<p>My product is a weekly email newsletter for dog owners. It has <b>50,645</b> subscribers on Substack, and 96% of the people who open it live in the US.</p><p>Each issue tells a dog story (a 15-year-old golden doing Pilates, a guard dog who greeted a burglar with a toy), then explains in plain words why dogs do what they do.</p><p>People open it. Recent issues <b>get 46–55% open rates.</b></p><p>If you sell to dog owners (training, food, supplements, insurance, gear), these readers are your customers. I'm not promoting any offers right now, so you'd pick what this list sees next.</p><p><b>Key numbers</b></p><ul> <li><b>50,645 subscribers</b> (Substack dashboard, Oct 8, 2026)</li> <li><b>46–55% open rates</b> on the last 6 issues</li> <li><b>30,000–43,000 views</b> per issue</li> <li><b>96% are in the US</b> (all 50 states, plus 4% other countries)</li> <li><b>Sent weekly/bi-weekly</b> since Dec 31, 2024</li> </ul> <p><b>How the list was built</b></p><p>Starting in 2021, I ran Google Search ads to a free signup form. Dog owners who signed up got a 7-day email course on loose-leash walking, biting, barking, potty training and grooming.</p><p>Each email taught a real skill. And each one had a link in the footer, a dog-training program I promoted as an affiliate.</p><p>That email series earned <b>$145,816 from 4,059 sales</b>. Everyone who signed up stayed on the list, and that's how it grew past 50K.</p><p>When Google Ads costs went up, I stopped the ads. Then I sent one offer to the list. It earned <b>$10,009 from 143 sales.</b></p><p>That's when I learned what the list could do. On Dec 31, 2024, I started a weekly newsletter so readers would hear from me every week, even when I had nothing to sell.</p><p>I wanted readers to trust me first, and the open rates show it worked.</p><p>So the next owner gets a list that has heard from me every week for 21 months. It's also approved for <b>Wellput's sponsor network (Oct 2026)</b>, so sponsor ads can start as soon as you take over.</p><p><b>How it runs</b></p><p>Each issue takes me <b>about 1 hour.</b></p><p>First I give Grok a 2-minute prompt to research a dog story or behavior topic. Then I write the issue with Claude, using a voice profile I built so every issue sounds the same. I write it one paragraph at a time and edit as I go.</p><p>The newsletter name is pen names, and Bentley is a fictional dog. There's no real founder for readers to miss, so you can keep the same names and the same voice after you take over.</p><p><b>What you get</b></p><ul> <li><b>The Substack publication</b>, with every past post and all drafts</li> <li><b>The full subscriber list</b> (50,645 emails, CSV export)</li> <li><b>My voice profile</b> and the Claude prompts I use to write each issue</li> <li><b>My Grok research prompt</b></li> <li><b>The approved Wellput sponsor account</b></li> <li><b>A 1-hour handover call</b> with me</li> </ul> <p><b>Why I'm selling</b></p><p>This was always a side business, and I can't give it enough time anymore.</p><p>I applied to Wellput so the next owner would have a way to earn from the list from day one. I'll run a few sponsor campaigns before the sale and share the real numbers with serious buyers.</p><p>✅ $350 TTM revenue</p><p>✅ 50,645 subscribers</p><p>✅ Business model: Affiliate</p><p>✅ Built with Substack,&nbsp;Claude</p>