diff --git a/httpdns_android_demo/build.gradle b/httpdns_android_demo/build.gradle
index a9a5c3b..7cd7a2b 100644
--- a/httpdns_android_demo/build.gradle
+++ b/httpdns_android_demo/build.gradle
@@ -38,7 +38,7 @@ android {
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
 
-    implementation "com.aliyun.ams:alicloud-android-httpdns:2.4.3"
+    implementation "com.aliyun.ams:alicloud-android-httpdns:2.5.0"
 
     implementation 'androidx.core:core-ktx:1.7.0'
     implementation 'androidx.appcompat:appcompat:1.6.1'
diff --git a/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/exoplayer/ExoPlayerCaseViewModel.kt b/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/exoplayer/ExoPlayerCaseViewModel.kt
index 06f0e3e..fc7b20a 100644
--- a/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/exoplayer/ExoPlayerCaseViewModel.kt
+++ b/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/exoplayer/ExoPlayerCaseViewModel.kt
@@ -23,7 +23,7 @@ class ExoPlayerCaseViewModel(application: Application) : ResolveResultViewModel(
     lateinit var okHttpClient: OkHttpClient
 
     val playerUrl = SingleLiveData<String>().apply {
-        value = "https://storage.googleapis.com/wvmedia/clear/h264/tears/tears.mpd"
+        value = "https://ams-sdk-public-assets.oss-cn-hangzhou.aliyuncs.com/file_example_MP4_640_3MG.mp4"
     }
 
     val showRequestAndResolveResult = SingleLiveData<Boolean>().apply { value = false }
diff --git a/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/ipconn/IPConnCaseViewModel.kt b/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/ipconn/IPConnCaseViewModel.kt
index 59943d6..23ffb13 100644
--- a/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/ipconn/IPConnCaseViewModel.kt
+++ b/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/ipconn/IPConnCaseViewModel.kt
@@ -36,7 +36,7 @@ class IPConnCaseViewModel(application: Application) : ResolveResultViewModel(app
     val responseStr = SingleLiveData<String>().apply { value = "" }
 
     val ipConnUrl = SingleLiveData<String>().apply {
-        value = "https://suggest.taobao.com/sug?code=utf-8&q=phone"
+        value = "https://ams-sdk-public-assets.oss-cn-hangzhou.aliyuncs.com/example-resources.txt"
     }
 
     val showRequestAndResolveResult = SingleLiveData<Boolean>().apply { value = false }
diff --git a/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/okhttp/OkHttpCaseViewModel.kt b/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/okhttp/OkHttpCaseViewModel.kt
index 732b068..b7b9db9 100644
--- a/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/okhttp/OkHttpCaseViewModel.kt
+++ b/httpdns_android_demo/src/main/java/com/alibaba/httpdns/android/demo/practice/okhttp/OkHttpCaseViewModel.kt
@@ -29,7 +29,7 @@ class OkHttpCaseViewModel(application: Application) : ResolveResultViewModel(app
 
     private var schemaType: SchemaType = SchemaType.HTTPS
 
-    val path = SingleLiveData<String>().apply { value = "/document_detail/434554.html" }
+    val path = SingleLiveData<String>().apply { value = "/example-resources.txt" }
 
     val showRequestAndResolveResult = SingleLiveData<Boolean>().apply { value = false }
 
@@ -39,7 +39,7 @@ class OkHttpCaseViewModel(application: Application) : ResolveResultViewModel(app
 
     private var response: Response? = null
     fun initData() {
-        host.value = "help.aliyun.com"
+        host.value = "ams-sdk-public-assets.oss-cn-hangzhou.aliyuncs.com"
         okHttpClient = OkHttpClient.Builder()
             .connectionPool(ConnectionPool(0, 10 * 1000, TimeUnit.MICROSECONDS))
             .hostnameVerifier { _, _ -> true }
@@ -59,13 +59,14 @@ class OkHttpCaseViewModel(application: Application) : ResolveResultViewModel(app
                             )
                         )
                     }
+
                     if (inetAddresses.isEmpty()) {
                         log(
                             this@OkHttpCaseViewModel,
                             getApplication<HttpDnsApplication>().getString(R.string.log_dns_resolve_fail)
                         )
                         try {
-                            val localResolveResult = Dns.SYSTEM.lookup("help.aliyun111.com")
+                            val localResolveResult = Dns.SYSTEM.lookup(hostname)
                             inetAddresses.addAll(localResolveResult)
                         }catch (e: Exception) {
                             log(
@@ -125,7 +126,6 @@ class OkHttpCaseViewModel(application: Application) : ResolveResultViewModel(app
                     response = Response(code, bodyStr)
                 }
             }
-
         }
     }
 
diff --git a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_exo_player_case.xml b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_exo_player_case.xml
index baf1958..4a46171 100644
--- a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_exo_player_case.xml
+++ b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_exo_player_case.xml
@@ -93,8 +93,7 @@
                     android:layout_height="wrap_content"
                     android:text="@{viewModel.hostAndTime}"
                     android:textColor="#3D3D3D"
-                    android:textSize="12sp"
-                    tools:text="www.aliyun.com (38ms)" />
+                    android:textSize="12sp"/>
 
                 <TextView
                     android:id="@+id/tvTtl"
diff --git a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_ip_conn_case.xml b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_ip_conn_case.xml
index eaec8e8..3b34ba8 100644
--- a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_ip_conn_case.xml
+++ b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_ip_conn_case.xml
@@ -127,7 +127,6 @@
                         android:id="@+id/tvHostAndTime"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        tools:text="www.aliyun.com (38ms)"
                         android:text="@{viewModel.hostAndTime}"
                         android:textSize="12sp"
                         android:textColor="#3D3D3D"/>
diff --git a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_okhttp_case.xml b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_okhttp_case.xml
index a3ec94b..c17626f 100644
--- a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_okhttp_case.xml
+++ b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_okhttp_case.xml
@@ -188,7 +188,6 @@
                         android:id="@+id/tvHostAndTime"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        tools:text="www.aliyun.com (38ms)"
                         android:text="@{viewModel.hostAndTime}"
                         android:textSize="12sp"
                         android:textColor="#3D3D3D"/>
diff --git a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_resolve_result.xml b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_resolve_result.xml
index 5cc2ca6..e907a5b 100644
--- a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_resolve_result.xml
+++ b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_resolve_result.xml
@@ -219,7 +219,6 @@
                     android:id="@+id/tvHostAndTime"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    tools:text="www.aliyun.com (38ms)"
                     android:text="@{viewModel.hostAndTime}"
                     android:textSize="12sp"
                     android:textColor="#3D3D3D"/>
diff --git a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_webview_case.xml b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_webview_case.xml
index d55de38..1a25988 100644
--- a/httpdns_android_demo/src/main/res/layout/httpdns_fragment_webview_case.xml
+++ b/httpdns_android_demo/src/main/res/layout/httpdns_fragment_webview_case.xml
@@ -46,7 +46,7 @@
                     android:layout_height="wrap_content"
                     android:paddingStart="2dp"
                     android:paddingEnd="2dp"
-                    android:text="@string/url_aliyun" />
+                    android:text="@string/url_web_example" />
 
             </com.google.android.material.textfield.TextInputLayout>
 
@@ -123,8 +123,7 @@
                     android:layout_height="wrap_content"
                     android:text="@{viewModel.hostAndTime}"
                     android:textColor="#3D3D3D"
-                    android:textSize="12sp"
-                    tools:text="www.aliyun.com (38ms)" />
+                    android:textSize="12sp"/>
 
                 <TextView
                     android:id="@+id/tvTtl"
diff --git a/httpdns_android_demo/src/main/res/values/strings.xml b/httpdns_android_demo/src/main/res/values/strings.xml
index b717fc1..4815b9a 100644
--- a/httpdns_android_demo/src/main/res/values/strings.xml
+++ b/httpdns_android_demo/src/main/res/values/strings.xml
@@ -14,9 +14,9 @@
     <string name="pre_resolve_host_duplicate">%s域名已经被添加至预解析列表，请勿重复添加</string>
 
     <string name="input_the_resolve_host">要解析的域名</string>
-    <string name="input_the_resolve_host_help_text">例如：help.aliyun.com</string>
+    <string name="input_the_resolve_host_help_text">例如：ams-sdk-public-assets.oss-cn-hangzhou.aliyuncs.com</string>
     <string name="input_the_request_api">要请求的接口</string>
-    <string name="input_the_request_api_help_text">例如: /document_detail/434554.html</string>
+    <string name="input_the_request_api_help_text">例如: /example-resources.txt</string>
     <string name="resolve_and_request">解析并请求</string>
     <string name="resolve_host_empty">域名不能为空</string>
     <string name="host_is_ip">域名不能是IP地址</string>
@@ -107,8 +107,8 @@
     <string name="ip_conn_case">HTTPDNS\nIP直连\n最佳实践</string>
     <string name="exo_player_case">HTTPDNS\nExoPlayer\n最佳实践</string>
     <string name="log_dns_resolve_fail">httpdns 未返回IP，走local dns</string>
-    <string name="log_resolve_result">httpdns %s 解析结果 %s</string>
     <string name="log_host_cannnot_resolve">host:%s 解析失败</string>
+    <string name="log_resolve_result">httpdns %s 解析结果 %s</string>
     <string name="log_sni_request_error">SNI request error: %s</string>
     <string name="log_sni_request_response">SNI request response: %s</string>
     <string name="log_okhttp_request_url">requestUrl: %s</string>
@@ -117,12 +117,12 @@
     <string name="toast_double_click_exit">再按一次退出应用</string>
     <string name="toast_input_content_null">输入内容为空</string>
     <string name="input_url">url输入</string>
-    <string name="input_url_example">例如: http://www.aliyun.com</string>
-    <string name="url_aliyun">https://help.aliyun.com</string>
+    <string name="input_url_example">例如: https://ams-sdk-public-assets.oss-cn-hangzhou.aliyuncs.com/example-resources.txt</string>
+    <string name="url_web_example">https://ams-sdk-public-assets.oss-cn-hangzhou.aliyuncs.com/example-resources.txt</string>
     <string name="load_url">加载URL</string>
     <string name="toast_url_empty">url is empty</string>
     <string name="toast_url_mistake">请输入正确的url</string>
     <string name="player_url">播放资源URL输入</string>
-    <string name="player_url_example">例如: https://storage.googleapis.com/wvmedia/clear/h264/tears/tears.mpd</string>
+    <string name="player_url_example">例如: https://ams-sdk-public-assets.oss-cn-hangzhou.aliyuncs.com/file_example_MP4_640_3MG.mp4</string>
     <string name="play">播放</string>
 </resources>