diff --git a/README.md b/README.md
index 1b87b7e..704026a 100644
--- a/README.md
+++ b/README.md
@@ -290,6 +290,7 @@ php7.3-fpm.pid  php7.3-fpm.sock
 ```
 
 对应Nginx配置如下
+
 ```
 # RH系
 fastcgi_pass 127.0.0.1:9000;
@@ -303,9 +304,16 @@ fastcgi_pass unix:/var/run/php/php7.3-fpm.sock;
 shell> nginx -s reload
 ```
 
+测试服务是否正常工作
+
+```
+shell> curl 127.0.0.1:1689/win
+···不同版本Windows的KMS密钥···
+```
+
 **4. 配置vlmcsd服务**
 
-在vlmcsd的[Github页面](https://github.com/Wind4/vlmcsd/releases)获取最新release包
+在vlmcsd的[Github页面](https://github.com/Wind4/vlmcsd/releases)获取最新release包。
 
 ```
 # 下载最新release并解压
@@ -361,7 +369,19 @@ Active: active (running) ···
 ···
 ```
 
-## 容器构建
+## 开发相关
+
+### JSON接口
+
+`kms-server` 预留了以下JSON接口，用于输出内置的KMS密钥。
+
++ `/win/json`：输出各版本Windows的KMS密钥；
+
++ `/win-server/json`：输出各版本Windows Server的KMS密钥；
+
++ `/json`：输出各版本Windows和Windows Server的KMS密钥；
+
+### 容器构建
 
 **本地构建**
 
diff --git a/backend/kms-office.php b/backend/kms-office.php
index 63fd437..bc619b8 100644
--- a/backend/kms-office.php
+++ b/backend/kms-office.php
@@ -17,7 +17,7 @@ if exist "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" cd /d "%Progra
 cscript ospp.vbs /inpkey:NMMKJ-6RK4F-KMJVX-8D9MJ-6MWKP';
 
 function loadOsppInfo() { // 初始化ospp信息
-    global $webSite;
+    global $kmsHost;
     global $osppOption, $osppDescription, $osppDescriptionCn;
 
     $osppOption[] = '/dstatus';
@@ -36,7 +36,7 @@ function loadOsppInfo() { // 初始化ospp信息
     $osppDescription[] = 'Installs a product key with a user-provided product key.';
     $osppDescriptionCn[] = '安装产品密钥';
 
-    $osppOption[] = '/sethst:' . $webSite;
+    $osppOption[] = '/sethst:' . $kmsHost;
     $osppDescription[] = 'Sets a KMS host name with a user-provided host name.';
     $osppDescriptionCn[] = '设置 KMS 主机名';
 
@@ -50,8 +50,8 @@ function loadOsppInfo() { // 初始化ospp信息
 }
 
 function loadOfficeCmd() { // 初始化Office激活命令
-    global $webSite, $office;
-    $activeCmd = 'cscript ospp.vbs /sethst:' . $webSite . PHP_EOL . 'cscript ospp.vbs /act';
+    global $kmsHost, $office;
+    $activeCmd = 'cscript ospp.vbs /sethst:' . $kmsHost . PHP_EOL . 'cscript ospp.vbs /act';
     $activeCmd .= PHP_EOL . 'cscript ospp.vbs /dstatus' . PHP_EOL;
     foreach ($office as $index => $officeKmsCmd) {
         $office[$index] .= PHP_EOL . $activeCmd;
diff --git a/backend/route.php b/backend/route.php
index fc62438..19a54c2 100644
--- a/backend/route.php
+++ b/backend/route.php
@@ -5,11 +5,30 @@ include 'kms-web.php';
 include 'kms-help.php';
 include 'kms-office.php';
 
-$webSite = "{KMS_HOST}";
-if (isset($_SERVER['HTTP_HOST'])) { // 获取服务域名
-    preg_match('#^127.0.0.1#', $_SERVER['HTTP_HOST'], $match); // 排除127.0.0.1下的host
-    if (count($match) == 0) {
-        $webSite = $_SERVER['HTTP_HOST'];
+function isDomain($domain) {
+    preg_match('/^(?=^.{3,255}$)[a-zA-Z0-9][-a-zA-Z0-9]{0,62}(\.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+$/', $domain, $match);
+    return (count($match) != 0);
+}
+
+function isIPv4($ip) {
+    return filter_var($ip, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV4);
+}
+
+$kmsHost = "{KMS_HOST}";
+$webSite = $kmsHost;
+if (isset($_SERVER['HTTP_HOST'])) { // 获取服务URL
+    $webSite = $_SERVER['HTTP_HOST'];
+}
+if (isDomain($webSite) || isIPv4($webSite)) { // URL为域名或者IPv4地址
+    $kmsHost = $webSite;
+} else {
+    preg_match('/^[a-zA-Z0-9.-]*/', $webSite, $match);
+    if (count($match) != 0) {
+        if (isDomain($match[0]) || isIPv4($match[0])) { // 去除端口后为域名或者IPv4地址
+            if ($match[0] != '127.0.0.1') { // 排除本地IP
+                $kmsHost = $match[0];
+            }
+        }
     }
 }