diff --git a/.eslintrc.json b/.eslintrc.json
index 4ec6a87..6d950a3 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -8,6 +8,7 @@
     "eslint:recommended",
     "plugin:react/recommended"
   ],
+  "parser": "babel-eslint",
   "parserOptions": {
     "ecmaFeatures": {
       "jsx": true
diff --git a/gatsby-browser.js b/gatsby-browser.js
index b83ed98..09a1cf8 100644
--- a/gatsby-browser.js
+++ b/gatsby-browser.js
@@ -1 +1,8 @@
-require('./src/site.css');
+import * as Sentry from '@sentry/browser';
+
+import 'site.css';
+
+export const onClientEntry = () => {
+  Sentry.getCurrentHub().getClient().getOptions().enabled =
+    (navigator.doNotTrack !== '1' && window.doNotTrack !== '1');
+};
diff --git a/gatsby-config.js b/gatsby-config.js
index 6b194ba..4ed2f98 100644
--- a/gatsby-config.js
+++ b/gatsby-config.js
@@ -19,6 +19,15 @@ module.exports = {
         anonymize: true,
         respectDNT: true
       }
+    },
+    {
+      resolve: 'gatsby-plugin-sentry',
+      options: {
+        dsn: process.env.SENTRY_DSN,
+        environment: process.env.DEPLOY_ENV || process.env.NODE_ENV,
+        debug: (process.env.NODE_ENV !== 'production'),
+        release: buildId
+      }
     }
   ]
 };
diff --git a/package.json b/package.json
index dffb3c4..7264d0f 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "gatsby-plugin-google-analytics": "^2.0.8",
     "gatsby-plugin-postcss": "^2.0.2",
     "gatsby-plugin-react-helmet": "^3.0.5",
+    "gatsby-plugin-sentry": "^1.0.0",
     "postcss-cssnext": "^3.1.0",
     "postcss-import": "^12.0.1",
     "prop-types": "^15.6.2",
diff --git a/src/components/Layout/index.js b/src/components/Layout/index.js
index d4361f1..a64c2eb 100644
--- a/src/components/Layout/index.js
+++ b/src/components/Layout/index.js
@@ -2,17 +2,20 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import { Helmet } from 'react-helmet';
 
+import SentryBoundary from 'components/SentryBoundary';
 import Header from 'components/Header';
 import Footer from 'components/Footer';
 
-const Layout = ({ title, children }) => <React.Fragment>
+const Layout = ({ title, children }) => <SentryBoundary>
   <Helmet>
     <title>{ title ? `Regexper - ${ title }` : 'Regexper' }</title>
   </Helmet>
   <Header />
-  { children }
+  <SentryBoundary>
+    { children }
+  </SentryBoundary>
   <Footer />
-</React.Fragment>;
+</SentryBoundary>;
 
 Layout.propTypes = {
   title: PropTypes.string,
diff --git a/src/components/SentryBoundary/index.js b/src/components/SentryBoundary/index.js
new file mode 100644
index 0000000..124bf29
--- /dev/null
+++ b/src/components/SentryBoundary/index.js
@@ -0,0 +1,39 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import * as Sentry from '@sentry/browser';
+
+import SentryError from 'components/SentryError';
+
+class SentryBoundary extends React.Component {
+  state = {
+    hasError: false
+  }
+
+  static getDerivedStateFromError() {
+    return { hasError: true };
+  }
+
+  componentDidCatch(error, errorInfo) {
+    Sentry.captureException(error, errorInfo);
+  }
+
+  render() {
+    const { hasError } = this.state;
+    const { children } = this.props;
+
+    if (hasError) {
+      return <SentryError />;
+    } else {
+      return children;
+    }
+  }
+}
+
+SentryBoundary.propTypes = {
+  children: PropTypes.oneOfType([
+    PropTypes.arrayOf(PropTypes.node),
+    PropTypes.node
+  ]).isRequired
+};
+
+export default SentryBoundary;
diff --git a/src/components/SentryError/index.js b/src/components/SentryError/index.js
new file mode 100644
index 0000000..3d72753
--- /dev/null
+++ b/src/components/SentryError/index.js
@@ -0,0 +1,22 @@
+import React from 'react';
+import * as Sentry from '@sentry/browser';
+
+import Message from 'components/Message';
+
+class SentryError extends React.Component {
+  reportError = event => {
+    event.preventDefault();
+
+    if (Sentry.lastEventId()) {
+      Sentry.showReportDialog();
+    }
+  }
+
+  render() {
+    return <Message type="error" heading="An error has occurred">
+      <p>This error has been logged. You may also <a href="#error-report" onClick={ this.reportError }>fill out a report</a>.</p>
+    </Message>;
+  }
+}
+
+export default SentryError;
diff --git a/yarn.lock b/yarn.lock
index 386f7bb..695d42f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -806,6 +806,58 @@
     react-lifecycles-compat "^3.0.4"
     warning "^3.0.0"
 
+"@sentry/browser@latest":
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/@sentry/browser/-/browser-4.4.2.tgz#8d361778962ef8ab1540e4ebbf64d485903abdf1"
+  integrity sha512-km5p3hPz+aoY4UiEvYxAdRJAbIK30urZSuMs/3zAUVe+8Zij0IHjHmdi9JtrMqpn+rAcWCxtRmFSYlkiKjdSUg==
+  dependencies:
+    "@sentry/core" "4.4.2"
+    "@sentry/types" "4.4.2"
+    "@sentry/utils" "4.4.2"
+    tslib "^1.9.3"
+
+"@sentry/core@4.4.2":
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/@sentry/core/-/core-4.4.2.tgz#562526bc634c087f04bbca68b09cedc4b41cc64d"
+  integrity sha512-hJyAodTCf4sZfVdf41Rtuzj4EsyzYq5rdMZ+zc2Vinwdf8D0/brHe91fHeO0CKXEb2P0wJsrjwMidG/ccq/M8A==
+  dependencies:
+    "@sentry/hub" "4.4.2"
+    "@sentry/minimal" "4.4.2"
+    "@sentry/types" "4.4.2"
+    "@sentry/utils" "4.4.2"
+    tslib "^1.9.3"
+
+"@sentry/hub@4.4.2":
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/@sentry/hub/-/hub-4.4.2.tgz#1399556fda06fb83c4f186c4aa842725f520159c"
+  integrity sha512-oe9ytXkTWyD+QmOpVzHAqTbRV4Hc0ee2Nt6HvrDtRmlXzQxfvTWG2F8KYT6w8kzqg5klnuRpnsmgTTV3KuNBVQ==
+  dependencies:
+    "@sentry/types" "4.4.2"
+    "@sentry/utils" "4.4.2"
+    tslib "^1.9.3"
+
+"@sentry/minimal@4.4.2":
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/@sentry/minimal/-/minimal-4.4.2.tgz#13fffc6b17a2401b6a79947838a637626ab80b10"
+  integrity sha512-GEZZiNvVgqFAESZhAe3vjwTInn13lI2bSI3ItQN4RUWKL/W4n/fwVoDJbkb1U8aWxanuMnRDEpKwyQv6zYTZfw==
+  dependencies:
+    "@sentry/hub" "4.4.2"
+    "@sentry/types" "4.4.2"
+    tslib "^1.9.3"
+
+"@sentry/types@4.4.2":
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/@sentry/types/-/types-4.4.2.tgz#f38dd3bc671cd2f5983a85553aebeac9c2286b17"
+  integrity sha512-QyQd6PKKIyjJgaq/RQjsxPJEWbXcuiWZ9RvSnhBjS5jj53HEzkM1qkbAFqlYHJ1DTJJ1EuOM4+aTmGzHe93zuA==
+
+"@sentry/utils@4.4.2":
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/@sentry/utils/-/utils-4.4.2.tgz#e05a47e135ecef29e63a996f59aee8c8f792c222"
+  integrity sha512-j/Ad8G1abHlJdD2q7aWWbSOSeWB5M5v1R1VKL8YPlwEbSvvmEQWePhBKFI0qlnKd2ObdUQsj86pHEXJRSFNfCw==
+  dependencies:
+    "@sentry/types" "4.4.2"
+    tslib "^1.9.3"
+
 "@types/configstore@^2.1.1":
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/@types/configstore/-/configstore-2.1.1.tgz#cd1e8553633ad3185c3f2f239ecff5d2643e92b6"
@@ -4718,6 +4770,13 @@ gatsby-plugin-react-helmet@^3.0.5:
   dependencies:
     "@babel/runtime" "^7.0.0"
 
+gatsby-plugin-sentry@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/gatsby-plugin-sentry/-/gatsby-plugin-sentry-1.0.0.tgz#746307a27f5382a9a787fa86ac812b947f8bebc5"
+  integrity sha512-6eq9RBpXXL76Ag0jp33NoWofji1jr2dhkfcJBhzAtKlztgRpkiOwm0OXrBspAa0Nu6PEPrJsEWoLAZ96w8Hj9w==
+  dependencies:
+    "@sentry/browser" latest
+
 gatsby-react-router-scroll@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/gatsby-react-router-scroll/-/gatsby-react-router-scroll-2.0.2.tgz#d8046ce2f3bfa52ef6ec55804007d976b0bb6bef"
@@ -9806,7 +9865,7 @@ trim-right@^1.0.1:
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
   integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
 
-tslib@^1.6.0, tslib@^1.9.0:
+tslib@^1.6.0, tslib@^1.9.0, tslib@^1.9.3:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
   integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==