diff --git a/rewrite/nginx/cloudfare_real_ip.conf b/rewrite/nginx/cloudfare_real_ip.conf
index c3ece8365..ff540c422 100644
--- a/rewrite/nginx/cloudfare_real_ip.conf
+++ b/rewrite/nginx/cloudfare_real_ip.conf
@@ -1,4 +1,6 @@
 location / {
+
+	# https://www.cloudflare.com/zh-cn/ips/
     set_real_ip_from 103.21.244.0/22;
     set_real_ip_from 103.22.200.0/22;
     set_real_ip_from 103.31.4.0/22;
@@ -24,6 +26,7 @@ location / {
     # use any of the following two
     real_ip_header CF-Connecting-IP;
     #real_ip_header X-Forwarded-For;
+
      
 	index index.html index.php; 
 	if (-f $request_filename/index.html){