diff --git a/production/nginx-mempool.conf b/production/nginx-mempool.conf
index 20a2469e0..d28f7f456 100644
--- a/production/nginx-mempool.conf
+++ b/production/nginx-mempool.conf
@@ -31,10 +31,15 @@
 		add_header X-Frame-Options $frameOptions;
 		add_header Content-Security-Policy $contentSecurityPolicy;
 
-		# fallback
+		# fallback for all URLs i.e. /address/foo /tx/foo /block/000
 		location / {
 			#return 302 https://mempool.space/$request_uri;
-			try_files /$lang/$uri /$lang/$uri/ $uri $uri/ /en-US/$uri /$lang/index.html /en-US/index.html =404;
+			try_files /$lang/$uri /$lang/$uri/ $uri $uri/ /en-US/$uri @index;
+# /$lang/index.html /en-US/index.html =404;
+		}
+		location @index {
+			add_header Cache-Control must-revalidate;
+			try_files /$lang/index.html /en-US/index.html =404;
 		}
 
 		# location block using regex are matched in order