Get all your critical Substack metrics on one dashboard.

See your newsletter's true health in 60 seconds. No more toggling between tabs.

The Problem

Substack's analytics are scattered across a dozen screens. To get a real picture of your newsletter's performance, you'd need to click through dashboards, export CSVs, and do math in a spreadsheet. Most creators never bother, which means they're flying blind.

The Solution

Substack Newsletter Audit pulls all your Substack analytics into one dashboard and scores them against industry benchmarks. In seconds, you'll know exactly where your newsletter excels and where it needs work.

This Chrome extension is based on the Complete Substack Newsletter Audit Playbook and includes metrics commonly used to evaluate newsletters for acquisition and partnership opportunities. 

Now you can run that audit on your own publication, anytime you want.

What You'll See

The 7 Revenue Predictors

The metrics that actually matter for newsletter growth and monetization, each color-coded so you know at a glance whether you're excellent, good, average, or need attention:

• Open Rate
• Click-Through Rate
• Click-to-Open Rate
• Free-to-Paid Conversion
• Monthly List Growth
• Paid Subscriber Churn
• Paid Unsubscribe Rate

Content Performance

Every post you've ever published, with metrics you can't easily see on Substack: clicks, paid conversions, and more. Sort by any column to find your winners (and learn from your duds).

Audience Insights

Who are your subscribers? See the free vs. paid breakdown, where they're located, and which other publications they read. Great for finding collaborators.

Growth Analytics

Which channels actually drive subscribers? See your full traffic sources and signup sources, including specific newsletter recommendations, without having to bounce between Substack’s analytics and its recommendations management page.

Monetization

Track your ARR, subscription tiers, churn, and lifetime value, all on one page.

Getting Started

1.  Download the new version from your Gumroad library
2. Unzip the downloaded file. You will see the Substack Audit Extension folder.
3. Go to chrome://extensions
4. Click "Load unpacked" and select the folder 
5. Log into your Substack account
6.  Click the extension icon and enter your newsletter URL

   

   

   
   
7.  View your complete audit dashboard

That's it. No account to create, no data to export, no waiting. Your analytics are pulled directly from Substack's APIs using your existing login session.

Privacy First

Your data never leaves your browser. The extension reads directly from Substack's APIs and processes everything locally. Nothing is sent to external servers. Nothing is stored. It's just you and your data.

Launch Special: Grab it early, pay less (or nothing)

We're rewarding early adopters with tiered launch pricing:

🚀 First 15 downloads | Free   
Discount code: 0OSC55F SOLD OUT

⚡ Second 15 downloads | $5    
Discount code: TMJGHNF

🔥 Third 15 downloads | $10  
Discount code: 1U93G6V

📌 After launch  | $15  

The discount codes become inactive when all 15 downloads have been claimed.

Already a paid subscriber?

If you have a paid subscription to Wondering About AI or The Digital Creator, the tool is yours free, forever. Enter your subscriber access code at checkout. (Check your email for your code.)

Who Made This

Newsletter Audit is a collaboration between the creators of Wondering About AI and The Digital Creator that combines technical chops with deep newsletter expertise. We built the tool we wished existed.

Questions?

Does it work with custom domains?

Yes. Whether you're on yournewsletter.substack.com or a custom domain, the extension works the same way.

Will Substack break this?

The extension uses Substack's internal APIs, which could change. We'll do our best to keep it updated, but we can't guarantee compatibility forever.

Can I get a refund?

If the extension doesn't work for you, reach out and we'll make it right.