diff --git a/frontend-react/package-lock.json b/frontend-react/package-lock.json
index ff7919b21..8004e85eb 100644
--- a/frontend-react/package-lock.json
+++ b/frontend-react/package-lock.json
@@ -2306,6 +2306,98 @@
         "react-dom": "^16.6.1"
       }
     },
+    "@sentry/browser": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/browser/-/browser-5.22.3.tgz",
+      "integrity": "sha512-2TzE/CoBa5ZkvxJizDdi1Iz1ldmXSJpFQ1mL07PIXBjCt0Wxf+WOuFSj5IP4L40XHfJE5gU8wEvSH0VDR8nXtA==",
+      "requires": {
+        "@sentry/core": "5.22.3",
+        "@sentry/types": "5.22.3",
+        "@sentry/utils": "5.22.3",
+        "tslib": "^1.9.3"
+      }
+    },
+    "@sentry/core": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/core/-/core-5.22.3.tgz",
+      "integrity": "sha512-eGL5uUarw3o4i9QUb9JoFHnhriPpWCaqeaIBB06HUpdcvhrjoowcKZj1+WPec5lFg5XusE35vez7z/FPzmJUDw==",
+      "requires": {
+        "@sentry/hub": "5.22.3",
+        "@sentry/minimal": "5.22.3",
+        "@sentry/types": "5.22.3",
+        "@sentry/utils": "5.22.3",
+        "tslib": "^1.9.3"
+      }
+    },
+    "@sentry/hub": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/hub/-/hub-5.22.3.tgz",
+      "integrity": "sha512-INo47m6N5HFEs/7GMP9cqxOIt7rmRxdERunA3H2L37owjcr77MwHVeeJ9yawRS6FMtbWXplgWTyTIWIYOuqVbw==",
+      "requires": {
+        "@sentry/types": "5.22.3",
+        "@sentry/utils": "5.22.3",
+        "tslib": "^1.9.3"
+      }
+    },
+    "@sentry/minimal": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/minimal/-/minimal-5.22.3.tgz",
+      "integrity": "sha512-HoINpYnVYCpNjn2XIPIlqH5o4BAITpTljXjtAftOx6Hzj+Opjg8tR8PWliyKDvkXPpc4kXK9D6TpEDw8MO0wZA==",
+      "requires": {
+        "@sentry/hub": "5.22.3",
+        "@sentry/types": "5.22.3",
+        "tslib": "^1.9.3"
+      }
+    },
+    "@sentry/react": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/react/-/react-5.22.3.tgz",
+      "integrity": "sha512-Or/tLayuxpOJhIWOXiDKdaJQZ981uRS9NT0QcPvU+Si1qTElSqtH1zB94GlwhgpglkbmLPiYq6VPrG2HOiZ79Q==",
+      "requires": {
+        "@sentry/browser": "5.22.3",
+        "@sentry/minimal": "5.22.3",
+        "@sentry/types": "5.22.3",
+        "@sentry/utils": "5.22.3",
+        "hoist-non-react-statics": "^3.3.2",
+        "tslib": "^1.9.3"
+      },
+      "dependencies": {
+        "hoist-non-react-statics": {
+          "version": "3.3.2",
+          "resolved": "https://registry.npmjs.org/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz",
+          "integrity": "sha512-/gGivxi8JPKWNm/W0jSmzcMPpfpPLc3dY/6GxhX2hQ9iGj3aDfklV4ET7NjKpSinLpJ5vafa9iiGIEZg10SfBw==",
+          "requires": {
+            "react-is": "^16.7.0"
+          }
+        }
+      }
+    },
+    "@sentry/tracing": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/tracing/-/tracing-5.22.3.tgz",
+      "integrity": "sha512-Zp59kMCk5v56ZAyErqjv/QvGOWOQ5fRltzeVQVp8unIDTk6gEFXfhwPsYHOokJe1mfkmrgPDV6xAkYgtL3KCDQ==",
+      "requires": {
+        "@sentry/hub": "5.22.3",
+        "@sentry/minimal": "5.22.3",
+        "@sentry/types": "5.22.3",
+        "@sentry/utils": "5.22.3",
+        "tslib": "^1.9.3"
+      }
+    },
+    "@sentry/types": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/types/-/types-5.22.3.tgz",
+      "integrity": "sha512-cv+VWK0YFgCVDvD1/HrrBWOWYG3MLuCUJRBTkV/Opdy7nkdNjhCAJQrEyMM9zX0sac8FKWKOHT0sykNh8KgmYw=="
+    },
+    "@sentry/utils": {
+      "version": "5.22.3",
+      "resolved": "https://registry.npmjs.org/@sentry/utils/-/utils-5.22.3.tgz",
+      "integrity": "sha512-AHNryXMBvIkIE+GQxTlmhBXD0Ksh+5w1SwM5qi6AttH+1qjWLvV6WB4+4pvVvEoS8t5F+WaVUZPQLmCCWp6zKw==",
+      "requires": {
+        "@sentry/types": "5.22.3",
+        "tslib": "^1.9.3"
+      }
+    },
     "@styled-system/background": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/@styled-system/background/-/background-5.1.2.tgz",
diff --git a/frontend-react/package.json b/frontend-react/package.json
index 9f0a8531d..37cb9c773 100644
--- a/frontend-react/package.json
+++ b/frontend-react/package.json
@@ -10,6 +10,8 @@
     "@reach/router": "^1.3.4",
     "@rehooks/local-storage": "^2.4.0",
     "@sendou/react-sketch": "^0.5.2",
+    "@sentry/react": "^5.22.3",
+    "@sentry/tracing": "^5.22.3",
     "@types/jest": "^26.0.13",
     "@types/reach__router": "^1.3.5",
     "@types/react": "^16.9.49",
diff --git a/frontend-react/src/index.tsx b/frontend-react/src/index.tsx
index 2bda1e7c8..b54984f1a 100644
--- a/frontend-react/src/index.tsx
+++ b/frontend-react/src/index.tsx
@@ -11,11 +11,22 @@ import { ApolloProvider } from "@apollo/react-hooks"
 import { QueryParamProvider } from "use-query-params"
 import { HelmetProvider } from "react-helmet-async"
 import { LocationProvider, createHistory } from "@reach/router"
+import * as Sentry from "@sentry/react"
+import { Integrations } from "@sentry/tracing"
 import ApolloClient from "apollo-boost"
 import * as serviceWorker from "./serviceWorker"
 import customIcons from "./assets/icons"
 import "./i18n"
 
+if (process.env.NODE_ENV === "production") {
+  Sentry.init({
+    dsn:
+      "https://fbdedefb54744b33aa0450f1f9f52ee9@o443322.ingest.sentry.io/5416867",
+    integrations: [new Integrations.BrowserTracing()],
+    tracesSampleRate: 0.5,
+  })
+}
+
 const client = new ApolloClient({
   uri:
     process.env.NODE_ENV === "production"