diff --git a/h5bp/web_performance/cache-control.conf b/h5bp/web_performance/cache-control.conf
new file mode 100644
index 0000000..1864fe8
--- /dev/null
+++ b/h5bp/web_performance/cache-control.conf
@@ -0,0 +1,27 @@
+# ----------------------------------------------------------------------
+# | Cache control                                                      |
+# ----------------------------------------------------------------------
+
+# TBD
+#
+# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control
+
+map $sent_http_content_type $cache_control {
+  # (1)
+  default           "private, must-revalidate";
+
+  # (2)
+  ~*text/html       "public, immutable";
+  ~*text/css        "public, immutable";
+  ~*text/javascript "public, immutable";
+  ~*xml             "public, immutable";
+  ~*application/pdf "public, immutable";
+
+  # (3)
+  ~*audio/          "public, immutable";
+  ~*image/          "public, immutable";
+  ~*font/           "public, immutable";
+  ~*video/          "public, immutable";
+}
+
+add_header Cache-Control $cache_control;