diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 6d36ed8..4a752cf 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -44,14 +44,14 @@ jobs:
           push: true
           tags: ghcr.io/cybozu-go/login-protector:${{ inputs.tag }},ghcr.io/cybozu-go/login-protector:latest
           target: login-protector
-      - name: Build and Push tty-exporter
+      - name: Build and Push local-session-tracker
         uses: docker/build-push-action@v6
         with:
           context: .
           file: ./Dockerfile
           push: true
-          tags: ghcr.io/cybozu-go/tty-exporter:${{ inputs.tag }},ghcr.io/cybozu-go/tty-exporter:latest
-          target: tty-exporter
+          tags: ghcr.io/cybozu-go/local-session-tracker:${{ inputs.tag }},ghcr.io/cybozu-go/local-session-tracker:latest
+          target: local-session-tracker
       - name: Setup Git Config
         run: |
           git config --global user.name github-actions
diff --git a/Dockerfile b/Dockerfile
index 431cb78..997402a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,13 +15,13 @@ COPY internal/ internal/
 
 RUN CGO_ENABLED=0 go install -ldflags="-w -s" ./cmd/...
 
-# Build the tty-exporter binary
-FROM scratch AS tty-exporter
+# Build the local-session-tracker binary
+FROM scratch AS local-session-tracker
 LABEL org.opencontainers.image.source="https://github.com/cybozu-go/login-protector"
 
-COPY --from=build /go/bin/tty-exporter .
+COPY --from=build /go/bin/local-session-tracker .
 USER 10000:10000
-ENTRYPOINT ["/tty-exporter"]
+ENTRYPOINT ["/local-session-tracker"]
 
 # Build the login-protector binary
 FROM scratch AS login-protector
diff --git a/Makefile b/Makefile
index 8f3d064..05f2cfd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # Image URL to use all building/pushing image targets
 PROTECTOR_IMG ?= login-protector:dev
-EXPORTER_IMG ?= tty-exporter:dev
+TRACKER_IMG ?= local-session-tracker:dev
 
 # Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
 ifeq (,$(shell go env GOBIN))
@@ -83,17 +83,17 @@ run: manifests fmt vet ## Run a controller from your host.
 .PHONY: docker-build
 docker-build: ## Build docker image with the manager.
 	$(CONTAINER_TOOL) build -t ${PROTECTOR_IMG} . --target=login-protector
-	$(CONTAINER_TOOL) build -t ${EXPORTER_IMG} . --target=tty-exporter
+	$(CONTAINER_TOOL) build -t ${TRACKER_IMG} . --target=local-session-tracker
 
 .PHONY: docker-push
 docker-push: ## Push docker image with the manager.
 	$(CONTAINER_TOOL) push ${PROTECTOR_IMG}
-	$(CONTAINER_TOOL) push ${EXPORTER_IMG}
+	$(CONTAINER_TOOL) push ${TRACKER_IMG}
 
 .PHONY: load-image
 load-image: docker-build setup
 	kind load docker-image ${PROTECTOR_IMG}
-	kind load docker-image ${EXPORTER_IMG}
+	kind load docker-image ${TRACKER_IMG}
 
 
 .PHONY: build-installer
diff --git a/README.md b/README.md
index b39b12d..afd2040 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ curl -fsL https://github.com/cybozu-go/login-protector/releases/latest/download/
 login-protector targets only StatefulSets. The StatefulSet should be configured as follows:
 
 1. Add the label `login-protector.cybozu.io/protect: "true"` to the StatefulSet.
-2. Add the sidecar container `ghcr.io/cybozu-go/tty-exporter` and specify `shareProcessNamespace: true`.
+2. Add the sidecar container `ghcr.io/cybozu-go/local-session-tracker` and specify `shareProcessNamespace: true`.
 3. Set the `updateStrategy` to `type: OnDelete`.
 
 
@@ -71,8 +71,8 @@ spec:
         image: ghcr.io/cybozu/ubuntu:22.04
         imagePullPolicy: IfNotPresent
         command: [ "sleep", "infinity" ]
-      - name: tty-exporter
-        image: ghcr.io/cybozu-go/tty-exporter:latest
+      - name: local-session-tracker
+        image: ghcr.io/cybozu-go/local-session-tracker:latest
         imagePullPolicy: IfNotPresent
         ports:
         - name: sidecar
@@ -86,8 +86,8 @@ spec:
 
 Annotations can be used to modify the behavior of login-protector for the target StatefulSet:
 
-- `login-protector.cybozu.io/exporter-name`: Specify the name of the tty-exporter sidecar container. Default is "tty-exporter".
-- `login-protector.cybozu.io/exporter-port`: Specify the port of the tty-exporter sidecar container. Default is "8080".
+- `login-protector.cybozu.io/tracker-name`: Specify the name of the local-session-tracker sidecar container. Default is "local-session-tracker".
+- `login-protector.cybozu.io/tracker-port`: Specify the port of the local-session-tracker sidecar container. Default is "8080".
 - `login-protector.cybozu.io/no-pdb`: Set to "true" to prevent the creation of a PodDisruptionBudget.
 
 
@@ -99,8 +99,8 @@ metadata:
   labels:
     login-protector.cybozu.io/protect: "true"
   annotations:
-    login-protector.cybozu.io/exporter-name: sidecar
-    login-protector.cybozu.io/exporter-port: "9090"
+    login-protector.cybozu.io/tracker-name: sidecar
+    login-protector.cybozu.io/tracker-port: "9090"
     login-protector.cybozu.io/no-pdb: "true"
 spec:
   replicas: 1
@@ -119,7 +119,7 @@ spec:
           imagePullPolicy: IfNotPresent
           command: [ "sleep", "infinity" ]
         - name: sidecar
-          image: ghcr.io/cybozu-go/tty-exporter:latest
+          image: ghcr.io/cybozu-go/local-session-tracker:latest
           imagePullPolicy: IfNotPresent
           ports:
             - name: sidecar
diff --git a/Tiltfile b/Tiltfile
index 30c00e6..ce2a1b2 100644
--- a/Tiltfile
+++ b/Tiltfile
@@ -6,10 +6,10 @@ COPY ./bin/login-protector /
 CMD ["/login-protector"]
 '''
 
-EXPORTER_DOCKERFILE = '''FROM golang:alpine
+TRACKER_DOCKERFILE = '''FROM golang:alpine
 WORKDIR /
-COPY ./bin/tty-exporter /
-CMD ["/tty-exporter"]
+COPY ./bin/local-session-tracker /
+CMD ["/local-session-tracker"]
 '''
 
 # Generate manifests
@@ -39,11 +39,11 @@ docker_build_with_restart(
 k8s_yaml("./test/testdata/statefulset.yaml")
 
 docker_build_with_restart(
-    'tty-exporter:dev', '.',
-    dockerfile_contents=EXPORTER_DOCKERFILE,
-    entrypoint=['/tty-exporter', '--zap-devel=true'],
-    only=['./bin/tty-exporter'],
+    'local-session-tracker:dev', '.',
+    dockerfile_contents=TRACKER_DOCKERFILE,
+    entrypoint=['/local-session-tracker', '--zap-devel=true'],
+    only=['./bin/local-session-tracker'],
     live_update=[
-        sync('./bin/tty-exporter', '/tty-exporter'),
+        sync('./bin/local-session-tracker', '/local-session-tracker'),
     ]
 )
diff --git a/cmd/tty-exporter/main.go b/cmd/local-session-tracker/main.go
similarity index 85%
rename from cmd/tty-exporter/main.go
rename to cmd/local-session-tracker/main.go
index ff2f642..2622a51 100644
--- a/cmd/tty-exporter/main.go
+++ b/cmd/local-session-tracker/main.go
@@ -10,7 +10,7 @@ import (
 	"syscall"
 
 	"github.com/cybozu-go/login-protector/internal/common"
-	tty_exporter "github.com/cybozu-go/login-protector/internal/tty-exporter"
+	local_session_tracker "github.com/cybozu-go/login-protector/internal/local-session-tracker"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"go.uber.org/zap"
 )
@@ -28,9 +28,9 @@ func newZapLogger() *zap.Logger {
 func main() {
 	logger := newZapLogger()
 	defer logger.Sync() //nolint:errcheck
-	logger.Info("starting ttypdb-sidecar...")
+	logger.Info("starting local-session-tracker...")
 
-	tty_exporter.InitMetrics(logger)
+	local_session_tracker.InitMetrics(logger)
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
@@ -52,7 +52,7 @@ func main() {
 	mux := http.NewServeMux()
 	mux.HandleFunc("/readyz", handleReadyz)
 	mux.Handle("/metrics", promhttp.Handler())
-	mux.Handle("/status", tty_exporter.NewStatusHandler(logger))
+	mux.Handle("/status", local_session_tracker.NewStatusHandler(logger))
 	server := http.Server{
 		Addr:    fmt.Sprintf(":%d", httpServerPort),
 		Handler: common.NewProxyHTTPHandler(mux, logger),
diff --git a/internal/common/constants.go b/internal/common/constants.go
index ea6dc4e..81941b8 100644
--- a/internal/common/constants.go
+++ b/internal/common/constants.go
@@ -2,8 +2,8 @@ package common
 
 const LabelKeyLoginProtectorProtect = "login-protector.cybozu.io/protect"
 const AnnotationKeyNoPDB = "login-protector.cybozu.io/no-pdb"
-const AnnotationKeyExporterName = "login-protector.cybozu.io/exporter-name"
-const AnnotationKeyExporterPort = "login-protector.cybozu.io/exporter-port"
+const AnnotationKeyTrackerName = "login-protector.cybozu.io/tracker-name"
+const AnnotationKeyTrackerPort = "login-protector.cybozu.io/tracker-port"
 
 const ValueTrue = "true"
 const KindStatefulSet = "StatefulSet"
diff --git a/internal/controller/pdb_controller.go b/internal/controller/pdb_controller.go
index 7b52b61..33baf6d 100644
--- a/internal/controller/pdb_controller.go
+++ b/internal/controller/pdb_controller.go
@@ -53,13 +53,13 @@ func (r *PDBReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.R
 		return ctrl.Result{}, err
 	}
 
-	exporterName := "tty-exporter"
-	if name, ok := sts.Annotations[common.AnnotationKeyExporterName]; ok {
-		exporterName = name
+	trackerName := "local-session-tracker"
+	if name, ok := sts.Annotations[common.AnnotationKeyTrackerName]; ok {
+		trackerName = name
 	}
-	exporterPort := "8080"
-	if port, ok := sts.Annotations[common.AnnotationKeyExporterPort]; ok {
-		exporterPort = port
+	trackerPort := "8080"
+	if port, ok := sts.Annotations[common.AnnotationKeyTrackerPort]; ok {
+		trackerPort = port
 	}
 	noPDB := false
 	if noPDBStr, ok := sts.Annotations[common.AnnotationKeyNoPDB]; ok {
@@ -68,7 +68,7 @@ func (r *PDBReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.R
 
 	errorList := make([]error, 0)
 	for _, pod := range podList.Items {
-		err = r.reconcilePDB(ctx, &pod, exporterName, exporterPort, noPDB)
+		err = r.reconcilePDB(ctx, &pod, trackerName, trackerPort, noPDB)
 		if err != nil {
 			errorList = append(errorList, err)
 		}
@@ -81,7 +81,7 @@ func (r *PDBReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.R
 	return ctrl.Result{}, nil
 }
 
-func (r *PDBReconciler) reconcilePDB(ctx context.Context, pod *corev1.Pod, exporterName string, exporterPort string, noPDB bool) error {
+func (r *PDBReconciler) reconcilePDB(ctx context.Context, pod *corev1.Pod, trackerName string, trackerPort string, noPDB bool) error {
 	logger := log.FromContext(ctx)
 
 	if pod.DeletionTimestamp != nil {
@@ -114,17 +114,17 @@ func (r *PDBReconciler) reconcilePDB(ctx context.Context, pod *corev1.Pod, expor
 	var container *corev1.Container
 	for _, c := range pod.Spec.Containers {
 		c := c
-		if c.Name == exporterName {
+		if c.Name == trackerName {
 			container = &c
 			break
 		}
 	}
 	if container == nil {
-		err := fmt.Errorf("failed to find sidecar container (Name: %s)", exporterName)
+		err := fmt.Errorf("failed to find sidecar container (Name: %s)", trackerName)
 		return err
 	}
 
-	resp, err := http.Get(fmt.Sprintf("http://%s:%s/status", podIP, exporterPort))
+	resp, err := http.Get(fmt.Sprintf("http://%s:%s/status", podIP, trackerPort))
 	if err != nil {
 		return err
 	}
diff --git a/internal/tty-exporter/metrics.go b/internal/local-session-tracker/metrics.go
similarity index 86%
rename from internal/tty-exporter/metrics.go
rename to internal/local-session-tracker/metrics.go
index f0e3b64..459e07b 100644
--- a/internal/tty-exporter/metrics.go
+++ b/internal/local-session-tracker/metrics.go
@@ -1,4 +1,4 @@
-package tty_exporter
+package local_session_tracker
 
 import (
 	"math"
@@ -7,7 +7,7 @@ import (
 	"go.uber.org/zap"
 )
 
-const metricsNamespace = "tty_exporter"
+const metricsNamespace = "local_session_tracker"
 
 func InitMetrics(logger *zap.Logger) {
 	prometheus.MustRegister(prometheus.NewGaugeFunc(
diff --git a/internal/tty-exporter/server.go b/internal/local-session-tracker/server.go
similarity index 96%
rename from internal/tty-exporter/server.go
rename to internal/local-session-tracker/server.go
index e3aebf3..d92b3ba 100644
--- a/internal/tty-exporter/server.go
+++ b/internal/local-session-tracker/server.go
@@ -1,4 +1,4 @@
-package tty_exporter
+package local_session_tracker
 
 import (
 	"encoding/json"
diff --git a/internal/tty-exporter/exporter.go b/internal/local-session-tracker/tracker.go
similarity index 98%
rename from internal/tty-exporter/exporter.go
rename to internal/local-session-tracker/tracker.go
index b95a903..3d0738e 100644
--- a/internal/tty-exporter/exporter.go
+++ b/internal/local-session-tracker/tracker.go
@@ -1,4 +1,4 @@
-package tty_exporter
+package local_session_tracker
 
 import (
 	"errors"
diff --git a/test/testdata/statefulset.yaml b/test/testdata/statefulset.yaml
index 94e7408..7afa021 100644
--- a/test/testdata/statefulset.yaml
+++ b/test/testdata/statefulset.yaml
@@ -21,8 +21,8 @@ spec:
         image: ghcr.io/cybozu/ubuntu:22.04
         imagePullPolicy: IfNotPresent
         command: [ "sleep", "infinity" ]
-      - name: tty-exporter
-        image: ghcr.io/cybozu-go/tty-exporter:0.0.1
+      - name: local-session-tracker
+        image: local-session-tracker:dev
         imagePullPolicy: IfNotPresent
         ports:
         - name: sidecar
@@ -51,8 +51,8 @@ spec:
         image: ghcr.io/cybozu/ubuntu:22.04
         imagePullPolicy: IfNotPresent
         command: [ "sleep", "infinity" ]
-      - name: tty-exporter
-        image: ghcr.io/cybozu-go/tty-exporter:0.0.1
+      - name: local-session-tracker
+        image: local-session-tracker:dev
         imagePullPolicy: IfNotPresent
         ports:
         - name: sidecar