
-					$domainData = $this->apiController->sendCommand(
-						requestType: 'GET',
-						serverName : $panel->getName(),
-						versionIP  : 4,
-						apiKey     : $panel->getApikey(),
-						command    : 'domains/name/' . $domainName,
-						serverType : 'panel');
-				}
-				
-				$domainDecodedData = json_decode(json: $domainData['data']);
-				$domainID = $domainDecodedData->id;
-				
-				if (!empty($panel->getAaaa())) {
-					$dnsData = $this->apiController->sendCommand(
-						requestType: 'GET',
-						serverName : $panel->getName(),
-						versionIP  : 6,
-						apiKey     : $panel->getApikey(),
-						command    : 'dns/' . $domainID,
-						serverType : 'panel');
-				} else {
-					$dnsData = $this->apiController->sendCommand(
-						requestType: 'GET',
-						serverName : $panel->getName(),
-						versionIP  : 4,
-						apiKey     : $panel->getApikey(),
-						command    : 'dns/' . $domainID,
-						serverType : 'panel');
-				}
-				
-				$dnsDataDecoded = json_decode(json: $dnsData['data']);
-				$soa = $dnsDataDecoded->records->soa;
-				$others = $dnsDataDecoded->records->other;
-				
-				$hostFound = false;
-				
-				$updateHost = function (object $host) use ($hostName, $a, $aaaa, &$hostFound) {
-					if ($host->host == $hostName) {
-						$hostFound = true;
-						if ($host->type == 'A') {
-							if (!empty($a)) {
-								$host->value = $a;
-							}
-						} else {
-							if (!empty($aaaa)) {
-								$host->value = $aaaa;
+					
+					// check if address has changed
+					if ($dynDNS = $this->dynDNSRepository->findByName(name: $host)) {
+						echo 'found host';
+						print_r($dynDNS);
+						
+						print("a: $a");
+						print("aaaa: $aaaa");
+						
+						$ipChanged = false;
+						
+						if (!empty($a)) {
+							if ($a != $dynDNS->getA()) {
+								echo $a . '!=' . $dynDNS->getA();
+								$dynDNS->setA(a: $a);
+								$ipChanged = true;
 							}
 						}
+						
+						if (!empty($aaaa)) {
+							if ($aaaa != $dynDNS->getAaaa()) {
+								$dynDNS->setAaaa(aaaa: $aaaa);
+								
+								$ipChanged = true;
+							}
+						}
+						
+						if (!$ipChanged) {
+							$this->header = '304 Not Modified';
+							$this->message = 'Not modified';
+							
+						} else {
+							$this->dynDNSRepository->update(dynDNS: $dynDNS);
+						}
+					} else {
+						$dynDNS = new DynDNS(name: $host, a: $a, aaaa: $aaaa);
+						$this->dynDNSRepository->insert(dynDNS: $dynDNS);
 					}
-				};
-				
-				array_map(callback: $updateHost, array: $others);
-				
-				if ($hostFound) {
-					$newDnsData = json_encode(value: [
-						'records' => [
-							'soa'   => $soa,
-							'other' => $others
-						]
-					]);
+					
+					
+					$panel = $this->panelRepository->findByName(name: $domain->getPanel());
 					
 					if (!empty($panel->getAaaa())) {
-						$result = $this->apiController->sendCommand(
-							requestType: 'PUT',
+						$domainData = $this->apiController->sendCommand(
+							requestType: 'GET',
+							serverName : $panel->getName(),
+							versionIP  : 6,
+							apiKey     : $panel->getApikey(),
+							command    : 'domains/name/' . $domainName,
+							serverType : 'panel');
+					} else {
+						$domainData = $this->apiController->sendCommand(
+							requestType: 'GET',
+							serverName : $panel->getName(),
+							versionIP  : 4,
+							apiKey     : $panel->getApikey(),
+							command    : 'domains/name/' . $domainName,
+							serverType : 'panel');
+					}
+					
+					$domainDecodedData = json_decode(json: $domainData['data']);
+					$domainID = $domainDecodedData->id;
+					
+					if (!empty($panel->getAaaa())) {
+						$dnsData = $this->apiController->sendCommand(
+							requestType: 'GET',
 							serverName : $panel->getName(),
 							versionIP  : 6,
 							apiKey     : $panel->getApikey(),
 							command    : 'dns/' . $domainID,
-							serverType : 'panel',
-							body       : json_decode(json: $newDnsData, associative: true)
-						);
+							serverType : 'panel');
 					} else {
-						$result = $this->apiController->sendCommand(
-							requestType: 'PUT',
+						$dnsData = $this->apiController->sendCommand(
+							requestType: 'GET',
 							serverName : $panel->getName(),
 							versionIP  : 4,
 							apiKey     : $panel->getApikey(),
 							command    : 'dns/' . $domainID,
-							serverType : 'panel',
-							body       : json_decode(json: $newDnsData, associative: true)
-						);
+							serverType : 'panel');
 					}
-					if ($result['header'] == 200) {
-						$this->header = '200 OK';
-						$this->status = json_encode(value: ['message' => 'DynDNS host successfully updated']);
+					
+					$dnsDataDecoded = json_decode(json: $dnsData['data']);
+					$soa = $dnsDataDecoded->records->soa;
+					$others = $dnsDataDecoded->records->other;
+					
+					$hostFound = false;
+					
+					$updateHost = function (object $host) use ($hostName, $a, $aaaa, &$hostFound) {
+						if ($host->host == $hostName) {
+							$hostFound = true;
+							if ($host->type == 'A') {
+								if (!empty($a)) {
+									$host->value = $a;
+								}
+							} else {
+								if (!empty($aaaa)) {
+									$host->value = $aaaa;
+								}
+							}
+						}
+					};
+					
+					array_map(callback: $updateHost, array: $others);
+					
+					if ($hostFound) {
+						$newDnsData = json_encode(value: [
+							'records' => [
+								'soa'   => $soa,
+								'other' => $others
+							]
+						]);
+						
+						if (!empty($panel->getAaaa())) {
+							$result = $this->apiController->sendCommand(
+								requestType: 'PUT',
+								serverName : $panel->getName(),
+								versionIP  : 6,
+								apiKey     : $panel->getApikey(),
+								command    : 'dns/' . $domainID,
+								serverType : 'panel',
+								body       : json_decode(json: $newDnsData, associative: true)
+							);
+						} else {
+							$result = $this->apiController->sendCommand(
+								requestType: 'PUT',
+								serverName : $panel->getName(),
+								versionIP  : 4,
+								apiKey     : $panel->getApikey(),
+								command    : 'dns/' . $domainID,
+								serverType : 'panel',
+								body       : json_decode(json: $newDnsData, associative: true)
+							);
+						}
+						if ($result['header'] == 200) {
+							$this->header = '200 OK';
+							$this->message = 'DynDNS host successfully updated';
+						}
+					} else {
+						$this->header = '404 Not Found';
+						$this->message = 'Host ' . $hostName . ' not found';
 					}
-				} else {
-					$this->header = '404 Not Found';
-					$this->status = 'Host ' . COLOR_YELLOW . $hostName . ' not found';
 				}
 			}
 		}