diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70e8f9d..5de2b94 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # 更新日志
 
+## v4.0.9
+*2024.2.9*
+- 由于 `.tk` 域名被 ICANN 暂停，切换至 guyutongxue.site 域名。
+
 ## v4.0.8
 *2023.8.24*
 - 修复了 Console Pauser 启动工作路径不正确的问题
diff --git a/README.md b/README.md
index eb27542..dfd718c 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ winget install Guyutongxue.Vscch
 
 ## 文档
 
-请看[官网](https://v4.vscch.tk/docs)。
+请看[官网](https://vscch.guyutongxue.site/docs)。
 
 ## 开发
 
diff --git a/docs/CNAME b/docs/CNAME
index 57567e4..b7cd1bd 100644
--- a/docs/CNAME
+++ b/docs/CNAME
@@ -1 +1 @@
-v4.vscch.tk
\ No newline at end of file
+vscch.guyutongxue.site
diff --git a/docs/docs/linux.md b/docs/docs/linux.md
index bfd415f..7bfb7cf 100644
--- a/docs/docs/linux.md
+++ b/docs/docs/linux.md
@@ -26,7 +26,7 @@
 
 ## 第二步：获取本软件
 
-直接在[网站首页](https://v4.vscch.tk/)下载即可。Linux 版共有两种下载：
+直接在[网站首页](https://vscch.guyutongxue.site/)下载即可。Linux 版共有两种下载：
 1. （默认）AppImage。体积较大，但保证可以在各大发行版运行。
 2. 可执行文件。体积较小，但可能需要外部链接库才能正常运行。
 
diff --git a/docs/docs/macos.md b/docs/docs/macos.md
index c995a67..a8c6a1a 100644
--- a/docs/docs/macos.md
+++ b/docs/docs/macos.md
@@ -11,7 +11,7 @@
 
 ## 第二步：获取本软件
 
-直接在[网站首页](https://v4.vscch.tk/)下载即可。macOS 版共有两种下载：
+直接在[网站首页](https://vscch.guyutongxue.site/)下载即可。macOS 版共有两种下载：
 1. （默认）.dmg 映像文件，内含 .app 打包应用程序。总是建议你使用该版本。
 2. 可执行文件。需要手动赋予可执行权限、并在安全策略允许后才可运行。
 
diff --git a/docs/docs/windows.md b/docs/docs/windows.md
index be29936..8860ff3 100644
--- a/docs/docs/windows.md
+++ b/docs/docs/windows.md
@@ -15,7 +15,7 @@
 
 ## 第二步：获取本软件
 
-直接在[网站首页](https://v4.vscch.tk/)下载即可。Windows 版共有两种下载：
+直接在[网站首页](https://vscch.guyutongxue.site/)下载即可。Windows 版共有两种下载：
 
 - （默认）可执行文件（.exe）。该版本体积小，且操作方便；但可能需要你手动安装 WebView 2。
 - 安装器（.msi）。该版本下载后需要首先运行安装器（此时会自动安装 WebView 2 等相关依赖库）才可运行。如果你希望长期使用本软件，你可以下载安装器安装。
diff --git a/docs/docs/wsl.md b/docs/docs/wsl.md
index 8256ff8..d617817 100644
--- a/docs/docs/wsl.md
+++ b/docs/docs/wsl.md
@@ -6,7 +6,7 @@
 
 ## Step 1：下载程序
 
-请在[网站下载处](https://v4.vscch.tk/#download)点击 Linux 版 - 可执行文件。AppImage 不好使。
+请在[网站下载处](https://vscch.guyutongxue.site/#download)点击 Linux 版 - 可执行文件。AppImage 不好使。
 
 ## Step 2：安装中文字体
 
diff --git a/docs/index.html b/docs/index.html
index b768715..ead9345 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -369,15 +369,15 @@ <h3 class="mb-3" id="download">下载</h3>
         downloadType = "appImage";
       }
       function withProxy(/** @type {string} */ url) {
-        const proxyUrl = new URL("https://v4.vscch.tk/proxy");
+        const proxyUrl = new URL("https://api.guyutongxue.site/proxy");
         proxyUrl.searchParams.append("target", url);
         return proxyUrl.href;
       }
       const DOWNLOAD_LINKS = {};
       Promise.all(
         [
-          `//v4.vscch.tk/api/installer`,
-          `//v4.vscch.tk/api/portable`,
+          `//api.guyutongxue.site/vscch/installer`,
+          `//api.guyutongxue.site/vscch/portable`,
         ].map((url) => fetch(url).then((r) => r.json()))
       ).then(([i, p]) => {
         DOWNLOAD_LINKS.msi = i.platforms.win64.url;
diff --git a/src-tauri/src/steps/compiler/mingw.rs b/src-tauri/src/steps/compiler/mingw.rs
index 32535d1..e95bee5 100644
--- a/src-tauri/src/steps/compiler/mingw.rs
+++ b/src-tauri/src/steps/compiler/mingw.rs
@@ -91,12 +91,12 @@ fn verify(
 }
 
 fn install_gcc() -> Result<()> {
-  open::that("https://v4.vscch.tk/api/mingw")?;
+  open::that("https://api.guyutongxue.site/vscch/mingw")?;
   Ok(())
 }
 
 fn install_clang() -> Result<()> {
-  open::that("https://v4.vscch.tk/api/llvm-mingw")?;
+  open::that("https://api.guyutongxue.site/vscch/llvm-mingw")?;
   Ok(())
 }
 
diff --git a/src-tauri/src/steps/compiler/msvc.rs b/src-tauri/src/steps/compiler/msvc.rs
index df24c63..4940260 100644
--- a/src-tauri/src/steps/compiler/msvc.rs
+++ b/src-tauri/src/steps/compiler/msvc.rs
@@ -36,7 +36,7 @@ use windows::Win32::UI::Shell::{
 
 static POWERSHELL: &str = "C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe";
 static VSWHERE_DOWNLOAD_LINK: &str =
-  "http://v4.vscch.tk/proxy/?target=https%3A%2F%2Fgithub.com%2Fmicrosoft%2Fvswhere%2Freleases%2Fdownload%2F3.0.3%2Fvswhere.exe";
+  "http://api.guyutongxue.site/proxy/?target=https%3A%2F%2Fgithub.com%2Fmicrosoft%2Fvswhere%2Freleases%2Fdownload%2F3.0.3%2Fvswhere.exe";
 
 fn get_vswhere() -> Option<PathBuf> {
   let choco_path = get_known_folder_path(&FOLDERID_ProgramData)
diff --git a/src-tauri/src/tasks/statistics.rs b/src-tauri/src/tasks/statistics.rs
index 39c809f..baeb1ac 100644
--- a/src-tauri/src/tasks/statistics.rs
+++ b/src-tauri/src/tasks/statistics.rs
@@ -74,7 +74,7 @@ pub fn send_error(e: &Error) -> Option<u64> {
     id %= 1_000_000;
     warn!("发送错误日志。标识码 {}", id);
     let res = reqwest::blocking::Client::new()
-      .post(format!("https://v4.vscch.tk/api/errorLog/{}", id))
+      .post(format!("https://api.guyutongxue.site/vscch/errorLog/{}", id))
       .header(CONTENT_TYPE, "text/plain")
       .body(fs::read_to_string(get_log_path())?)
       .send()?;
diff --git a/src/App.svelte b/src/App.svelte
index 551b5b0..2f3d8da 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -119,13 +119,13 @@
   let checkUpdateString = "检查更新";
   async function checkUpdate() {
     checkUpdateString = "检查更新中...";
-    const result = await fetch(`https://v4.vscch.tk/api/installer`).then((r) =>
+    const result = await fetch(`https://api.guyutongxue.site/vscch/installer`).then((r) =>
       r.json()
     );
     const latestVersion: string = result.name;
     if (compareVersions(latestVersion, version) > 0) {
       if (await confirm(`新版本 ${latestVersion} 可用。是否前往下载？`)) {
-        open(`https://v4.vscch.tk`);
+        open(`https://vscch.guyutongxue.site`);
       }
     } else {
       alert(`已是最新版本（${latestVersion}）。`);