diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2d412292c9..5dd575bd05 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,6 +2,13 @@ name: build
 
 on:
   workflow_dispatch:
+  workflow_call:
+    inputs:
+      arguments:
+        description: "build.sh に渡すコマンドライン引数"
+        default: ''
+        required: false
+        type: string
   push:
     branches:
       - master
@@ -12,18 +19,18 @@ on:
 
 jobs:
   build:
+    if: github.repository_owner == 'cpprefjp' || startsWith(inputs.arguments, '--pull ')
     runs-on: ubuntu-latest
     steps:
-    - name: Register SSH key
-      env:
-        CPPREFJP_GITHUB_IO_SECRETS: ${{ secrets.CPPREFJP_GITHUB_IO_SECRETS }}
+    - id: vars
       run: |
-        mkdir -p $HOME/.ssh
-        echo "$CPPREFJP_GITHUB_IO_SECRETS" > $HOME/.ssh/id_ed25519
-        chmod 600 $HOME/.ssh/id_ed25519
+        echo "base_repo=${{ startsWith(inputs.arguments, '--pull ') && github.event.pull_request.base.repo.full_name || github.event.repository.full_name }}" >> "$GITHUB_OUTPUT"
+        echo "head_repo=${{ startsWith(inputs.arguments, '--pull ') && github.event.pull_request.head.repo.full_name || github.event.repository.full_name }}" >> "$GITHUB_OUTPUT"
+        echo "head_ref=${{ startsWith(inputs.arguments, '--pull ') && github.event.pull_request.head.ref || github.ref }}" >> "$GITHUB_OUTPUT"
 
     # site_generator
-    - uses: actions/checkout@v4
+    - name: Check out cpprefjp/site_generator
+      uses: actions/checkout@v4
       with:
         repository: cpprefjp/site_generator
         path: site_generator
@@ -31,31 +38,29 @@ jobs:
       working-directory: site_generator
 
     # kunai
-    - uses: actions/checkout@v4
+    - name: Check out cpprefjp/kunai
+      uses: actions/checkout@v4
       with:
         repository: cpprefjp/kunai
         path: site_generator/kunai
     - run: git submodule update -i
       working-directory: site_generator/kunai
 
-    # cpprefjp.github.io
-    - uses: actions/checkout@v4
+    # site (typically cpprefjp/site)
+    - name: Check out ${{ steps.vars.outputs.head_repo }}
+      uses: actions/checkout@v4
       with:
-        repository: cpprefjp/cpprefjp.github.io
-        path: site_generator/cpprefjp/cpprefjp.github.io
-
-    # site
-    - uses: actions/checkout@v4
-      with:
-        repository: cpprefjp/site
-        path: site_generator/cpprefjp/site
+        repository: ${{ steps.vars.outputs.head_repo }}
         # atom 生成のために全履歴が必要
         fetch-depth: 0
+        ref: ${{ steps.vars.outputs.head_ref }}
+        path: site_generator/cpprefjp/site
     - run: git submodule update -i
       working-directory: site_generator/cpprefjp/site
 
-    # site
-    - uses: actions/checkout@v2
+    # image
+    - name: Check out cpprefjp/image
+      uses: actions/checkout@v4
       with:
         repository: cpprefjp/image
         path: site_generator/cpprefjp/image
@@ -66,10 +71,65 @@ jobs:
         python-version: 3.11
         # 3.12でUndefined symbolエラーがでた
 
+    # build.sh - base の build.sh を使う必要がある。もし PR head の
+    # build.sh を使うと、pull_request_target で呼び出された時に PR
+    # head の build.sh に悪意のあるコードが埋め込まれていると秘密鍵な
+    # ど盗まれてしまう。
+    - name: Check out build.sh
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ steps.vars.outputs.base_repo }}
+        ref: master
+        sparse-checkout: .github
+        path: .trusted
+
+    # Deploy 用
+    - name: "(Deploy) Register SSH key"
+      if: inputs.arguments == ''
+      env:
+        CPPREFJP_GITHUB_IO_SECRETS: ${{ secrets.CPPREFJP_GITHUB_IO_SECRETS }}
+      run: |
+        mkdir -p $HOME/.ssh
+        echo "$CPPREFJP_GITHUB_IO_SECRETS" > $HOME/.ssh/id_ed25519
+        chmod 600 $HOME/.ssh/id_ed25519
+
+    # Deploy 用
+    - name: "(Deploy) Check out cpprefjp.github.io"
+      if: inputs.arguments == ''
+      uses: actions/checkout@v4
+      with:
+        repository: cpprefjp/cpprefjp.github.io
+        path: site_generator/cpprefjp/cpprefjp.github.io
+
+    # Preview 用
+    - name: "(Preview build) Check out gh-pages"
+      if: startsWith(inputs.arguments, '--pull ')
+      continue-on-error: true
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ github.event.pull_request.base.repo.full_name }}
+        ref: gh-pages
+        path: site_generator/cpprefjp/gh-pages
+
     # あとはスクリプトで頑張る
-    - run: ./cpprefjp/site/.github/workflows/script/build.sh
+    - name: Run script build.sh
+      run: ../.trusted/.github/workflows/script/build.sh ${{ inputs.arguments }}
       working-directory: site_generator
 
+    # Preview 用
+    - name: "(Preview build) Publish result in gh-pages"
+      if: startsWith(inputs.arguments, '--pull ')
+      uses: peaceiris/actions-gh-pages@v4
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: ./site_generator/cpprefjp/gh-pages
+
+        # Note: 以下のコミットメッセージは .github/workflows/preview_clear.yml
+        # で削除対象のコミットの特定に用いるので、変更する場合は preview_clear
+        # も一緒に更新すること。
+        commit_message: |
+          Preview PR ${{ github.event.number }}: ${{ github.event.pull_request.head.sha }} ←
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 0000000000..ff7f96ea6f
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,154 @@
+name: check
+
+on: [push, pull_request_target, workflow_dispatch]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        item:
+          - {name: code_qualify}
+          - {name: defined_word}
+          - {name: display_error}
+          - {name: meta_header}
+          - {name: ngword}
+          - {name: inner_link, script: link_check.py --check-inner-link}
+    name: check (${{ matrix.item.name }})
+    steps:
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install requests
+    - uses: actions/checkout@v4
+      with:
+        repository: ${{ github.event_name == 'pull_request_target' && github.event.pull_request.head.repo.full_name || github.event.repository.full_name }}
+        ref: ${{ github.event_name == 'pull_request_target' && github.event.pull_request.head.ref || github.ref }}
+    - uses: actions/checkout@v4
+      with:
+        repository: ${{ github.event_name == 'pull_request_target' && github.event.pull_request.base.repo.full_name || github.event.repository.full_name }}
+        ref: ${{ github.event_name == 'pull_request_target' && 'master' || github.ref }}
+        sparse-checkout: .github
+        path: .trusted
+    - name: check
+      run: python3 .trusted/.github/workflows/script/${{ matrix.item.script || format('{0}_check.py', matrix.item.name) }}
+
+  detect_forbidden_characters:
+    # 本リポジトリでは、以下に挙げる文字の使用を禁止している：
+    # U+00AD SOFT HYPHEN (ソフトハイフン)
+    # U+200B ZERO WIDTH SPACE (ゼロ幅スペース)
+    #
+    # 経緯は以下を参照：
+    # #735 SOFT HYPHENを削除する？
+    # https://github.com/cpprefjp/site/issues/735
+    runs-on: ubuntu-latest
+    env:
+      RIPGREP_VERSION: 14.1.0
+      BIN_DIR: ${{ github.workspace }}/bin
+      REPO_DIR: repo
+      cache-version: v1
+    steps:
+    - id: cache-ripgrep
+      uses: actions/cache@v3
+      with:
+        path: ${{ env.BIN_DIR }}
+        key: ${{ env.cache-version }}-ripgrep-${{ env.RIPGREP_VERSION }}
+    - name: install ripgrep
+      if: steps.cache-ripgrep.outputs.cache-hit != 'true'
+      run: |
+        curl -fsSLO https://github.com/BurntSushi/ripgrep/releases/download/$RIPGREP_VERSION/ripgrep-$RIPGREP_VERSION-x86_64-unknown-linux-musl.tar.gz
+        mkdir -p $BIN_DIR
+        tar xvf ripgrep-$RIPGREP_VERSION-x86_64-unknown-linux-musl.tar.gz --strip=1 --no-anchor -C $BIN_DIR rg
+      working-directory: ${{ runner.temp }}
+    - uses: actions/checkout@v4
+      with:
+        path: ${{ env.REPO_DIR }}
+    - name: check
+      run: "! $BIN_DIR/rg -t md --vimgrep '[\u00ad\u200b]' $REPO_DIR"
+
+  preview_build:
+    if: github.event_name == 'pull_request_target'
+    needs: [check, detect_forbidden_characters]
+    uses: ./.github/workflows/build.yml
+    with:
+      arguments: --pull ${{ github.event.number }}
+    concurrency:
+      group: cpprefjp.gh-pages.lock
+
+  preview_link:
+    needs: preview_build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - id: vars
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const sha0 = context.payload.pull_request.base.sha;
+            const sha = context.payload.pull_request.head.sha;
+            const base_url = (() => {
+              const owner = context.payload.pull_request.head.repo.owner.login;
+              const repo = context.payload.pull_request.head.repo.name;
+              const pull = context.payload.number;
+              return `https://${owner}.github.io/${repo}/gen/pull/${pull}`;
+            })();
+            const repo_full = context.payload.pull_request.head.repo.full_name;
+            const branch = context.payload.pull_request.head.ref;
+
+            // https://qiita.com/akko_merry/items/dda3c6b7ae01ac143a8b#comment-e0ecb4abe4d3d6d76054
+            const now = new Date();
+            now.setMinutes(now.getMinutes() + 9 * 60); // JST is +0900
+            const time = now.toJSON()?.replace('T', ' ').slice(0, 19) + ' JST';
+
+            core.setOutput('sha0', sha0);
+            core.setOutput('sha', sha);
+            core.setOutput('base_url', base_url);
+            core.setOutput('repo_full', repo_full);
+            core.setOutput('ubranch', encodeURIComponent(branch));
+            core.setOutput('time', time);
+
+      - id: file_list
+        shell: bash
+        run: |
+            content=$(
+              git diff --name-status --diff-filter=dr ${{ steps.vars.outputs.sha0 }} ${{ steps.vars.outputs.sha }} |
+                sed -n '
+                  # normalize the line format
+                  s/^[[:space:]]*\([^[:space:]]\{1,\}\)[[:space:]]\{1,\}/\1 /
+
+                  # exclude filenames containing special characters that may break Markdown
+                  /[][`()]/d
+
+                  # exclude README.md
+                  /^[^[:space:]]* README\.md$/d
+
+                  # generate list items
+                  s|^A \(.*\)\.md$|- :memo: [`\1`](${{ steps.vars.outputs.base_url }}/\1.html) :sparkles:|p
+                  s|^[^[:space:]]* \(.*\)\.md$|- :memo: [`\1`](${{ steps.vars.outputs.base_url }}/\1.html)|p
+                '
+            )
+            [[ $content ]] || content='- (内容変更された `.md` ファイルはありません)'
+            echo 'content<<EOF' >> "$GITHUB_OUTPUT"
+            echo "$content" >> "$GITHUB_OUTPUT"
+            echo 'EOF' >> "$GITHUB_OUTPUT"
+      - uses: thollander/actions-comment-pull-request@v3
+        with:
+          message: |
+            :zap: [**プレビュー (HTML)**](${{ steps.vars.outputs.base_url }}) (更新時刻: ${{ steps.vars.outputs.time }})
+
+            - **⫯** Commit: ${{ steps.vars.outputs.sha }}
+            - プレビューの生成には時間がかかります (3～5分)。進捗状況は[こちら](https://github.com/${{ steps.vars.outputs.repo_full }}/actions?query=event%3Apull_request_target+branch%3A${{ steps.vars.outputs.ubranch }})をご確認ください。
+
+            #### 変更記事一覧
+
+            ${{ steps.file_list.outputs.content }}
+
+            ※ソース (.md) に直接変更のあった記事を列挙しています。グローバル修飾や変換規則の変更による変化は考慮していません。
+          comment-tag: cpprefjp-preview_link
+          github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/code_qualify_check.yml b/.github/workflows/code_qualify_check.yml
deleted file mode 100644
index 4260abe065..0000000000
--- a/.github/workflows/code_qualify_check.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: code qualify check
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - uses: actions/checkout@v4
-    - name: check
-      run: python3 .github/workflows/script/code_qualify_check.py
diff --git a/.github/workflows/defined_word_check.yml b/.github/workflows/defined_word_check.yml
deleted file mode 100644
index 0ca06f2ddf..0000000000
--- a/.github/workflows/defined_word_check.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: defined word check
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - uses: actions/checkout@v4
-    - name: check
-      run: python3 .github/workflows/script/defined_word_check.py
diff --git a/.github/workflows/detect_forbidden_characters.yml b/.github/workflows/detect_forbidden_characters.yml
deleted file mode 100644
index 3db4dd2eeb..0000000000
--- a/.github/workflows/detect_forbidden_characters.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-name: detect forbidden characters
-
-# 本リポジトリでは、以下に挙げる文字の使用を禁止している：
-# U+00AD SOFT HYPHEN (ソフトハイフン)
-# U+200B ZERO WIDTH SPACE (ゼロ幅スペース)
-#
-# 経緯は以下を参照：
-# #735 SOFT HYPHENを削除する？
-# https://github.com/cpprefjp/site/issues/735
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    env:
-      RIPGREP_VERSION: 14.1.0
-      BIN_DIR: ${{ github.workspace }}/bin
-      REPO_DIR: repo
-      cache-version: v1
-    steps:
-    - id: cache-ripgrep
-      uses: actions/cache@v3
-      with:
-        path: ${{ env.BIN_DIR }}
-        key: ${{ env.cache-version }}-ripgrep-${{ env.RIPGREP_VERSION }}
-    - name: install ripgrep
-      if: steps.cache-ripgrep.outputs.cache-hit != 'true'
-      run: |
-        curl -fsSLO https://github.com/BurntSushi/ripgrep/releases/download/$RIPGREP_VERSION/ripgrep-$RIPGREP_VERSION-x86_64-unknown-linux-musl.tar.gz
-        mkdir -p $BIN_DIR
-        tar xvf ripgrep-$RIPGREP_VERSION-x86_64-unknown-linux-musl.tar.gz --strip=1 --no-anchor -C $BIN_DIR rg
-      working-directory: ${{ runner.temp }}
-    - uses: actions/checkout@v4
-      with:
-        path: ${{ env.REPO_DIR }}
-    - name: check
-      run: "! $BIN_DIR/rg -t md --vimgrep '[\u00ad\u200b]' $REPO_DIR"
diff --git a/.github/workflows/display_error_check.yml b/.github/workflows/display_error_check.yml
deleted file mode 100644
index 54768c9d50..0000000000
--- a/.github/workflows/display_error_check.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: display error check
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - uses: actions/checkout@v4
-    - name: check
-      run: python3 .github/workflows/script/display_error_check.py
diff --git a/.github/workflows/inner_link_check.yml b/.github/workflows/inner_link_check.yml
deleted file mode 100644
index 84ae4e0aa0..0000000000
--- a/.github/workflows/inner_link_check.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: inner link check
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - uses: actions/checkout@v4
-    - name: check
-      run: python3 .github/workflows/script/link_check.py --check-inner-link
diff --git a/.github/workflows/meta_header_check.yml b/.github/workflows/meta_header_check.yml
deleted file mode 100644
index 9da3e3f520..0000000000
--- a/.github/workflows/meta_header_check.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: meta header check
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - uses: actions/checkout@v4
-    - name: check
-      run: python3 .github/workflows/script/meta_header_check.py
diff --git a/.github/workflows/ngword_check.yml b/.github/workflows/ngword_check.yml
deleted file mode 100644
index 03a71c6cb3..0000000000
--- a/.github/workflows/ngword_check.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: ngword check
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - uses: actions/checkout@v4
-    - name: check
-      run: python3 .github/workflows/script/ngword_check.py
diff --git a/.github/workflows/outer_link_check.yml b/.github/workflows/outer_link_check.yml
index 309b0152bd..2ae2262183 100644
--- a/.github/workflows/outer_link_check.yml
+++ b/.github/workflows/outer_link_check.yml
@@ -9,6 +9,7 @@ on:
 
 jobs:
   build:
+    if: github.repository_owner == 'cpprefjp'
     runs-on: ubuntu-latest
     steps:
     - name: Set up Python
diff --git a/.github/workflows/preview_clear.yml b/.github/workflows/preview_clear.yml
new file mode 100644
index 0000000000..2272532ade
--- /dev/null
+++ b/.github/workflows/preview_clear.yml
@@ -0,0 +1,39 @@
+name: preview_clear
+
+on: workflow_dispatch
+
+jobs:
+  preview_clear:
+    concurrency:
+      group: cpprefjp.gh-pages.lock
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: gh-pages
+          fetch-depth: 0
+      - name: filter-branch gh-pages
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          set -ex
+
+          # Note: 以下の 999 という数は適当な大きな数。もし open PR の数が 999
+          # を超えるようならば、この数はもっと大きくする必要がある。
+          PREVIEW_CLEAR_PR_LIST=$(gh pr list --limit=999 --json number -q '.[].number' | tr '\n' ' ')
+          PREVIEW_CLEAR_PR_LIST=${PREVIEW_CLEAR_PR_LIST% }
+          export PREVIEW_CLEAR_PR_LIST
+
+          git config --global user.name 'github-actions[bot]'
+          git config --global user.email '41898282+github-actions[bot]@users.noreply.github.com'
+          git filter-branch --commit-filter '
+            pr=$(git log -n 1 --pretty=format:%s "$GIT_COMMIT" | sed -n '\''s/^Preview PR \([0-9]\{1,\}\).*/\1/p'\'')
+            case " $PREVIEW_CLEAR_PR_LIST |  " in
+            (*" $pr "*)
+              git commit-tree "$@" ;;
+            (*)
+              skip_commit "$@" ;;
+            esac
+          ' HEAD
+
+          git push -f origin gh-pages
diff --git a/.github/workflows/script/build.sh b/.github/workflows/script/build.sh
index 519efd5723..a092f7da98 100755
--- a/.github/workflows/script/build.sh
+++ b/.github/workflows/script/build.sh
@@ -33,14 +33,32 @@ popd
 pip3 install -r docker/requirements.txt
 python3 run.py settings.cpprefjp --concurrency=`nproc`
 
-# 生成されたサイトの中身を push
-pushd cpprefjp/cpprefjp.github.io
-  # push するために ssh のリモートを追加する
-  git remote add origin2 git@github.com:cpprefjp/cpprefjp.github.io.git
-
-  git add ./ --all
-  git config --global user.email "shigemasa7watanabe+cpprefjp@gmail.com"
-  git config --global user.name "cpprefjp-autoupdate"
-  git commit -a -m "update automatically"
-  git push origin2 master
-popd
+if (($# == 0)); then
+  # 生成されたサイトの中身を push
+  pushd cpprefjp/cpprefjp.github.io
+    # push するために ssh のリモートを追加する
+    git remote add origin2 git@github.com:cpprefjp/cpprefjp.github.io.git
+  
+    git add ./ --all
+    git config --global user.email "shigemasa7watanabe+cpprefjp@gmail.com"
+    git config --global user.name "cpprefjp-autoupdate"
+    git commit -a -m "update automatically"
+    git push origin2 master
+  popd
+
+elif [[ $1 == --pull ]]; then
+  if [[ ! $2 ]]; then
+    printf '%s\n' "build.sh: プルリクエスト番号が指定されていません" >&2
+    exit 2
+  fi
+
+  target_directory=cpprefjp/gh-pages/gen/pull/$2
+  rm -rf "$target_directory"
+  mkdir -p "$target_directory"
+  cp -r cpprefjp/cpprefjp.github.io/* "$target_directory"/
+
+else
+  printf '%s\n' "build.sh: コマンドライン引数が認識できません: $1" >&2
+  exit 2
+  
+fi
diff --git a/README.md b/README.md
index b9534c0fcf..e9ac5309dd 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,7 @@
 site
 ====
 
-[![detect forbidden characters](https://github.com/cpprefjp/site/workflows/detect%20forbidden%20characters/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/detect_forbidden_characters.yml)
-[![inner link check](https://github.com/cpprefjp/site/workflows/inner%20link%20check/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/inner_link_check.yml)
-[![code qualify check](https://github.com/cpprefjp/site/workflows/code%20qualify%20check/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/code_qualify_check.yml)
-[![ngword check](https://github.com/cpprefjp/site/workflows/ngword%20check/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/ngword_check.yml)
-[![meta header check](https://github.com/cpprefjp/site/workflows/meta%20header%20check/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/meta_header_check.yml)
+[![check](https://github.com/cpprefjp/site/workflows/check/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/check.yml)
 [![outer link check](https://github.com/cpprefjp/site/workflows/outer%20link%20check/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/outer_link_check.yml)
 [![build](https://github.com/cpprefjp/site/workflows/build/badge.svg)](https://github.com/cpprefjp/site/actions/workflows/build.yml)
 
diff --git a/start_editing.md b/start_editing.md
index f531cda398..4d74e62b02 100644
--- a/start_editing.md
+++ b/start_editing.md
@@ -27,6 +27,8 @@ cpprefjp/site へ push すると、すぐに反映されます。
 ### 自動デプロイ、自動テスト
 本リポジトリでは、GitHub Actionsを使用して、自動デプロイと自動テストを行っています。
 
+Pull Request 時にも自動テストと自動プレビュー生成を行います。
+
 #### 自動デプロイ
 buildアクションで、MarkdownからHTMLへの変換と、GitHub Pagesへのデプロイを行っています。
 
@@ -40,7 +42,7 @@ buildアクションで、MarkdownからHTMLへの変換と、GitHub Pagesへの
     - 説明は[detect_forbidden_characters.yml](https://github.com/cpprefjp/site/blob/master/.github/workflows/detect_forbidden_characters.yml)のコメントを参照
 - 内部リンクの誤り検出 (inner link checkアクション)
     - サイト内のリンクが存在しない、または存在しているのに.nolinkを指定している場合にエラーが発生する
-    - [GitHub Actionsの実行ログ](https://github.com/cpprefjp/site/actions/workflows/inner_link_check.yml)で、どのページのどのリンクが不正かがわかるので、それを修正すること
+    - [GitHub Actionsの実行ログ](https://github.com/cpprefjp/site/actions/workflows/check.yml)で、どのページのどのリンクが不正かがわかるので、それを修正すること
 - 外部リンク切れを検出 (outer link checkアクション)
     - 日本時間で日曜日の23:30に実行される
     - 外部リンクのページにアクセスできない (ページが消滅したか、一時的にアクセスできない、などの理由) 場合にエラーとなる
@@ -50,7 +52,7 @@ buildアクションで、MarkdownからHTMLへの変換と、GitHub Pagesへの
     - 海外からのアクセス (GitHub Actions) を拒否しているページもあるため、そのようなページは個別にチェックから外す ([link_check.py](https://github.com/cpprefjp/site/blob/master/.github/workflows/script/link_check.py)の`IGNORE_LIST`に追加する)
 - コード修飾の誤り検出 (code qualify checkアクション)
     - コードブロック中のコードを修飾しているのに、その修飾対象がない場合に、エラーが発生する
-    - [GitHub Actionsの実行ログ](https://github.com/cpprefjp/site/actions/workflows/code_qualify_check.yml)で、どのページのどのコード修飾が不正かがわかるので、それを修正すること
+    - [GitHub Actionsの実行ログ](https://github.com/cpprefjp/site/actions/workflows/check.yml)で、どのページのどのコード修飾が不正かがわかるので、それを修正すること
 - 所属ヘッダメタ情報の誤り検出 (meta header checkアクション)
     - `[meta header]`または`[meta module]`指定が誤っている（ディレクトリ階層と一致しない）場合に、エラーが発生する
     - 導入経緯は [PR#1204](https://github.com/cpprefjp/site/issues/1204) を参照