diff --git a/src/common.ts b/src/common.ts
index d17da402..6affbd23 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -38,12 +38,17 @@ export interface Headers {
 }
 export type GaxiosPromise<T = any> = Promise<GaxiosResponse<T>>;
 
+export interface GaxiosXMLHttpRequest {
+  responseURL: string;
+}
+
 export interface GaxiosResponse<T = any> {
   config: GaxiosOptions;
   data: T;
   status: number;
   statusText: string;
   headers: Headers;
+  request: GaxiosXMLHttpRequest;
 }
 
 /**
diff --git a/src/gaxios.ts b/src/gaxios.ts
index fdf5101d..7021009b 100644
--- a/src/gaxios.ts
+++ b/src/gaxios.ts
@@ -250,6 +250,11 @@ export class Gaxios {
       headers,
       status: res.status,
       statusText: res.statusText,
+
+      // XMLHttpRequestLike
+      request: {
+        responseURL: res.url,
+      },
     };
   }
 }
diff --git a/test/test.getch.ts b/test/test.getch.ts
index 3af418b8..e549f2bb 100644
--- a/test/test.getch.ts
+++ b/test/test.getch.ts
@@ -121,6 +121,7 @@ describe('🥁 configuration options', () => {
     const res = await request({url});
     scopes.forEach(x => x.done());
     assert.deepStrictEqual(res.data, body);
+    assert.strictEqual(res.request.responseURL, `${url}/foo`);
   });
 
   it('should support disabling redirects', async () => {
@@ -139,6 +140,9 @@ describe('🥁 configuration options', () => {
       status: 200,
       statusText: 'OK',
       headers: {},
+      request: {
+        responseURL: url,
+      },
     };
     const adapter = (options: GaxiosOptions) => {
       return Promise.resolve(response);