diff --git a/features/host-context.yml b/features/host-context.yml
new file mode 100644
index 00000000000..c5660295555
--- /dev/null
+++ b/features/host-context.yml
@@ -0,0 +1,8 @@
+name: host-context
+description: The `:host-context()` CSS pseudo-class selects the containing element of the shadow tree in which it is used if that element or an ancestor matches the provided selector.
+spec: https://drafts.csswg.org/css-scoping-1/#host-selector
+group:
+  - selectors
+  - web-components
+compat_features:
+  - css.selectors.host-context
diff --git a/features/host-context.yml.dist b/features/host-context.yml.dist
new file mode 100644
index 00000000000..edb77f15c7e
--- /dev/null
+++ b/features/host-context.yml.dist
@@ -0,0 +1,11 @@
+# Generated from: host-context.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "54"
+    chrome_android: "54"
+    edge: "79"
+compat_features:
+  - css.selectors.host-context
diff --git a/features/host.yml b/features/host.yml
new file mode 100644
index 00000000000..df1d9a8e306
--- /dev/null
+++ b/features/host.yml
@@ -0,0 +1,9 @@
+name: Host
+description: The `:host` CSS pseudo-class selects the containing element of the shadow tree in which it is used. The `:host()` CSS pseudo-class selects the that element only if it matches the provided selector.
+spec: https://drafts.csswg.org/css-scoping-1/#host-selector
+group:
+  - selectors
+  - web-components
+compat_features:
+  - css.selectors.host
+  - css.selectors.hostfunction
diff --git a/features/host.yml.dist b/features/host.yml.dist
new file mode 100644
index 00000000000..f42d11af08a
--- /dev/null
+++ b/features/host.yml.dist
@@ -0,0 +1,18 @@
+# Generated from: host.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2020-01-15
+  baseline_high_date: 2022-07-15
+  support:
+    chrome: "54"
+    chrome_android: "54"
+    edge: "79"
+    firefox: "63"
+    firefox_android: "63"
+    safari: "10"
+    safari_ios: "10"
+compat_features:
+  - css.selectors.host
+  - css.selectors.hostfunction