diff --git a/dns/alidns.py b/dns/alidns.py
index af8c2b8..23dd815 100644
--- a/dns/alidns.py
+++ b/dns/alidns.py
@@ -29,8 +29,12 @@ __author__ = 'New Future'
 ID = "id"
 TOKEN = "TOKEN"
 PROXY = None  # 代理设置
-API_SITE = "alidns.aliyuncs.com"
-API_METHOD = "POST"
+
+
+class API:
+    # API 配置
+    SITE = "alidns.aliyuncs.com"  # API endpoint
+    METHOD = "POST"  # 请求方法
 
 
 def signature(params):
@@ -48,7 +52,7 @@ def signature(params):
     })
     query = urlencode(sorted(params.items()))
     debug(query)
-    sign = API_METHOD + "&" + quote_plus("/") + "&" + quote(query, safe='')
+    sign = API.METHOD + "&" + quote_plus("/") + "&" + quote(query, safe='')
     debug("signString: %s", sign)
 
     sign = hmac((TOKEN + "&").encode('utf-8'),
@@ -65,15 +69,14 @@ def request(param=None, **params):
     if param:
         params.update(param)
     params = signature(params)
-    debug("params:%s", params)
+    info("%s: %s", API.SITE, params)
 
     if PROXY:
         conn = HTTPSConnection(PROXY)
-        conn.set_tunnel(API_SITE, 443)
+        conn.set_tunnel(API.SITE, 443)
     else:
-        conn = HTTPSConnection(API_SITE)
-
-    conn.request(API_METHOD, '/', urlencode(params),
+        conn = HTTPSConnection(API.SITE)
+    conn.request(API.METHOD, '/', urlencode(params),
                  {"Content-type": "application/x-www-form-urlencoded"})
     response = conn.getresponse()
     data = response.read()
diff --git a/dns/cloudflare.py b/dns/cloudflare.py
index b8d805f..411f139 100644
--- a/dns/cloudflare.py
+++ b/dns/cloudflare.py
@@ -23,7 +23,11 @@ __author__ = 'TongYifan'
 ID = "AUTH EMAIL"  # CloudFlare 验证的是用户Email，等同于其他平台的userID
 TOKEN = "API KEY"
 PROXY = None  # 代理设置
-API_SITE = "api.cloudflare.com"
+
+
+class API:
+    # API 配置
+    SITE = "api.cloudflare.com"  # API endpoint
 
 
 def request(method, action, param=None, **params):
@@ -33,12 +37,12 @@ def request(method, action, param=None, **params):
     if param:
         params.update(param)
 
-    info("$s %s : params:%s", action, params)
+    info("%s/%s : %s", API.SITE, action, params)
     if PROXY:
         conn = HTTPSConnection(PROXY)
-        conn.set_tunnel(API_SITE, 443)
+        conn.set_tunnel(API.SITE, 443)
     else:
-        conn = HTTPSConnection(API_SITE)
+        conn = HTTPSConnection(API.SITE)
 
     if method in ['PUT', 'POST', 'PATCH']:
         # 从public_v(4,6)获取的IP是bytes类型，在json.dumps时会报TypeError
diff --git a/dns/dnscom.py b/dns/dnscom.py
index 1db4351..86fcbd0 100644
--- a/dns/dnscom.py
+++ b/dns/dnscom.py
@@ -23,15 +23,18 @@ except ImportError:
     from urllib.parse import urlencode
 
 
-
 __author__ = 'Bigjin'
 # __all__ = ["request", "ID", "TOKEN", "PROXY"]
 
 ID = "id"
 TOKEN = "TOKEN"
 PROXY = None  # 代理设置
-API_SITE = "www.dns.com"
-API_METHOD = "POST"
+
+
+class API:
+    # API 配置
+    SITE = "www.dns.com"  # API endpoint
+    METHOD = "POST"  # 请求方法
 
 
 def signature(params):
@@ -60,15 +63,15 @@ def request(action, param=None, **params):
     if param:
         params.update(param)
     params = signature(params)
-    info("%s : params:%s", action, params)
+    info("%s/api/%s/ : params:%s", API.SITE, action, params)
 
     if PROXY:
         conn = HTTPSConnection(PROXY)
-        conn.set_tunnel(API_SITE, 443)
+        conn.set_tunnel(API.SITE, 443)
     else:
-        conn = HTTPSConnection(API_SITE)
+        conn = HTTPSConnection(API.SITE)
 
-    conn.request(API_METHOD, '/api/' + action + '/', urlencode(params),
+    conn.request(API.METHOD, '/api/' + action + '/', urlencode(params),
                  {"Content-type": "application/x-www-form-urlencoded"})
     response = conn.getresponse()
     result = response.read()
diff --git a/dns/dnspod.py b/dns/dnspod.py
index ce5cff3..dfc091c 100644
--- a/dns/dnspod.py
+++ b/dns/dnspod.py
@@ -42,7 +42,7 @@ def request(action, param=None, **params):
         params.update(param)
 
     params.update({API.TOKEN_PARAM: '***', 'format': 'json'})
-    info("%s : params:%s", action, params)
+    info("%s/%s : %s", API.SITE, action, params)
     params[API.TOKEN_PARAM] = "%s,%s" % (ID, TOKEN)
 
     if PROXY: