diff --git a/code/core/src/telemetry/anonymous-id.test.ts b/code/core/src/telemetry/anonymous-id.test.ts
index 6606f43cabc2..8277ca547e85 100644
--- a/code/core/src/telemetry/anonymous-id.test.ts
+++ b/code/core/src/telemetry/anonymous-id.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, it } from 'vitest';
 
-import { normalizeGitUrl } from './anonymous-id';
+import { normalizeGitUrl, unhashedProjectId } from './anonymous-id';
 
 describe('normalizeGitUrl', () => {
   it('trims off https://', () => {
@@ -69,6 +69,12 @@ describe('normalizeGitUrl', () => {
     );
   });
 
+  it('adds .git if missing', () => {
+    expect(normalizeGitUrl('https://github.com/storybookjs/storybook')).toEqual(
+      'github.com/storybookjs/storybook.git'
+    );
+  });
+
   it('trims off #hash', () => {
     expect(normalizeGitUrl('https://github.com/storybookjs/storybook.git#next')).toEqual(
       'github.com/storybookjs/storybook.git'
@@ -85,3 +91,17 @@ describe('normalizeGitUrl', () => {
     );
   });
 });
+
+describe('unhashedProjectId', () => {
+  it('does not touch unix paths', () => {
+    expect(
+      unhashedProjectId('https://github.com/storybookjs/storybook.git\n', 'path/to/storybook')
+    ).toBe('github.com/storybookjs/storybook.gitpath/to/storybook');
+  });
+
+  it('normalizes windows paths', () => {
+    expect(
+      unhashedProjectId('https://github.com/storybookjs/storybook.git\n', 'path\\to\\storybook')
+    ).toBe('github.com/storybookjs/storybook.gitpath/to/storybook');
+  });
+});
diff --git a/code/core/src/telemetry/anonymous-id.ts b/code/core/src/telemetry/anonymous-id.ts
index c97071c0d127..1d23d0a493ae 100644
--- a/code/core/src/telemetry/anonymous-id.ts
+++ b/code/core/src/telemetry/anonymous-id.ts
@@ -3,6 +3,7 @@ import { relative } from 'node:path';
 import { getProjectRoot } from '@storybook/core/common';
 
 import { execSync } from 'child_process';
+import slash from 'slash';
 
 import { oneWayHash } from './one-way-hash';
 
@@ -16,7 +17,18 @@ export function normalizeGitUrl(rawUrl: string) {
   // Now strip off scheme
   const urlWithoutScheme = urlWithoutUser.replace(/^.*\/\//, '');
 
-  return urlWithoutScheme.replace(':', '/');
+  // Ensure the URL ends in `.git`
+  const urlWithExtension = urlWithoutScheme.endsWith('.git')
+    ? urlWithoutScheme
+    : `${urlWithoutScheme}.git`;
+
+  return urlWithExtension.replace(':', '/');
+}
+
+// we use a combination of remoteUrl and working directory
+// to separate multiple storybooks from the same project (e.g. monorepo)
+export function unhashedProjectId(remoteUrl: string, projectRootPath: string) {
+  return `${normalizeGitUrl(remoteUrl)}${slash(projectRootPath)}`;
 }
 
 let anonymousProjectId: string;
@@ -25,7 +37,6 @@ export const getAnonymousProjectId = () => {
     return anonymousProjectId;
   }
 
-  let unhashedProjectId;
   try {
     const projectRoot = getProjectRoot();
 
@@ -36,11 +47,7 @@ export const getAnonymousProjectId = () => {
       stdio: `pipe`,
     });
 
-    // we use a combination of remoteUrl and working directory
-    // to separate multiple storybooks from the same project (e.g. monorepo)
-    unhashedProjectId = `${normalizeGitUrl(String(originBuffer))}${projectRootPath}`;
-
-    anonymousProjectId = oneWayHash(unhashedProjectId);
+    anonymousProjectId = oneWayHash(unhashedProjectId(String(originBuffer), projectRootPath));
   } catch (_) {
     //
   }