diff --git a/client/web/src/api.ts b/client/web/src/api.ts
index 3d41605dc..b6c0c4415 100644
--- a/client/web/src/api.ts
+++ b/client/web/src/api.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 let csrfToken: string
 let synoToken: string | undefined // required for synology API requests
 let unraidCsrfToken: string | undefined // required for unraid POST requests (#8062)
diff --git a/client/web/src/components/acl-tag.tsx b/client/web/src/components/acl-tag.tsx
index 94522befe..cb34375ed 100644
--- a/client/web/src/components/acl-tag.tsx
+++ b/client/web/src/components/acl-tag.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React from "react"
 import Badge from "src/ui/badge"
diff --git a/client/web/src/components/app.tsx b/client/web/src/components/app.tsx
index 232bd4a6c..bfdbeea46 100644
--- a/client/web/src/components/app.tsx
+++ b/client/web/src/components/app.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { useEffect } from "react"
 import { ReactComponent as TailscaleIcon } from "src/assets/icons/tailscale-icon.svg"
diff --git a/client/web/src/components/exit-node-selector.tsx b/client/web/src/components/exit-node-selector.tsx
index 0e64f80f1..8083e0660 100644
--- a/client/web/src/components/exit-node-selector.tsx
+++ b/client/web/src/components/exit-node-selector.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { useCallback, useMemo, useRef, useState } from "react"
 import { ReactComponent as Check } from "src/assets/icons/check.svg"
diff --git a/client/web/src/components/login-toggle.tsx b/client/web/src/components/login-toggle.tsx
index bb291268e..4575ab753 100644
--- a/client/web/src/components/login-toggle.tsx
+++ b/client/web/src/components/login-toggle.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { useCallback, useEffect, useState } from "react"
 import { ReactComponent as ChevronDown } from "src/assets/icons/chevron-down.svg"
diff --git a/client/web/src/components/update-available.tsx b/client/web/src/components/update-available.tsx
index 18474d866..6c8d83f4b 100644
--- a/client/web/src/components/update-available.tsx
+++ b/client/web/src/components/update-available.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import React from "react"
 import { VersionInfo } from "src/hooks/self-update"
 import { Link } from "wouter"
diff --git a/client/web/src/components/views/device-details-view.tsx b/client/web/src/components/views/device-details-view.tsx
index d792372fe..95fc97c93 100644
--- a/client/web/src/components/views/device-details-view.tsx
+++ b/client/web/src/components/views/device-details-view.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React from "react"
 import { apiFetch } from "src/api"
diff --git a/client/web/src/components/views/home-view.tsx b/client/web/src/components/views/home-view.tsx
index 2e8c73210..3b349ce92 100644
--- a/client/web/src/components/views/home-view.tsx
+++ b/client/web/src/components/views/home-view.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React from "react"
 import { ReactComponent as ArrowRight } from "src/assets/icons/arrow-right.svg"
diff --git a/client/web/src/components/views/login-view.tsx b/client/web/src/components/views/login-view.tsx
index 498ff6c61..eb25f8739 100644
--- a/client/web/src/components/views/login-view.tsx
+++ b/client/web/src/components/views/login-view.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import React, { useCallback, useState } from "react"
 import { apiFetch } from "src/api"
 import { ReactComponent as TailscaleIcon } from "src/assets/icons/tailscale-icon.svg"
diff --git a/client/web/src/components/views/ssh-view.tsx b/client/web/src/components/views/ssh-view.tsx
index e3d1a03f2..e36c7c4d6 100644
--- a/client/web/src/components/views/ssh-view.tsx
+++ b/client/web/src/components/views/ssh-view.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import React from "react"
 import { PrefsUpdate } from "src/hooks/node-data"
 import Toggle from "src/ui/toggle"
diff --git a/client/web/src/components/views/updating-view.tsx b/client/web/src/components/views/updating-view.tsx
index 660eb725c..dc1d692a7 100644
--- a/client/web/src/components/views/updating-view.tsx
+++ b/client/web/src/components/views/updating-view.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import React from "react"
 import { ReactComponent as CheckCircleIcon } from "src/assets/icons/check-circle.svg"
 import { ReactComponent as XCircleIcon } from "src/assets/icons/x-circle.svg"
diff --git a/client/web/src/hooks/auth.ts b/client/web/src/hooks/auth.ts
index 0f30f18f3..1b51dc1ab 100644
--- a/client/web/src/hooks/auth.ts
+++ b/client/web/src/hooks/auth.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import { useCallback, useEffect, useState } from "react"
 import { apiFetch, setSynoToken } from "src/api"
 
diff --git a/client/web/src/hooks/exit-nodes.ts b/client/web/src/hooks/exit-nodes.ts
index 68133331e..f4e0e6405 100644
--- a/client/web/src/hooks/exit-nodes.ts
+++ b/client/web/src/hooks/exit-nodes.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import { useEffect, useMemo, useState } from "react"
 import { apiFetch } from "src/api"
 
diff --git a/client/web/src/hooks/node-data.ts b/client/web/src/hooks/node-data.ts
index 470ef1fbe..93bb8a5e9 100644
--- a/client/web/src/hooks/node-data.ts
+++ b/client/web/src/hooks/node-data.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import { useCallback, useEffect, useState } from "react"
 import { apiFetch, setUnraidCsrfToken } from "src/api"
 import { ExitNode } from "src/hooks/exit-nodes"
diff --git a/client/web/src/hooks/self-update.ts b/client/web/src/hooks/self-update.ts
index 8c12a3709..19c322ba0 100644
--- a/client/web/src/hooks/self-update.ts
+++ b/client/web/src/hooks/self-update.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import { useCallback, useEffect, useState } from "react"
 import { apiFetch } from "src/api"
 
diff --git a/client/web/src/index.tsx b/client/web/src/index.tsx
index 6840d2488..ef5a65a44 100644
--- a/client/web/src/index.tsx
+++ b/client/web/src/index.tsx
@@ -1,3 +1,13 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+// Preserved js license comment for web client app.
+/**
+ * @license
+ * Copyright (c) Tailscale Inc & AUTHORS
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
 import React from "react"
 import { createRoot } from "react-dom/client"
 import App from "src/components/app"
diff --git a/client/web/src/ui/badge.tsx b/client/web/src/ui/badge.tsx
index ca211822c..c0caa6403 100644
--- a/client/web/src/ui/badge.tsx
+++ b/client/web/src/ui/badge.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { HTMLAttributes } from "react"
 
diff --git a/client/web/src/ui/collapsible.tsx b/client/web/src/ui/collapsible.tsx
index 51faa9aad..e954ce008 100644
--- a/client/web/src/ui/collapsible.tsx
+++ b/client/web/src/ui/collapsible.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import * as Primitive from "@radix-ui/react-collapsible"
 import React, { useState } from "react"
 import { ReactComponent as ChevronDown } from "src/assets/icons/chevron-down.svg"
diff --git a/client/web/src/ui/input.tsx b/client/web/src/ui/input.tsx
index 2cba2251e..756e0fc2e 100644
--- a/client/web/src/ui/input.tsx
+++ b/client/web/src/ui/input.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { InputHTMLAttributes } from "react"
 
diff --git a/client/web/src/ui/popover.tsx b/client/web/src/ui/popover.tsx
index 7f483c266..588a4d472 100644
--- a/client/web/src/ui/popover.tsx
+++ b/client/web/src/ui/popover.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import * as PopoverPrimitive from "@radix-ui/react-popover"
 import cx from "classnames"
 import React, { ReactNode } from "react"
diff --git a/client/web/src/ui/profile-pic.tsx b/client/web/src/ui/profile-pic.tsx
index 8f9c23cdf..343fb29b4 100644
--- a/client/web/src/ui/profile-pic.tsx
+++ b/client/web/src/ui/profile-pic.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React from "react"
 
diff --git a/client/web/src/ui/search-input.tsx b/client/web/src/ui/search-input.tsx
index cd51d9269..4d919e07d 100644
--- a/client/web/src/ui/search-input.tsx
+++ b/client/web/src/ui/search-input.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { forwardRef, InputHTMLAttributes } from "react"
 import { ReactComponent as Search } from "src/assets/icons/search.svg"
diff --git a/client/web/src/ui/spinner.tsx b/client/web/src/ui/spinner.tsx
index 989d56b23..51f6e887b 100644
--- a/client/web/src/ui/spinner.tsx
+++ b/client/web/src/ui/spinner.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { HTMLAttributes } from "react"
 
diff --git a/client/web/src/ui/toggle.tsx b/client/web/src/ui/toggle.tsx
index 312d963bb..492283005 100644
--- a/client/web/src/ui/toggle.tsx
+++ b/client/web/src/ui/toggle.tsx
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import cx from "classnames"
 import React, { ChangeEvent } from "react"
 
diff --git a/cmd/tsconnect/src/lib/ssh.ts b/cmd/tsconnect/src/lib/ssh.ts
index afbcdb895..9c6f71aee 100644
--- a/cmd/tsconnect/src/lib/ssh.ts
+++ b/cmd/tsconnect/src/lib/ssh.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
 import { Terminal, ITerminalOptions } from "xterm"
 import { FitAddon } from "xterm-addon-fit"
 import { WebLinksAddon } from "xterm-addon-web-links"
diff --git a/scripts/check_license_headers.sh b/scripts/check_license_headers.sh
index 89a243b63..9a5ae02f5 100755
--- a/scripts/check_license_headers.sh
+++ b/scripts/check_license_headers.sh
@@ -26,7 +26,7 @@ if [ $# != 1 ]; then
 fi
 
 fail=0
-for file in $(find $1 -name '*.go' -not -path '*/.git/*'); do
+for file in $(find $1 \( -name '*.go' -or -name '*.tsx' -or -name '*.ts' -not -name '*.config.ts' \) -not -path '*/.git/*' -not -path '*/node_modules/*'); do
     case $file in
         $1/tempfork/*)
             # Skip, tempfork of third-party code