diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index ad328ca..b1c1992 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -10,6 +10,9 @@
 
     {{ partial "favicon.html" }}
 
+    <!-- Intentionally early, to prevent the rest of the page rendering -->
+    {{ partial "script_async.html" "js/ie11-deterrent.js" }}
+
     {{ partial "style.html" "scss/style.scss" }}
     {{ partial "style.html" "css/font-awesome.css" }}
 
diff --git a/package-lock.json b/package-lock.json
index b0b11cc..22f5d84 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "1.0.0",
       "dependencies": {
         "@fortawesome/fontawesome-free": "5.15.3",
+        "@ledge/is-ie-11": "^7.0.0",
         "bootstrap": "4.6.1",
         "elevator.js": "1.0.1",
         "jquery": "3.6.0",
@@ -103,6 +104,11 @@
         "node": ">=6"
       }
     },
+    "node_modules/@ledge/is-ie-11": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@ledge/is-ie-11/-/is-ie-11-7.0.0.tgz",
+      "integrity": "sha512-+GYssT+YJ41STf0D/rgPgDDLf88cUKkRZhlh4+P7+JNl5ZhA4Pji1x8WRHrOA1ttaZCk1ootFW1WvRaGom5rmw=="
+    },
     "node_modules/@types/color-name": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
@@ -7654,6 +7660,11 @@
       "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-free/-/fontawesome-free-5.15.3.tgz",
       "integrity": "sha512-rFnSUN/QOtnOAgqFRooTA3H57JLDm0QEG/jPdk+tLQNL/eWd+Aok8g3qCI+Q1xuDPWpGW/i9JySpJVsq8Q0s9w=="
     },
+    "@ledge/is-ie-11": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@ledge/is-ie-11/-/is-ie-11-7.0.0.tgz",
+      "integrity": "sha512-+GYssT+YJ41STf0D/rgPgDDLf88cUKkRZhlh4+P7+JNl5ZhA4Pji1x8WRHrOA1ttaZCk1ootFW1WvRaGom5rmw=="
+    },
     "@types/color-name": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
diff --git a/package.json b/package.json
index 9087e1f..ec0d6ee 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
   },
   "dependencies": {
     "@fortawesome/fontawesome-free": "5.15.3",
+    "@ledge/is-ie-11": "^7.0.0",
     "bootstrap": "4.6.1",
     "elevator.js": "1.0.1",
     "jquery": "3.6.0",
diff --git a/static/src/js/ie11-deterrent.js b/static/src/js/ie11-deterrent.js
new file mode 100644
index 0000000..392d476
--- /dev/null
+++ b/static/src/js/ie11-deterrent.js
@@ -0,0 +1,6 @@
+const { isIE11 } = require('@ledge/is-ie-11');
+
+if (isIE11()) {
+  // Stop using internet explorer!
+  window.location.assign('https://stopinternetexplorer.com/');
+}