diff --git a/src/storage/web-api.ts b/src/storage/web-api.ts
index 4c21097..ab86cf0 100644
--- a/src/storage/web-api.ts
+++ b/src/storage/web-api.ts
@@ -21,7 +21,7 @@ import type { StorageValue } from './types';
  * @param prefix The prefix to index the storage. Useful to prevent collision between
  *   multiple places using the same storage.
  */
-export function buildWebStorage(storage: Storage, prefix = '') {
+export function buildWebStorage(storage: Storage, prefix = 'axios-cache-') {
   return buildStorage({
     find: (key) => {
       const json = storage.getItem(prefix + key);
diff --git a/test/storage/web.test.ts b/test/storage/web.test.ts
index c3cddfe..a765094 100644
--- a/test/storage/web.test.ts
+++ b/test/storage/web.test.ts
@@ -1,6 +1,7 @@
 /** @jest-environment jsdom */
 
 import { buildWebStorage } from '../../src/storage/web-api';
+import { mockAxios } from '../mocks/axios';
 import { testStorageQuota } from './quota';
 import { testStorage } from './storages';
 
@@ -15,4 +16,21 @@ describe('tests web storages', () => {
     localStorage.clear();
     sessionStorage.clear();
   });
+
+  it('Should use a key prefix by default', async () => {
+    const storage = sessionStorage; // does not matter any implementation details
+
+    storage.setItem('test-key', '1');
+
+    const axios = mockAxios({
+      storage: buildWebStorage(storage)
+    });
+
+    await axios.get('url', {
+      id: 'test-key'
+    });
+
+    expect(storage.getItem('test-key')).toBe('1');
+    expect(axios.storage.get('test-key')).not.toBe('1');
+  });
 });