diff --git a/FastGithub/appsettings.json b/FastGithub/appsettings.json
index f2b148c..c768681 100644
--- a/FastGithub/appsettings.json
+++ b/FastGithub/appsettings.json
@@ -1,9 +1,40 @@
 {
   "Dns": {
-    "UpStream": "114.114.114.114",
-    "GithubTTL": "00:10:00"
+    "UpStream": "114.114.114.114", // 上游dns
+    "GithubTTL": "00:10:00" // github相关域名解析结果的存活时长
   },
   "Github": {
+    "Lookup": { // ip查找
+      "Domains": [ // 查找的域名，下面是github主最要的域名
+        "github.com",
+        "api.github.com",
+        "collector.githubapp.com",
+        "github.githubassets.com",
+        "raw.githubusercontent.com",
+        "avatars.githubusercontent.com",
+        "favicons.githubusercontent.com"
+      ],
+      "IPAddressComProvider": {
+        "Enable": true // 是从启用从address.com查找ip
+      },
+      "GithubMetaProvider": {
+        "Enable": true, // 是否从github获取ip列表
+        "MetaUri": "https://gitee.com/jiulang/fast-github/raw/master/FastGithub/meta.json"
+      },
+      "PublicDnsProvider": {
+        "Enable": true, // 是否需要从dns服务器查找ip
+        "Dnss": [ // dns服务器列表
+          "1.2.4.8",
+          "8.8.8.8",
+          "223.5.5.5",
+          "123.125.81.6",
+          "180.76.76.76",
+          "119.29.29.29",
+          "208.67.220.220",
+          "114.114.114.114"
+        ]
+      }
+    },
     "Scan": {
       "FullScanInterval": "02:00:00", // 完整扫描时间间隔
       "ResultScanInterval": "00:01:00", // 结果扫描时间间隔
@@ -13,55 +44,30 @@
       },
       "HttpsScan": {
         "Timeout": "00:00:05", // https扫描超时时间
-        "ConnectionClose": false, // 是否使用短连接
-        "Rules": {
+        "ConnectionClose": false, // 是否使用https短连接
+        "Rules": { // 域名扫描规则，缺失的域名，将默认HEAD请求到域名的根路径
           "github.com": {
+            "Method": "HEAD",
             "Path": "/xljiulang/FastGithub"
           },
           "github.githubassets.com": {
             "Method": "HEAD",
             "Path": "/favicons/favicon.png"
           },
+          "raw.githubusercontent.com": {
+            "Method": "HEAD",
+            "Path": "/xljiulang/FastGithub/master/README.md"
+          },
           "avatars.githubusercontent.com": {
             "Method": "HEAD",
             "Path": "/u/8308014?s=40&v=4"
           },
-          "raw.githubusercontent.com": {
+          "favicons.githubusercontent.com": {
             "Method": "HEAD",
-            "Path": "/xljiulang/FastGithub/master/README.md"
+            "Path": "/github.com"
           }
         }
       }
-    },
-    "Lookup": {
-      "Domains": [
-        "github.com",
-        "api.github.com",
-        "collector.githubapp.com",
-        "github.githubassets.com",
-        "raw.githubusercontent.com",
-        "avatars.githubusercontent.com"
-      ],
-      "IPAddressComProvider": {
-        "Enable": true
-      },
-      "GithubMetaProvider": {
-        "Enable": true,
-        "MetaUri": "https://gitee.com/jiulang/fast-github/raw/master/FastGithub/meta.json"
-      },
-      "PublicDnsProvider": {
-        "Enable": true,
-        "Dnss": [
-          "8.8.8.8",
-          "114.114.114.114",
-          "180.76.76.76",
-          "119.29.29.29",
-          "223.5.5.5",
-          "1.2.4.8",
-          "208.67.220.220",
-          "123.125.81.6"
-        ]
-      }
     }
   },
   "Logging": {