diff --git a/.github/workflows/cos.yaml b/.github/workflows/cos.yaml
index 8b8b5bc..fe5dd1b 100644
--- a/.github/workflows/cos.yaml
+++ b/.github/workflows/cos.yaml
@@ -11,17 +11,19 @@ jobs:
         
     steps:
     - name: checkout
-      uses: actions/checkout@master
-
-    - name: install dependencies
-      run: |
-        sudo pip install coscmd
-        sudo pip install tccli
-        npm i
+      uses: actions/checkout@v3
+      
+    - name: install doc dependencies
+      run: sudo npm i
     
     - name: build
       run: |
         npm run docs:build
+    
+    - name: install coscmd and tccli
+      run: |
+        sudo pip3 install coscmd
+        sudo pip3 install tccli
 
     - name: confirgure coscmd and tccli
       env:
@@ -38,4 +40,4 @@ jobs:
     - name: upload and refresh cdn
       run: |
         coscmd upload -rfs --delete ./.vitepress/dist/ /
-        tccli cdn PurgePathCache --cli-unfold-argument --Paths https://wiki.xyxsw.site/ --FlushType flush
\ No newline at end of file
+        tccli cdn PurgePathCache --cli-unfold-argument --Paths https://wiki.xyxsw.site/ --FlushType flush
diff --git a/.github/workflows/link-pr.yaml b/.github/workflows/link-pr.yaml
new file mode 100644
index 0000000..54efb3e
--- /dev/null
+++ b/.github/workflows/link-pr.yaml
@@ -0,0 +1,40 @@
+name: links when pr
+
+on:
+  pull_request:
+    branches: [ master ]
+    paths:
+      - '**.md'
+      - '.lycheeignore'
+
+jobs:
+  linkChecker:
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout
+      uses: actions/checkout@v3
+
+    - name: install doc dependencies
+      run: sudo npm i
+
+    - name: build
+      run: |
+        npm run docs:build
+
+    - name: Link Checker
+      uses: lycheeverse/lychee-action@v1.8.0
+      with:
+        fail: true
+          # For parameter description, see https://github.com/lycheeverse/lychee#commandline-parameters
+          # -E, --exclude-all-private    Exclude all private IPs from checking.
+          # -i, --insecure               Proceed for server connections considered insecure (invalid TLS)
+          # -n, --no-progress            Do not show progress bar.
+          # -t, --timeout <timeout>      Website timeout in seconds from connect to response finished [default:20]
+          # --max-concurrency <max-concurrency>    Maximum number of concurrent network requests [default: 128]
+          # -a --accept <accept>                      Comma-separated list of accepted status codes for valid links
+
+          # .vitepress/dist the site directory to check
+          # *.md all markdown files in the root directory
+        args: -E -i -n -t 45 --max-concurrency 64 -a 401,403 -- '.vitepress/dist' '*.md'
+      env:
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
diff --git a/.github/workflows/link-schedule.yaml b/.github/workflows/link-schedule.yaml
new file mode 100644
index 0000000..ea6cabd
--- /dev/null
+++ b/.github/workflows/link-schedule.yaml
@@ -0,0 +1,45 @@
+name: links
+
+on:
+  # repository_dispatch:
+  workflow_dispatch:
+  schedule:
+    - cron: "30 8 * * *"
+
+jobs:
+  linkChecker:
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout
+      uses: actions/checkout@v3
+
+    - name: install doc dependencies
+      run: sudo npm i
+
+    - name: build
+      run: |
+        npm run docs:build
+
+    - name: Link Checker
+      uses: lycheeverse/lychee-action@v1.8.0
+      with:
+          # For parameter description, see https://github.com/lycheeverse/lychee#commandline-parameters
+          # -E, --exclude-all-private    Exclude all private IPs from checking.
+          # -i, --insecure               Proceed for server connections considered insecure (invalid TLS)
+          # -n, --no-progress            Do not show progress bar.
+          # -t, --timeout <timeout>      Website timeout in seconds from connect to response finished [default:20]
+          # --max-concurrency <max-concurrency>    Maximum number of concurrent network requests [default: 128]
+          # -a --accept <accept>                      Comma-separated list of accepted status codes for valid links
+
+          # .vitepress/dist the site directory to check
+        # *.md all markdown files in the root directory
+        args: -E -i -n -t 45 --max-concurrency 64 -a 401,403 -- '.vitepress/dist' '*.md'
+        output: out.md
+      env:
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+    - name: Create Issue From File
+      uses: peter-evans/create-issue-from-file@v3
+      with:
+        title: Broken Link Detected
+        content-filepath: out.md
+        assignees: nightwhite
diff --git a/.gitignore b/.gitignore
index 03d85d5..8040e26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 node_modules
 dist
 cache
-.temp
\ No newline at end of file
+.temp
+.vitepress/dist
diff --git a/.lycheeignore b/.lycheeignore
new file mode 100644
index 0000000..e483565
--- /dev/null
+++ b/.lycheeignore
@@ -0,0 +1,2 @@
+hdu-cs-wiki/edit
+file://