diff --git a/nginx.example.conf b/nginx.example.conf
index 50b8989..79984c0 100644
--- a/nginx.example.conf
+++ b/nginx.example.conf
@@ -6,6 +6,26 @@ server {
 
     client_max_body_size 60m;
 
+    # ihasmail serves its bundle uncompressed and leaves this to the proxy, so
+    # without these directives the browser downloads about 915 KB where 307 KB
+    # would do. text/event-stream is deliberately absent from gzip_types: the
+    # push stream must not be compressed or buffered.
+    gzip on;
+    gzip_vary on;
+    gzip_proxied any;
+    gzip_comp_level 5;
+    gzip_min_length 1024;
+    # ihasmail serves scripts as text/javascript, so listing only
+    # application/javascript silently leaves the largest asset uncompressed.
+    gzip_types
+        application/javascript
+        application/json
+        application/manifest+json
+        image/svg+xml
+        text/css
+        text/javascript
+        text/plain;
+
     location / {
         proxy_pass http://127.0.0.1:8080;
         proxy_http_version 1.1;