diff --git a/.env.release.example b/.env.release.example
index a8f96fa9a..71618de1e 100644
--- a/.env.release.example
+++ b/.env.release.example
@@ -33,6 +33,7 @@ SKILLHUB_WEB_BASE_PATH=
 
 # 可选前端动作统计，默认关闭。配置方法见 docs/frontend-analytics-integration.md。
 # 只放公开参数，不放平台密钥。JSON 保持一行；Compose .env 中可用单引号包裹。
+# 修改后需重新创建 Web（up -d --force-recreate web），restart 不会重新读取本文件。
 SKILLHUB_WEB_ANALYTICS_CONFIG=
 # 仅 Web 代理使用的 HTTP(S) origin，无路径、凭证、查询或末尾斜杠。
 SKILLHUB_WEB_ANALYTICS_UPSTREAM=
diff --git a/charts/skillhub/README.md b/charts/skillhub/README.md
index 3cb6a041e..d73dfa8dd 100644
--- a/charts/skillhub/README.md
+++ b/charts/skillhub/README.md
@@ -109,7 +109,7 @@ Sentinel、实际 MinIO S3 连接，以及由 Kubernetes API 接受的 TLS Ingre
 
 默认关闭。`web.analytics.config` 接受 JSON 字符串，`web.analytics.upstream` 接受仅部署可见的
 HTTP(S) origin。支持 Umami，不需要编辑 JS 或 Nginx；先在平台创建网站并取得 UUID。
-配置变更触发 Web 滚动更新，旧标签页不会自动更新。字段、授权接口、初始化、隐私及验收见
+值放在 Web 专用 ConfigMap，只改统计配置时仅 Web 滚动更新、后端 Pod 不替换；旧标签页不会自动更新。字段、授权接口、初始化、隐私及验收见
 [前端动作统计接入指南](../../docs/frontend-analytics-integration.md)。
 
 ### 高可用模式
diff --git a/charts/skillhub/templates/configmap.yaml b/charts/skillhub/templates/configmap.yaml
index 39c9a7f5c..409b70209 100644
--- a/charts/skillhub/templates/configmap.yaml
+++ b/charts/skillhub/templates/configmap.yaml
@@ -60,6 +60,4 @@ data:
   # Sub-path deployment (empty keeps a fixed-base image's baked base; set e.g. /portal/)
   web-base-path: {{ .Values.web.basePath | default "" | quote }}
   web-api-base-url: {{ .Values.web.apiBaseUrl | default "" | quote }}
-  web-analytics-config: {{ dig "analytics" "config" "" .Values.web | quote }}
-  web-analytics-upstream: {{ dig "analytics" "upstream" "" .Values.web | quote }}
   builtin-skills-enabled: {{ .Values.builtinSkills.enabled | quote }}
diff --git a/charts/skillhub/templates/web-analytics-configmap.yaml b/charts/skillhub/templates/web-analytics-configmap.yaml
new file mode 100644
index 000000000..8dc5f54a3
--- /dev/null
+++ b/charts/skillhub/templates/web-analytics-configmap.yaml
@@ -0,0 +1,13 @@
+{{- /*
+Web-only analytics settings. Kept out of the shared ConfigMap so that changing
+analytics only rolls Web; the server checksum hashes the shared ConfigMap.
+*/}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "skillhub.fullname" . }}-web-analytics
+  labels:
+    {{- include "skillhub.web.labels" . | nindent 4 }}
+data:
+  config: {{ dig "analytics" "config" "" .Values.web | quote }}
+  upstream: {{ dig "analytics" "upstream" "" .Values.web | quote }}
diff --git a/charts/skillhub/templates/web-deployment.yaml b/charts/skillhub/templates/web-deployment.yaml
index c87bce931..6a2b2e3a7 100644
--- a/charts/skillhub/templates/web-deployment.yaml
+++ b/charts/skillhub/templates/web-deployment.yaml
@@ -61,13 +61,13 @@ spec:
             - name: SKILLHUB_WEB_ANALYTICS_CONFIG
               valueFrom:
                 configMapKeyRef:
-                  name: {{ include "skillhub.fullname" . }}-config
-                  key: web-analytics-config
+                  name: {{ include "skillhub.fullname" . }}-web-analytics
+                  key: config
             - name: SKILLHUB_WEB_ANALYTICS_UPSTREAM
               valueFrom:
                 configMapKeyRef:
-                  name: {{ include "skillhub.fullname" . }}-config
-                  key: web-analytics-upstream
+                  name: {{ include "skillhub.fullname" . }}-web-analytics
+                  key: upstream
             {{- with .Values.web.extraEnv }}
             {{- toYaml . | nindent 12 }}
             {{- end }}
diff --git a/charts/skillhub/tests/configuration-contracts.sh b/charts/skillhub/tests/configuration-contracts.sh
index d28009f21..0685cef60 100755
--- a/charts/skillhub/tests/configuration-contracts.sh
+++ b/charts/skillhub/tests/configuration-contracts.sh
@@ -475,7 +475,12 @@ assert_rejected subpath-reserved-analytics --set-string web.basePath=/_skillhub-
 assert_rejected subpath-reserved-analytics-nested --set-string web.basePath=/_skillhub-analytics/nested/
 
 render analytics-default "$CHART_DIR" >"$TMP_DIR/analytics-default.yaml"
-grep -Fq 'web-analytics-config: ""' "$TMP_DIR/analytics-default.yaml" || fail "analytics must default off"
+grep -Fq 'name: analytics-default-skillhub-web-analytics' "$TMP_DIR/analytics-default.yaml" \
+  || fail "analytics must render its Web-only ConfigMap"
+grep -Fq '  config: ""' "$TMP_DIR/analytics-default.yaml" || fail "analytics must default off"
+if grep -Eq '^  web-analytics-(config|upstream):' "$TMP_DIR/analytics-default.yaml"; then
+  fail "analytics keys must stay out of the shared ConfigMap hashed by the server"
+fi
 # --set treats {...} as a list, so pass the JSON string through a values file,
 # the same way the operator guide documents it.
 cat >"$TMP_DIR/analytics-values.yaml" <<'VALUES'
@@ -484,11 +489,48 @@ web:
     config: '{"enabled":true,"adapter":"umami","consent":"granted","adapterConfig":{"websiteId":"4398de8e-40df-4483-9eea-ed213643525f"}}'
     upstream: https://stats.example.com
 VALUES
-render analytics-enabled "$CHART_DIR" -f "$TMP_DIR/analytics-values.yaml" >"$TMP_DIR/analytics-enabled.yaml"
+render analytics-default "$CHART_DIR" -f "$TMP_DIR/analytics-values.yaml" >"$TMP_DIR/analytics-enabled.yaml"
 for key in SKILLHUB_WEB_ANALYTICS_CONFIG SKILLHUB_WEB_ANALYTICS_UPSTREAM; do
-  grep -Fq "name: $key" "$TMP_DIR/analytics-enabled.yaml" || fail "missing analytics environment"
+  grep -A4 -F "name: $key" "$TMP_DIR/analytics-enabled.yaml" \
+    | grep -Fq 'name: analytics-default-skillhub-web-analytics' \
+    || fail "$key must come from the Web-only analytics ConfigMap"
 done
-grep -Fq 'web-analytics-upstream: "https://stats.example.com"' "$TMP_DIR/analytics-enabled.yaml" || fail "missing analytics origin"
+grep -Fq '  upstream: "https://stats.example.com"' "$TMP_DIR/analytics-enabled.yaml" || fail "missing analytics origin"
+
+# Pod template annotations: "<deployment-name> <annotation> <value>" per line.
+pod_checksums() {
+  awk '
+    $1 == "kind:" { kind=$2; name="" }
+    kind == "Deployment" && name == "" && $1 == "name:" { name=$2 }
+    kind == "Deployment" && $1 ~ /^checksum\// { print name, $1, $2 }
+  ' "$1" | sort
+}
+checksum_of() {
+  pod_checksums "$1" | awk -v d="$2" -v k="$3" '$1 == d && $2 == k { print $3 }'
+}
+assert_checksum() {
+  local before=$1 after=$2 deployment=$3 annotation=$4 expect=$5
+  local a b
+  a=$(checksum_of "$before" "$deployment" "$annotation")
+  b=$(checksum_of "$after" "$deployment" "$annotation")
+  [[ -n $a && -n $b ]] || fail "$deployment must render $annotation"
+  if [[ $expect == same && $a != "$b" ]]; then
+    fail "$deployment $annotation must not change"
+  elif [[ $expect == changed && $a == "$b" ]]; then
+    fail "$deployment $annotation must change"
+  fi
+}
+web=analytics-default-skillhub-web
+server=analytics-default-skillhub-server
+# Changing only analytics must roll Web and leave every other workload alone.
+assert_checksum "$TMP_DIR/analytics-default.yaml" "$TMP_DIR/analytics-enabled.yaml" "$web" checksum/config: changed
+diff <(pod_checksums "$TMP_DIR/analytics-default.yaml" | grep -v "^$web ") \
+  <(pod_checksums "$TMP_DIR/analytics-enabled.yaml" | grep -v "^$web ") >/dev/null \
+  || fail "analytics-only changes must not replace server or other pods"
+# Backend configuration still rolls the server.
+render analytics-default "$CHART_DIR" -f "$TMP_DIR/analytics-values.yaml" \
+  --set-string bootstrapAdmin.displayName=Changed >"$TMP_DIR/analytics-server-change.yaml"
+assert_checksum "$TMP_DIR/analytics-enabled.yaml" "$TMP_DIR/analytics-server-change.yaml" "$server" checksum/config: changed
 
 # publicBaseUrl is concatenated with paths (/cli/auth, /.well-known/clawhub.json),
 # so a query or fragment corrupts the generated URLs. Reject it independently of
diff --git a/docs/frontend-analytics-integration.md b/docs/frontend-analytics-integration.md
index 7e4053cd6..c2ca30ebf 100644
--- a/docs/frontend-analytics-integration.md
+++ b/docs/frontend-analytics-integration.md
@@ -112,7 +112,8 @@ kubectl -n skillhub logs deployment/skillhub-web --tail=100
 ```
 
 deployment 名称使用 Chart 默认 release 名 `skillhub`；自定义名称时替换命令中的名称。
-值进入 ConfigMap 和 Web 环境变量，checksum 改变会触发 Web 滚动更新。
+值写入 Web 专用的 `<release>-web-analytics` ConfigMap，只改统计配置时仅 Web 滚动更新，
+后端 Pod 不会被替换。
 Chart 不自动部署 Umami。先在已有平台创建网站，并确认 Pod 出站网络、DNS 和证书可用。
 集群内 origin 使用完整服务名，例如 `http://umami.stats.svc.cluster.local:3000`，
 Nginx 的运行时 DNS 不自动补 Pod 的搜索后缀。
@@ -177,8 +178,9 @@ await window.skillhubAnalytics.start()
 
 start() 是当前页的显式授权，支持初始 consent=denied。重复 start 不重复安装。
 stop() 幂等；等待中的模块/adapter 不能迟到后重启采集。stop 返回后不新派发请求，
-但已经开始的 fetch 无法撤回。规则变更使用 stop 再初始化；环境变量变化需重建或重启 Web。
-旧标签页不会自动收到新环境参数。修改 env 文件本身不会改变正在运行的容器。
+但已经开始的 fetch 无法撤回。规则变更使用 stop 再初始化。
+修改 `.env.release` 后必须重新创建 Web（`up -d --force-recreate web`）；`docker compose restart`
+只重启原容器，不会重新注入环境变量。旧标签页不会自动收到新配置，需要用户刷新或关闭。
 
 ## 6. 根路径、子路径与验收
 
@@ -228,6 +230,7 @@ curl -i http://localhost/_skillhub-analytics/api/websites
 | SDK 失败后无事件 | 加载失败/超时后不重试；恢复平台后新开页面，或 stop 再 start。 |
 | 模块/资源返回 HTML | 检查部署版本、base path 和入口路由，不能改成任意远程脚本。 |
 | CSP 拦截 | 按原策略授权，不删除 CSP 或放宽通配符。 |
+| send 返回 400 Website not found | websiteId 是合法 UUID，但 Umami 里没有这个网站。事件不会入库；配置校验只检查格式，通过不代表采集成功，需按第 6 节到平台核对入库。 |
 | 有点击但没有统计 | 规则未配置、宿主不支持、超过 Umami 名称 50 字符，或 best-effort 丢失。 |
 | 上传 413 | 检查整条外层代理链，正常 Web 仍是 100M，统计未降低它。 |
 
@@ -262,8 +265,9 @@ Umami 仍可能由传输元数据推导浏览器、系统、设备、地域和
 超时或 stop 会丢弃。就绪后的请求彼此独立。不要同时加载第二个 Umami tracker。
 stop 的派发保护依赖固定版本在 fetch 前同步序列化的顺序，升级必须重新验证。
 
-自定义 adapter 属于开发流程，不是部署流程：在 `web/src/features/analytics/adapters/`
-增加参数校验与 send/stop factory，注册到静态 registry，再增加部署端校验和精确代理端点。
+自定义 adapter 属于开发流程，不是部署流程。除前端 adapter 外，还要改部署侧：
+在 `web/src/features/analytics/adapters/` 增加参数校验与 send/stop factory 并注册到静态 registry；
+在 Web 启动脚本增加该平台的配置校验和精确代理端点；补充前端与 `web-analytics-test.py` 测试。
 factory 检查取消信号后才创建 SDK。通用 controller 不认识厂商字段，业务组件只提供被动标签。
 复用唯一的 `skillhub-intents.mjs`，不复制 helper，也不开放远程 JS URL。
 新增标签时运行 `node web/scripts/analytics-manifest.mjs --write` 并审核语义和原生交互。
diff --git a/docs/frontend-analytics.md b/docs/frontend-analytics.md
index d7cba572f..40a3f8581 100644
--- a/docs/frontend-analytics.md
+++ b/docs/frontend-analytics.md
@@ -113,7 +113,8 @@ The loader runs separately after the first React DOM commit, never blocking moun
 Disabled, absent, invalid or denied configuration does not import the controller.
 Public `window.skillhubAnalytics.start()` explicitly grants current-page consent;
 stop() immediately disables observation. Enabled=false cannot be overridden by
-start. Deployment changes require recreating/restarting Web; old tabs do not update.
+start. Deployment changes require recreating Web (`docker compose restart` does not
+re-read the env file); old tabs do not update.
 
 ## Configuration and proxy
 
diff --git a/openspec/changes/add-configurable-frontend-analytics/design.md b/openspec/changes/add-configurable-frontend-analytics/design.md
index df3e60e8e..f5796bca2 100644
--- a/openspec/changes/add-configurable-frontend-analytics/design.md
+++ b/openspec/changes/add-configurable-frontend-analytics/design.md
@@ -51,7 +51,7 @@ Nginx 通过独立 include 片段选择已注册适配器的精确端点：Umami
 
 现有平台接入：填写 JSON 和内部 upstream，更新 Web。可选自托管组合：在 release Compose 上叠加统计服务与其持久化数据库，使用显式凭证，不新增 Nginx；创建网站/取得 UUID 等一次性平台步骤必须诚实说明。入口和 Helm 均默认关闭。
 
-部署配置变更经重建/重启 Web 使新页面生效；旧标签页不自动接收新环境参数。动态停止通过当前页面接口生效；紧急全局停止可关闭独立采集路由。文档不得宣称仅修改 env 即刻撤销已在发送的请求。模块使用正常发布构建产物与缓存策略，不把可变配置放入 immutable JS。
+部署配置变更需重新创建 Web（Compose restart 不重新注入环境变量；Helm 统计值放在 Web 专用 ConfigMap，只滚动 Web）使新页面生效；旧标签页不自动接收新环境参数。动态停止通过当前页面接口生效；紧急全局停止可关闭独立采集路由。文档不得宣称仅修改 env 即刻撤销已在发送的请求。模块使用正常发布构建产物与缓存策略，不把可变配置放入 immutable JS。
 
 ### 5. Serialization and loading implementation
 
diff --git a/openspec/changes/add-configurable-frontend-analytics/tasks.md b/openspec/changes/add-configurable-frontend-analytics/tasks.md
index e5aaea562..f83520499 100644
--- a/openspec/changes/add-configurable-frontend-analytics/tasks.md
+++ b/openspec/changes/add-configurable-frontend-analytics/tasks.md
@@ -20,7 +20,7 @@
 ## 4. PR-2 (follow-up): deployment
 - [x] 4.1 Safely serialize and validate configuration without breaking existing runtime config.
 - [x] 4.2 Add isolated proxy snippets with request-time DNS, certificate validation and exact endpoints.
-- [ ] 4.3 Wire Docker/Compose/Helm defaults and reserved sub-path validation. (Implemented; Compose/runtime checks passed. Helm CLI rendering remains unverified.)
+- [x] 4.3 Wire Docker/Compose/Helm defaults and reserved sub-path validation. Helm keeps analytics in a Web-only ConfigMap. Template checks executed with helm 3.19.0: `helm lint --strict` and `configuration-contracts.sh`, which renders before/after values and asserts that analytics-only changes roll only Web while backend changes still roll the server. A real-cluster Helm install/upgrade with analytics enabled has not been run.
 - [x] 4.4 Provide optional persistent self-hosted Compose combination without another Nginx.
 
 ## 5. PR-2 (follow-up): documentation
@@ -30,7 +30,7 @@
 
 ## 6. PR-2 (follow-up): quality gates
 - [ ] 6.1 Consolidated independent implementation review, fixes and final base checkpoint.
-- [ ] 6.2 Reviewed requirement/scenario/test matrix and targeted source/deployment checks. (Worker matrix and local checks complete; independent review and Helm execution pending.)
+- [ ] 6.2 Reviewed requirement/scenario/test matrix and targeted source/deployment checks. (Worker matrix, local checks and Helm template checks complete; maintainer verified the real image, backend, Umami, Postgres and browser path. Real-cluster Helm verification and independent review pending.)
 - [ ] 6.3 Exact-SHA release Compose S3/auth smoke and Chromium normal/changed/failure scenarios, including default zero module/SDK/request and root/sub-path upload/login/download/CSP/cache compatibility. (Local browser/real-collector and HTTP proxy checks passed; full backend S3/auth smoke remains pending.)
 - [ ] 6.4 CI/privacy/readiness, one validation report and retained preview for human acceptance.
 - [ ] 6.5 Close Issue #989 only after configuration-only deployment is complete and verified, not when PR-1 merges.