diff --git a/src/main/java/me/ishift/epicguard/core/check/impl/ProxyCheck.java b/src/main/java/me/ishift/epicguard/core/check/impl/ProxyCheck.java
index f293346d..c6791540 100644
--- a/src/main/java/me/ishift/epicguard/core/check/impl/ProxyCheck.java
+++ b/src/main/java/me/ishift/epicguard/core/check/impl/ProxyCheck.java
@@ -8,6 +8,8 @@
 import java.util.List;
 
 public class ProxyCheck extends Check {
+    private int requests;
+
     public ProxyCheck(EpicGuard epicGuard) {
         super(epicGuard);
     }
@@ -15,21 +17,34 @@ public ProxyCheck(EpicGuard epicGuard) {
     @Override
     public boolean check(String address, String nickname) {
         CheckMode mode = CheckMode.valueOf(this.getConfig().proxyCheck);
-        String url = "http://proxycheck.io/v2/" + address + "?key=" + this.getConfig().proxyCheckKey + "&vpn=1";
 
         switch (mode) {
             case NEVER:
                 return false;
             case ALWAYS:
-                return URLUtils.readString(url).contains("yes");
+                return this.proxyCheck(address);
             case ATTACK:
                 if (this.getEpicGuard().isAttack()) {
-                    return URLUtils.readString(url).contains("yes");
+                    return this.proxyCheck(address);
                 }
         }
         return false;
     }
 
+    private boolean proxyCheck(String address) {
+        if (this.requests > this.getConfig().requestLimit) {
+            return false;
+        }
+
+        String url = "http://proxycheck.io/v2/" + address + "?key=" + this.getConfig().proxyCheckKey + "&vpn=1";
+        if (!this.getConfig().customProxyCheck.equals("disabled")) {
+            url = this.getConfig().customProxyCheck.replace("%ip%", address);
+        }
+
+        this.requests++;
+        return URLUtils.readString(url).contains("yes");
+    }
+
     @Override
     public List<String> getKickMessage() {
         return this.getEpicGuard().getMessages().kickMessageProxy;
diff --git a/src/main/java/me/ishift/epicguard/core/config/PluginConfiguration.java b/src/main/java/me/ishift/epicguard/core/config/PluginConfiguration.java
index 00940e66..e627afb7 100644
--- a/src/main/java/me/ishift/epicguard/core/config/PluginConfiguration.java
+++ b/src/main/java/me/ishift/epicguard/core/config/PluginConfiguration.java
@@ -112,6 +112,18 @@ public class PluginConfiguration {
     @CfgComment(" ")
     @CfgComment("")
 
+    @CfgComment("If you want to use other proxy/vpn checker")
+    @CfgComment("than default (proxycheck.io), you can set it here.")
+    @CfgComment("Available placeholders: %ip%")
+    @CfgStringStyle(CfgStringStyle.StringStyle.ALWAYS_QUOTED)
+    @CfgName("custom-proxy-check-url")
+    public String customProxyCheck = "disabled";
+
+    @CfgComment("Limit of requests sent by the proxy/vpn checker.")
+    @CfgComment("Default (1000) is limit for proxycheck.io with free key.")
+    @CfgComment("request-limit")
+    public int requestLimit = 1000;
+
     @CfgComment("If log message contains one of these words, it will")
     @CfgComment("be hidden. This can save a lot of CPU on big attacks.")
     @CfgCollectionStyle(CfgCollectionStyle.CollectionStyle.ALWAYS_NEW_LINE)
diff --git a/src/main/java/me/ishift/epicguard/core/user/Account.java b/src/main/java/me/ishift/epicguard/core/user/Account.java
index f0734f2e..6ccd4082 100644
--- a/src/main/java/me/ishift/epicguard/core/user/Account.java
+++ b/src/main/java/me/ishift/epicguard/core/user/Account.java
@@ -8,11 +8,12 @@ public class Account {
     private final List<String> nicknames;
 
     public Account(EpicGuard epicGuard, String address, String nickname) {
-        this.nicknames = epicGuard.getStorageManager().getData().getStringList("account-limiter." + address);
+        String ip = address.replace(".", "@");
+        this.nicknames = epicGuard.getStorageManager().getData().getStringList("account-limiter." + ip);
         if (!this.nicknames.contains(nickname)) {
             this.nicknames.add(nickname);
         }
-        epicGuard.getStorageManager().getData().set("account-limiter." + address, this.nicknames);
+        epicGuard.getStorageManager().getData().set("account-limiter." + ip, this.nicknames);
     }
 
     public List<String> getNicknames() {