diff --git a/docker/server/headers.include b/docker/server/headers.include
index ffb49b9..e77892f 100644
--- a/docker/server/headers.include
+++ b/docker/server/headers.include
@@ -10,3 +10,7 @@ add_header X-Content-Type-Options "nosniff" always;
 # Disallow the site to be rendered within a frame (clickjacking
 # protection)
 add_header X-Frame-Options "DENY" always;
+
+# Surrogate Control sets CDN caching behavior.
+add_header Surrogate-Control "public, max-age=86400";
+add_header Cache-Control "public, max-age=120";