diff --git a/cspell-allow-list.txt b/cspell-allow-list.txt
index 4fdce36b5..a10f16fac 100644
--- a/cspell-allow-list.txt
+++ b/cspell-allow-list.txt
@@ -355,6 +355,7 @@ nodeport
 noeviction
 nofail
 noheadings
+noindex
 nonexistenturl
 nonprivileged
 noout
diff --git a/vercel.json b/vercel.json
index e47d609c2..f5c404f23 100644
--- a/vercel.json
+++ b/vercel.json
@@ -1,5 +1,14 @@
 {
 	"$schema": "https://openapi.vercel.sh/vercel.json",
 	"fluid": true,
-	"ignoreCommand": "sh dev/vercel-ignore-build.sh"
+	"ignoreCommand": "sh dev/vercel-ignore-build.sh",
+	"headers": [
+		{
+			"source": "/(.*)",
+			"has": [
+				{"type": "host", "value": "^\\d+\\.\\d+\\.sourcegraph\\.com$"}
+			],
+			"headers": [{"key": "X-Robots-Tag", "value": "noindex, nofollow"}]
+		}
+	]
 }