diff --git a/config/gni/devtools_grd_files.gni b/config/gni/devtools_grd_files.gni
index 4d8f800c0a..509b28e0a1 100644
--- a/config/gni/devtools_grd_files.gni
+++ b/config/gni/devtools_grd_files.gni
@@ -756,6 +756,7 @@ grd_files_debug_sources = [
   "front_end/models/issues_manager/SharedArrayBufferIssue.js",
   "front_end/models/issues_manager/SourceFrameIssuesManager.js",
   "front_end/models/issues_manager/TrustedWebActivityIssue.js",
+  "front_end/models/javascript_metadata/DOMPinnedProperties.js",
   "front_end/models/javascript_metadata/JavaScriptMetadata.js",
   "front_end/models/javascript_metadata/NativeFunctions.js",
   "front_end/models/logs/LogManager.js",
diff --git a/front_end/core/common/JavaScriptMetaData.ts b/front_end/core/common/JavaScriptMetaData.ts
index 880df25891..f70f133f49 100644
--- a/front_end/core/common/JavaScriptMetaData.ts
+++ b/front_end/core/common/JavaScriptMetaData.ts
@@ -2,6 +2,26 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+export interface DOMPinnedWebIDLProp {
+  global?: boolean;
+  specs?: number;
+  rules?: Array<DOMPinnedWebIDLRule>;
+}
+
+export interface DOMPinnedWebIDLType {
+  inheritance?: string;
+  includes?: Array<string>;
+  props?: {
+    [PropName: string]: DOMPinnedWebIDLProp,
+  };
+  rules?: Array<DOMPinnedWebIDLRule>;
+}
+
+export interface DOMPinnedWebIDLRule {
+  when: string;
+  is: string;
+}
+
 export interface JavaScriptMetaData {
   signaturesForNativeFunction(name: string): string[][]|null;
 
diff --git a/front_end/models/javascript_metadata/BUILD.gn b/front_end/models/javascript_metadata/BUILD.gn
index 8d99d5f5b6..009262f89b 100644
--- a/front_end/models/javascript_metadata/BUILD.gn
+++ b/front_end/models/javascript_metadata/BUILD.gn
@@ -8,6 +8,7 @@ import("../visibility.gni")
 
 devtools_module("javascript_metadata") {
   sources = [
+    "DOMPinnedProperties.ts",
     "JavaScriptMetadata.ts",
     "NativeFunctions.js",
   ]
diff --git a/front_end/models/javascript_metadata/JavaScriptMetadata.ts b/front_end/models/javascript_metadata/JavaScriptMetadata.ts
index deca542c5e..9e4ef5c0ef 100644
--- a/front_end/models/javascript_metadata/JavaScriptMetadata.ts
+++ b/front_end/models/javascript_metadata/JavaScriptMetadata.ts
@@ -5,10 +5,13 @@
 import type * as Common from '../../core/common/common.js';
 
 import {NativeFunctions} from './NativeFunctions.js';
+import * as DOMPinnedProperties from './DOMPinnedProperties.js';
 
 let javaScriptMetadataInstance: JavaScriptMetadataImpl;
 
 export class JavaScriptMetadataImpl implements Common.JavaScriptMetaData.JavaScriptMetaData {
+  static readonly domPinnedProperties = DOMPinnedProperties;
+
   private readonly uniqueFunctions: Map<string, string[][]>;
   private readonly receiverMethods: Map<string, Map<string, string[][]>>;
   static instance(opts: {
diff --git a/front_end/models/javascript_metadata/javascript_metadata.ts b/front_end/models/javascript_metadata/javascript_metadata.ts
index a13c9f9980..f0e09d0476 100644
--- a/front_end/models/javascript_metadata/javascript_metadata.ts
+++ b/front_end/models/javascript_metadata/javascript_metadata.ts
@@ -3,12 +3,15 @@
 // found in the LICENSE file.
 
 import './NativeFunctions.js';
+import './DOMPinnedProperties.js';
 import './JavaScriptMetadata.js';
 
+import * as DOMPinnedProperties from './DOMPinnedProperties.js';
 import * as JavaScriptMetadata from './JavaScriptMetadata.js';
 import * as NativeFunctions from './NativeFunctions.js';
 
 export {
+  DOMPinnedProperties,
   JavaScriptMetadata,
   NativeFunctions,
 };