diff --git a/nginx-mempool.conf b/nginx-mempool.conf
index 7514a6dc5..9e441f277 100644
--- a/nginx-mempool.conf
+++ b/nginx-mempool.conf
@@ -5,26 +5,35 @@
 
 	index index.html;
 
+	# enable browser and proxy caching
+	add_header Cache-Control "public, no-transform";
+
+	# vary cache if user changes language preference
+	add_header Vary Accept-Language;
+	add_header Vary Cookie;
+
 	# fallback for all URLs i.e. /address/foo /tx/foo /block/000
 	location / {
-		add_header Vary Cookie;
 		try_files /$lang/$uri /$lang/$uri/ $uri $uri/ /en-US/$uri @index-redirect;
+		expires 10m;
+	}
+	location /resources {
+		try_files /$lang/$uri /$lang/$uri/ $uri $uri/ /en-US/$uri @index-redirect;
+		expires 1h;
 	}
 	location @index-redirect {
-		add_header Vary Cookie;
 		rewrite (.*) /$lang/index.html;
 	}
 
 	# location block using regex are matched in order
 
 	# used to rewrite resources from /<lang>/ to /en-US/
-	location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|ka|no|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh)/resources/ {
-		add_header Vary Cookie;
+	location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh|hi)/resources/ {
 		rewrite ^/[a-zA-Z-]*/resources/(.*) /en-US/resources/$1;
 	}
 	# used for cookie override
-	location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|ka|no|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh)/ {
-		add_header Vary Cookie;
+	location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hi|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|ka|no|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh)/ {
+	location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh|hi)/ {
 		try_files $uri $uri/ /$1/index.html =404;
 	}
 
diff --git a/nginx.conf b/nginx.conf
index 4b932adee..d091c37fe 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -93,6 +93,7 @@ http {
 	        ~*^nb nb;
 	        ~*^pl pl;
 	        ~*^pt pt;
+	        ~*^ru ru;
 	        ~*^sl sl;
 	        ~*^fi fi;
 	        ~*^sv sv;
@@ -100,7 +101,7 @@ http {
 	        ~*^uk uk;
 	        ~*^vi vi;
 	        ~*^zh zh;
-	        ~*^ru ru;
+	        ~*^hi hi;
 	}
 
 	map $cookie_lang $lang {
@@ -123,6 +124,7 @@ http {
 	        ~*^nb nb;
 	        ~*^pl pl;
 	        ~*^pt pt;
+	        ~*^ru ru;
 	        ~*^sl sl;
 	        ~*^fi fi;
 	        ~*^sv sv;
@@ -130,7 +132,7 @@ http {
 	        ~*^uk uk;
 	        ~*^vi vi;
 	        ~*^zh zh;
-	        ~*^ru ru;
+	        ~*^hi hi;
 	}
 
 	server {
diff --git a/production/nginx-mempool.conf b/production/nginx-mempool.conf
index 8a5759bd4..e2474199f 100644
--- a/production/nginx-mempool.conf
+++ b/production/nginx-mempool.conf
@@ -2,9 +2,13 @@
 
 		index index.html;
 
+		# tor onion redirect
 		add_header Onion-Location http://mempoolhqx4isw62xs7abwphsq7ldayuidyx2v2oethdhhj6mlo2r6ad.onion$request_uri;
+
+		# HSTS preload enable
 		add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
 
+		# generate frame configuration from origin header
 		set $frameOptions "DENY";
 		set $contentSecurityPolicy "frame-ancestors 'none'";
 		if ($http_referer ~ ^https://mempool.space/)
@@ -17,47 +21,44 @@
 			set $frameOptions "ALLOW-FROM https://mempool.ninja";
 			set $contentSecurityPolicy "frame-ancestors https://mempool.ninja";
 		}
-		if ($http_referer ~ ^https://node100.bitcoin.wiz.biz/)
-		{
-			set $frameOptions "ALLOW-FROM https://node100.bitcoin.wiz.biz";
-			set $contentSecurityPolicy "frame-ancestors https://node100.bitcoin.wiz.biz";
-		}
 		if ($http_referer ~ ^https://wiz.biz/)
 		{
 			set $frameOptions "ALLOW-FROM https://wiz.biz";
 			set $contentSecurityPolicy "frame-ancestors https://wiz.biz";
 		}
 
+		# restrict usage of frames
 		add_header X-Frame-Options $frameOptions;
 		add_header Content-Security-Policy $contentSecurityPolicy;
 
+		# enable browser and proxy caching
+		add_header Cache-Control "public, no-transform";
+
+		# vary cache if user changes language preference
+		add_header Vary Accept-Language;
+		add_header Vary Cookie;
+
 		# fallback for all URLs i.e. /address/foo /tx/foo /block/000
 		location / {
 			try_files /$lang/$uri /$lang/$uri/ $uri $uri/ /en-US/$uri @index-redirect;
-			add_header Cache-Control "public, no-transform";
-			add_header Vary Cookie;
 			expires 10m;
 		}
 		location /resources {
 			try_files /$lang/$uri /$lang/$uri/ $uri $uri/ /en-US/$uri @index-redirect;
-			add_header Cache-Control "public, no-transform";
-			add_header Vary Cookie;
 			expires 1h;
 		}
 		location @index-redirect {
-			add_header Vary Cookie;
 			rewrite (.*) /$lang/index.html;
 		}
 
 		# location block using regex are matched in order
 
 		# used to rewrite resources from /<lang>/ to /en-US/
-		location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|ka|no|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh)/resources/ {
+		location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh|hi)/resources/ {
 			rewrite ^/[a-zA-Z-]*/resources/(.*) /en-US/resources/$1;
 		}
 		# used for cookie override
-		location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|ka|no|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh)/ {
-			add_header Vary Cookie;
+		location ~ ^/(ar|bg|bs|ca|cs|da|de|et|el|es|eo|eu|fa|fr|gl|ko|hr|id|it|he|ka|lv|lt|hu|mk|ms|nl|ja|nb|nn|pl|pt|pt-BR|ro|ru|sk|sl|sr|sh|fi|sv|th|tr|uk|vi|zh|hi)/ {
 			try_files $uri $uri/ /$1/index.html =404;
 		}
 
diff --git a/production/nginx.conf b/production/nginx.conf
index dc68ef6b6..2b440e2fe 100644
--- a/production/nginx.conf
+++ b/production/nginx.conf
@@ -104,6 +104,7 @@ http {
 	        ~*^nb nb;
 	        ~*^pl pl;
 	        ~*^pt pt;
+	        ~*^ru ru;
 	        ~*^sl sl;
 	        ~*^fi fi;
 	        ~*^sv sv;
@@ -111,7 +112,7 @@ http {
 	        ~*^uk uk;
 	        ~*^vi vi;
 	        ~*^zh zh;
-	        ~*^ru ru;
+	        ~*^hi hi;
 	}
 
 	map $cookie_lang $lang {
@@ -134,6 +135,7 @@ http {
 	        ~*^nb nb;
 	        ~*^pl pl;
 	        ~*^pt pt;
+	        ~*^ru ru;
 	        ~*^sl sl;
 	        ~*^fi fi;
 	        ~*^sv sv;
@@ -141,7 +143,7 @@ http {
 	        ~*^uk uk;
 	        ~*^vi vi;
 	        ~*^zh zh;
-	        ~*^ru ru;
+	        ~*^hi hi;
 	}
 
 	upstream electrs-mainnet {