diff --git a/src/main/java/io/jare/cached/CdBase.java b/src/main/java/io/jare/cached/CdBase.java
index 0fc1569..b0983f1 100644
--- a/src/main/java/io/jare/cached/CdBase.java
+++ b/src/main/java/io/jare/cached/CdBase.java
@@ -28,6 +28,8 @@
 import io.jare.model.Domain;
 import io.jare.model.User;
 import java.util.concurrent.TimeUnit;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * Cached Base.
@@ -36,6 +38,8 @@
  * @version $Id$
  * @since 1.0
  */
+@ToString
+@EqualsAndHashCode(of = "origin")
 public final class CdBase implements Base {
 
     /**
diff --git a/src/main/java/io/jare/cached/CdDomain.java b/src/main/java/io/jare/cached/CdDomain.java
index 27b4157..910ba38 100644
--- a/src/main/java/io/jare/cached/CdDomain.java
+++ b/src/main/java/io/jare/cached/CdDomain.java
@@ -26,6 +26,8 @@
 import io.jare.model.Domain;
 import io.jare.model.Usage;
 import java.io.IOException;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * Cached Domain.
@@ -34,6 +36,8 @@
  * @version $Id$
  * @since 1.0
  */
+@ToString
+@EqualsAndHashCode(of = "origin")
 final class CdDomain implements Domain {
 
     /**
diff --git a/src/main/java/io/jare/cached/CdUsage.java b/src/main/java/io/jare/cached/CdUsage.java
index 0a78381..2dd6d7c 100644
--- a/src/main/java/io/jare/cached/CdUsage.java
+++ b/src/main/java/io/jare/cached/CdUsage.java
@@ -28,6 +28,8 @@
 import java.util.Date;
 import java.util.SortedMap;
 import java.util.concurrent.TimeUnit;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * Cached Usage.
@@ -36,6 +38,8 @@
  * @version $Id$
  * @since 0.7
  */
+@ToString
+@EqualsAndHashCode(of = "origin")
 final class CdUsage implements Usage {
 
     /**
diff --git a/src/main/java/io/jare/dynamo/DyBase.java b/src/main/java/io/jare/dynamo/DyBase.java
index 92ac091..7bdf5c9 100644
--- a/src/main/java/io/jare/dynamo/DyBase.java
+++ b/src/main/java/io/jare/dynamo/DyBase.java
@@ -34,6 +34,8 @@
 import io.jare.model.User;
 import java.util.Locale;
 import java.util.stream.Collectors;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * Dynamo Base.
@@ -43,6 +45,8 @@
  * @since 1.0
  * @checkstyle MultipleStringLiteralsCheck (500 lines)
  */
+@ToString
+@EqualsAndHashCode(of = "region")
 public final class DyBase implements Base {
 
     /**
diff --git a/src/main/java/io/jare/dynamo/DyDomain.java b/src/main/java/io/jare/dynamo/DyDomain.java
index 838d4a5..943816d 100644
--- a/src/main/java/io/jare/dynamo/DyDomain.java
+++ b/src/main/java/io/jare/dynamo/DyDomain.java
@@ -27,6 +27,8 @@
 import io.jare.model.Domain;
 import io.jare.model.Usage;
 import java.io.IOException;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * Dynamo domain.
@@ -36,6 +38,8 @@
  * @since 1.0
  * @checkstyle MultipleStringLiteralsCheck (500 lines)
  */
+@ToString
+@EqualsAndHashCode(of = "item")
 public final class DyDomain implements Domain {
 
     /**
diff --git a/src/main/java/io/jare/dynamo/DyUsage.java b/src/main/java/io/jare/dynamo/DyUsage.java
index 7f97611..d90fc31 100644
--- a/src/main/java/io/jare/dynamo/DyUsage.java
+++ b/src/main/java/io/jare/dynamo/DyUsage.java
@@ -40,6 +40,8 @@
 import java.util.SortedMap;
 import java.util.TimeZone;
 import java.util.TreeMap;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 import org.apache.commons.lang3.time.DateUtils;
 import org.w3c.dom.Node;
 import org.xembly.Directives;
@@ -53,6 +55,8 @@
  * @since 0.7
  * @checkstyle MultipleStringLiteralsCheck (500 lines)
  */
+@ToString
+@EqualsAndHashCode(of = "item")
 @SuppressWarnings("PMD.AvoidDuplicateLiterals")
 public final class DyUsage implements Usage {
 
diff --git a/src/main/java/io/jare/dynamo/DyUser.java b/src/main/java/io/jare/dynamo/DyUser.java
index a8c84b4..9808eb4 100644
--- a/src/main/java/io/jare/dynamo/DyUser.java
+++ b/src/main/java/io/jare/dynamo/DyUser.java
@@ -35,6 +35,8 @@
 import java.util.Iterator;
 import java.util.Locale;
 import java.util.stream.Collectors;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
 /**
  * Dynamo user.
@@ -44,6 +46,8 @@
  * @since 1.0
  * @checkstyle MultipleStringLiteralsCheck (500 lines)
  */
+@ToString
+@EqualsAndHashCode(of = { "region", "handle" })
 public final class DyUser implements User {
 
     /**