diff --git a/html/index.html b/html/index.html
index f939760..a4c4405 100644
--- a/html/index.html
+++ b/html/index.html
@@ -924,6 +924,5 @@
     <script src="geomag2020.js"></script>
     <script src="script.js"></script>
 
-    <!-- adsbexchange ads placeholder -->
   </body>
 </html>
diff --git a/nginx.conf b/nginx.conf
index 704101a..0f83b07 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -38,7 +38,7 @@ location /INSTANCE/globe_history/ {
 location /INSTANCE/chunks/ {
   alias /run/SERVICE/;
   location ~ chunk_.*\.gz$ {
-    add_header Cache-Control "public, max-age=1209600";
+    add_header Cache-Control "public, max-age=86400";
     add_header Content-Type "application/json";
     add_header Content-Encoding "gzip";
   }
@@ -60,17 +60,17 @@ location /INSTANCE {
 
   location ~ db-.*\.js$ {
     gzip off;
-    add_header Cache-Control "public, max-age=1209600";
+    add_header Cache-Control "public, max-age=7776000";
     add_header Content-Encoding "gzip";
   }
   location /INSTANCE/images {
-    add_header Cache-Control "public, max-age=1209600";
+    add_header Cache-Control "public, max-age=7776000";
   }
   location /INSTANCE/flags-tiny {
-    add_header Cache-Control "public, max-age=1209600";
+    add_header Cache-Control "public, max-age=7776000";
   }
   location ~ .*\.gif$ {
-    add_header Cache-Control "public, max-age=1209600";
+    add_header Cache-Control "public, max-age=7776000";
   }
   location ~ index.html$ {
     add_header Cache-Control "public, max-age=300";
@@ -79,9 +79,9 @@ location /INSTANCE {
     add_header Cache-Control "public, max-age=10";
   }
   location ~ .*\.js$ {
-    add_header Cache-Control "public, max-age=1209600";
+    add_header Cache-Control "public, max-age=7776000";
   }
   location ~ .*\.css$ {
-    add_header Cache-Control "public, max-age=1209600";
+    add_header Cache-Control "public, max-age=7776000";
   }
 }