diff --git a/http/headers/Critical-CH.json b/http/headers/Critical-CH.json
new file mode 100644
index 0000000000000..56060aead229b
--- /dev/null
+++ b/http/headers/Critical-CH.json
@@ -0,0 +1,40 @@
+{
+  "http": {
+    "headers": {
+      "Critical-CH": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Critical-CH",
+          "spec_url": "https://datatracker.ietf.org/doc/html/draft-davidben-http-client-hint-reliability#name-the-critical-ch-response-he",
+          "support": {
+            "chrome": {
+              "version_added": "91"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}