diff --git a/scripts/check_urls.sh b/scripts/check_urls.sh
new file mode 100755
index 00000000000..8a8ca2a5815
--- /dev/null
+++ b/scripts/check_urls.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+set -euo pipefail
+
+status=0
+green='\e[1;32m'; red='\e[1;31m'; cyan='\e[1;36m'; yellow='\e[1;33m'; reset='\e[0m'
+last_filepath=
+
+while IFS=: read -r filepath url; do
+  if [ "$filepath" != "$last_filepath" ]; then
+    printf '\n%s:\n' "$filepath"
+    last_filepath=$filepath
+  fi
+  code=$(curl -gsLm30 -o /dev/null -w "%{http_code}" -I "$url") || code=000
+  if [ "$code" -ge 400 ]; then
+    code=$(curl -gsLm30 -o /dev/null -w "%{http_code}" -r 0-0 -A "Mozilla/5.0" "$url") || code=000
+  fi
+  if [ "$code" -ge 200 ] && [ "$code" -lt 400 ]; then
+    printf "${green}%s${reset} ${cyan}%s${reset}\n" "$code" "$url"
+  else
+    printf "${red}%s${reset} ${yellow}%s${reset}\n" "$code" "$url" >&2
+    status=1
+  fi
+done < <(
+  git --no-pager grep --no-color -I -o -E \
+    'https?://[^[:space:]<>\")\{\(\$]+' \
+    -- '*' \
+    ':(exclude).*' \
+    ':(exclude)**/.*' \
+    ':(exclude)**/*.lock' \
+    ':(exclude)**/*.svg' \
+    ':(exclude)**/*.xml' \
+    ':(exclude)**/third-party/**' \
+  | sed 's/[[:punct:]]*$//' \
+  | grep -Ev '://(0\.0\.0\.0|127\.0\.0\.1|localhost)([:/])' \
+  || true
+)
+
+exit $status