diff --git a/static/_headers b/static/_headers
new file mode 100644
index 0000000..51cb58c
--- /dev/null
+++ b/static/_headers
@@ -0,0 +1,7 @@
+# Immutable assets (hashed filenames)
+/_app/immutable/*
+  Cache-Control: public, max-age=31536000, immutable
+
+# HTML and other assets - cache 1 hour, then revalidate
+/*
+  Cache-Control: public, max-age=3600, must-revalidate