diff --git a/http/headers/Sec-CH-Prefers-Color-Scheme.json b/http/headers/Sec-CH-Prefers-Color-Scheme.json
new file mode 100644
index 0000000000000..46012be555062
--- /dev/null
+++ b/http/headers/Sec-CH-Prefers-Color-Scheme.json
@@ -0,0 +1,41 @@
+{
+ "http": {
+ "headers": {
+ "Sec-CH-Prefers-Color-Scheme": {
+ "__compat": {
+ "description": "Sec-CH-Prefers-Color-Scheme
request header",
+ "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme",
+ "spec_url": "https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-color-scheme",
+ "support": {
+ "chrome": {
+ "version_added": "93"
+ },
+ "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
+ }
+ }
+ }
+ }
+ }
+}
diff --git a/http/headers/Sec-CH-Prefers-Reduced-Motion.json b/http/headers/Sec-CH-Prefers-Reduced-Motion.json
new file mode 100644
index 0000000000000..1eb4cc5807c73
--- /dev/null
+++ b/http/headers/Sec-CH-Prefers-Reduced-Motion.json
@@ -0,0 +1,41 @@
+{
+ "http": {
+ "headers": {
+ "Sec-CH-Prefers-Reduced-Motion": {
+ "__compat": {
+ "description": "Sec-CH-Prefers-Reduced-Motion
request header",
+ "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Motion",
+ "spec_url": "https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-reduced-motion",
+ "support": {
+ "chrome": {
+ "version_added": "108"
+ },
+ "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
+ }
+ }
+ }
+ }
+ }
+}