diff --git a/88-tar1090.conf b/88-tar1090.conf
index 7c4919b..63ebd76 100644
--- a/88-tar1090.conf
+++ b/88-tar1090.conf
@@ -11,6 +11,13 @@ url.redirect += (
   "^/INSTANCE$" => "/INSTANCE/"
 )
 
+$HTTP["url"] =~ "^/INSTANCE/traces/" {
+    setenv.add-response-header += (
+        "Cache-Control" => "public, max-age=10",
+        "Content-Encoding" => "gzip",
+        "Content-Type" => "application/json",
+        )
+}
 $HTTP["url"] =~ "^/INSTANCE/chunks/chunk_.*gz$" {
     setenv.add-response-header += (
         "Access-Control-Allow-Origin" => "*",
diff --git a/html/script.js b/html/script.js
index 934733b..2bf1f6c 100644
--- a/html/script.js
+++ b/html/script.js
@@ -2091,8 +2091,8 @@ function selectPlaneByHex(hex, options) {
 
 
     if (!options.noFetch && globeIndex && hex) {
-        var URL1 = 'data/traces/'+ hex.slice(-2) + '/trace_recent_' + hex + '.json';
-        var URL2 = 'data/traces/'+ hex.slice(-2) + '/trace_full_' + hex + '.json';
+        var URL1 = 'data/traces/'+ hex.slice(-2) + '/trace_recent_' + hex + '.json.gz';
+        var URL2 = 'data/traces/'+ hex.slice(-2) + '/trace_full_' + hex + '.json.gz';
         //console.log('Requesting trace: ' + hex);
 
         var req1 = $.ajax({ url: URL1,
diff --git a/nginx.conf b/nginx.conf
index c12d125..30f7d2b 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -4,8 +4,10 @@ location /INSTANCE/data/ {
   location ~ aircraft\.json$ {
     add_header Cache-Control "public, max-age=0";
   }
-  location ~ trace_.*\.json$ {
+  location /INSTANCE/data/traces/ {
     add_header Cache-Control "public, max-age=10";
+    add_header Content-Type "application/json";
+    add_header Content-Encoding "gzip";
   }
   location ~ globe_.*\.json$ {
     add_header Cache-Control "public, max-age=2";
diff --git a/nginx_webroot.conf b/nginx_webroot.conf
index 22d57ce..95deb51 100644
--- a/nginx_webroot.conf
+++ b/nginx_webroot.conf
@@ -4,8 +4,10 @@ location /data/ {
   location ~ aircraft\.json$ {
     add_header Cache-Control "public, max-age=0";
   }
-  location ~ trace_.*\.json$ {
+  location /data/traces/ {
     add_header Cache-Control "public, max-age=10";
+    add_header Content-Type "application/json";
+    add_header Content-Encoding "gzip";
   }
   location ~ globe_.*\.json$ {
     add_header Cache-Control "public, max-age=2";