diff --git a/.env.example b/.env.example
index 91b2f8f..1580d8a 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,6 @@
 COMPOSE_PROJECT_NAME="iplist"
 STORAGE_SAVE_INTERVAL="120"
+SYS_DNS_RESOLVE_CHUNK_SIZE="10"
 SYS_DNS_RESOLVE_DELAY="100"
 SYS_MEMORY_LIMIT="1024M"
 SYS_TIMEZONE="Europe/Moscow"
diff --git a/src/Domain/Entity/Site.php b/src/Domain/Entity/Site.php
index eb65342..b38cfbd 100644
--- a/src/Domain/Entity/Site.php
+++ b/src/Domain/Entity/Site.php
@@ -10,6 +10,8 @@ use OpenCCK\Infrastructure\API\App;
 
 use Revolt\EventLoop;
 use stdClass;
+use function Amp\async;
+use function Amp\Future\await;
 
 final class Site {
     private DNSHelper $dnsHelper;
@@ -47,10 +49,12 @@ final class Site {
     private function reload(): void {
         $ip4 = [];
         $ip6 = [];
-        foreach ($this->domains as $domain) {
-            [$ipv4results, $ipv6results] = $this->dnsHelper->resolve($domain);
-            $ip4 = array_merge($ip4, $ipv4results);
-            $ip6 = array_merge($ip6, $ipv6results);
+        foreach (array_chunk($this->domains, \OpenCCK\getEnv('SYS_DNS_RESOLVE_CHUNK_SIZE') ?? 10) as $chunk) {
+            $executions = array_map(fn(string $domain) => async(fn() => $this->dnsHelper->resolve($domain)), $chunk);
+            foreach (await($executions) as $result) {
+                $ip4 = array_merge($ip4, $result[0]);
+                $ip6 = array_merge($ip6, $result[1]);
+            }
         }
 
         $newIp4 = SiteFactory::normalize(array_diff($ip4, $this->ip4), true);
@@ -147,4 +151,25 @@ final class Site {
             json_encode($this->getConfig(), JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE)
         );
     }
+
+    /**
+     * @param bool $wildcard
+     * @return array
+     */
+    public function getDomains(bool $wildcard = false): array {
+        if ($wildcard) {
+            $domains = [];
+            foreach ($this->domains as $domain) {
+                $parts = explode('.', $domain);
+                $wildcardDomain = array_slice($parts, -2);
+                if (in_array(implode('.', $wildcardDomain), SiteFactory::TWO_LEVEL_DOMAIN_ZONES)) {
+                    $wildcardDomain = array_slice($parts, -3);
+                }
+                $domains[] = implode('.', $wildcardDomain);
+            }
+            return SiteFactory::normalizeArray($domains);
+        }
+
+        return $this->domains;
+    }
 }
diff --git a/src/Domain/Helper/DNSHelper.php b/src/Domain/Helper/DNSHelper.php
index 91f44cf..43b01bf 100644
--- a/src/Domain/Helper/DNSHelper.php
+++ b/src/Domain/Helper/DNSHelper.php
@@ -6,6 +6,7 @@ use Amp\Dns\DnsConfig;
 use Amp\Dns\DnsConfigLoader;
 
 use Amp\Dns\DnsRecord;
+use Amp\Dns\DnsResolver;
 use Amp\Dns\HostLoader;
 use Amp\Dns\Rfc1035StubDnsResolver;
 
@@ -13,8 +14,7 @@ use OpenCCK\Infrastructure\API\App;
 use Throwable;
 
 use function Amp\delay;
-use function Amp\Dns\dnsResolver;
-use function Amp\Dns\resolve;
+use function Amp\Dns\dnsResolver as dnsResolverFactory;
 
 class DNSHelper {
     private float $resolveDelay;
@@ -25,10 +25,10 @@ class DNSHelper {
 
     /**
      * @param array $dnsServers
-     * @return void
+     * @return DnsResolver
      */
-    private function setResolver(array $dnsServers): void {
-        dnsResolver(
+    private function getResolver(array $dnsServers): DnsResolver {
+        return dnsResolverFactory(
             new Rfc1035StubDnsResolver(
                 null,
                 new class ($dnsServers) implements DnsConfigLoader {
@@ -51,27 +51,26 @@ class DNSHelper {
         $ipv4 = [];
         $ipv6 = [];
         foreach ($this->dnsServers as $server) {
+            delay($this->resolveDelay);
+            $dnsResolver = $this->getResolver([$server]);
             try {
-                $this->setResolver([$server]);
                 $ipv4 = array_merge(
                     $ipv4,
-                    array_map(fn(DnsRecord $record) => $record->getValue(), resolve($domain, DnsRecord::A))
+                    array_map(fn(DnsRecord $record) => $record->getValue(), $dnsResolver->resolve($domain, DnsRecord::A))
                 );
             } catch (Throwable $e) {
                 App::getLogger()->error($e->getMessage(), [$server]);
             }
-            delay($this->resolveDelay);
 
+            delay($this->resolveDelay);
             try {
-                $this->setResolver([$server]);
                 $ipv6 = array_merge(
                     $ipv6,
-                    array_map(fn(DnsRecord $record) => $record->getValue(), resolve($domain, DnsRecord::AAAA))
+                    array_map(fn(DnsRecord $record) => $record->getValue(), $dnsResolver->resolve($domain, DnsRecord::AAAA))
                 );
             } catch (Throwable $e) {
                 App::getLogger()->error($e->getMessage(), [$server]);
             }
-            delay($this->resolveDelay);
         }
         App::getLogger()->debug('resolve: ' . $domain, [count($ipv4), count($ipv6)]);
         return [$ipv4, $ipv6];