diff --git a/webapp/docker-compose.yml b/webapp/docker-compose.yml
index 743d7622e..43c01f3fb 100644
--- a/webapp/docker-compose.yml
+++ b/webapp/docker-compose.yml
@@ -24,6 +24,8 @@ services:
       - memcached
     volumes:
       - ./public:/home/public
+    ports:
+      - "6060:6060"
     init: true
     deploy:
       resources:
diff --git a/webapp/golang/Dockerfile b/webapp/golang/Dockerfile
index e0465946b..95df74dfa 100644
--- a/webapp/golang/Dockerfile
+++ b/webapp/golang/Dockerfile
@@ -3,5 +3,6 @@ FROM golang:1.21
 RUN mkdir -p /home/webapp
 WORKDIR /home/webapp
 COPY . /home/webapp
+EXPOSE 6060
 RUN go build -o app
 CMD ./app
diff --git a/webapp/golang/app.go b/webapp/golang/app.go
index 1713f5c98..7d76b8d02 100644
--- a/webapp/golang/app.go
+++ b/webapp/golang/app.go
@@ -22,6 +22,10 @@ import (
 	_ "github.com/go-sql-driver/mysql"
 	"github.com/gorilla/sessions"
 	"github.com/jmoiron/sqlx"
+
+	_ "net/http/pprof"
+
+	"github.com/felixge/fgprof"
 )
 
 var (
@@ -792,6 +796,11 @@ func postAdminBanned(w http.ResponseWriter, r *http.Request) {
 }
 
 func main() {
+	http.DefaultServeMux.Handle("/debug/fgprof", fgprof.Handler())
+	go func() {
+		log.Println(http.ListenAndServe(":6060", nil))
+	}()
+
 	host := os.Getenv("ISUCONP_DB_HOST")
 	if host == "" {
 		host = "localhost"
diff --git a/webapp/golang/go.mod b/webapp/golang/go.mod
index 37c229d67..0e1f48ebc 100644
--- a/webapp/golang/go.mod
+++ b/webapp/golang/go.mod
@@ -12,6 +12,8 @@ require (
 )
 
 require (
+	github.com/felixge/fgprof v0.9.3 // indirect
+	github.com/google/pprof v0.0.0-20211214055906-6f57359322fd // indirect
 	github.com/gorilla/securecookie v1.1.1 // indirect
 	github.com/memcachier/mc v2.0.1+incompatible // indirect
 )
diff --git a/webapp/golang/go.sum b/webapp/golang/go.sum
index 49670213e..5a9e9a6ce 100644
--- a/webapp/golang/go.sum
+++ b/webapp/golang/go.sum
@@ -2,15 +2,25 @@ github.com/bradfitz/gomemcache v0.0.0-20230611145640-acc696258285 h1:Dr+ezPI5ivh
 github.com/bradfitz/gomemcache v0.0.0-20230611145640-acc696258285/go.mod h1:H0wQNHz2YrLsuXOZozoeDmnHXkNCRmMW0gwFWDfEZDA=
 github.com/bradleypeabody/gorilla-sessions-memcache v0.0.0-20181103040241-659414f458e1 h1:4QHxgr7hM4gVD8uOwrk8T1fjkKRLwaLjmTkU0ibhZKU=
 github.com/bradleypeabody/gorilla-sessions-memcache v0.0.0-20181103040241-659414f458e1/go.mod h1:dkChI7Tbtx7H1Tj7TqGSZMOeGpMP5gLHtjroHd4agiI=
+github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
+github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
+github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/felixge/fgprof v0.9.3 h1:VvyZxILNuCiUCSXtPtYmmtGvb65nqXh2QFWc0Wpf2/g=
+github.com/felixge/fgprof v0.9.3/go.mod h1:RdbpDgzqYVh/T9fPELJyV7EYJuHB55UTEULNun8eiPw=
 github.com/go-chi/chi/v5 v5.0.10 h1:rLz5avzKpjqxrYwXNfmjkrYYXOyLJd37pz53UFHC6vk=
 github.com/go-chi/chi/v5 v5.0.10/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/go-sql-driver/mysql v1.7.1 h1:lUIinVbN1DY0xBg0eMOzmmtGoHwWBbvnWubQUrtU8EI=
 github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+github.com/google/pprof v0.0.0-20211214055906-6f57359322fd h1:1FjCyPC+syAzJ5/2S8fqdZK1R22vvA0J7JZKcuOIQ7Y=
+github.com/google/pprof v0.0.0-20211214055906-6f57359322fd/go.mod h1:KgnwoLYCZ8IQu3XUZ8Nc/bM9CCZFOyjUNOSygVozoDg=
 github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ=
 github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
 github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7FsgI=
 github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM=
+github.com/ianlancetaylor/demangle v0.0.0-20210905161508-09a460cdf81d/go.mod h1:aYm2/VgdVmcIU8iMfdMvDMsRAQjcfZSKFby6HOFvi/w=
 github.com/jmoiron/sqlx v1.3.5 h1:vFFPA71p1o5gAeqtEAwLU4dnX2napprKtHr7PYIcN3g=
 github.com/jmoiron/sqlx v1.3.5/go.mod h1:nRVWtLre0KfCLJvgxzCsLVMogSvQ1zNJtpYr2Ccp0mQ=
 github.com/lib/pq v1.2.0 h1:LXpIM/LZ5xGFhOpXAQUIMM1HdyqzVYM13zNdjCEEcA0=
@@ -19,3 +29,12 @@ github.com/mattn/go-sqlite3 v1.14.6 h1:dNPt6NO46WmLVt2DLNpwczCmdV5boIZ6g/tlDrlRU
 github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
 github.com/memcachier/mc v2.0.1+incompatible h1:s8EDz0xrJLP8goitwZOoq1vA/sm0fPS4X3KAF0nyhWQ=
 github.com/memcachier/mc v2.0.1+incompatible/go.mod h1:7bkvFE61leUBvXz+yxsOnGBQSZpBSPIMUQSmmSHvuXc=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=