Show HN: Fosbury – Put ads on autopilot across channels just by dropping a URL

Fosbury, a new AI marketing tool, lets users drop a URL to automatically test ad channels, cut underperforming ones, and allocate budget only to those driving signups. The tool generates launch content for Reddit, X, and LinkedIn in about a minute, offering $20 in ad spend with no card required. Founder built it after two years of burning budget on unreadable campaigns.

Drop in your URL. We test every channel, cut what flops, and put your money only where it brings signups. $20 of ad spend on us · No card · We never spend your money without your go-ahead Other AI marketing tools hand you 40 posts to publish. You still do the work, and still can't tell what's working. Here you approve once, and results come back in dollars. Paste your URL and get ready-to-post launch content for Reddit, X and LinkedIn in about a minute — in your product's voice. Spent two years burning budget on campaigns I couldn't read. So I made something that tests small, kills the losers in days, and only scales what brings real signups. No dashboards. Would love your honest take. No setup, no tracking spec, no tag manager. Just your URL. Tiny budgets across every channel. Losers get cut within days. You approve once. We pour spend into whatever brings signups. ✂ same offer · 4 formats · losers cut POV: your ads run themselves CPA $4.10 ↓Stop publishing. Start converting. CPA $5.80 ↓Marketing, but make it automatic CPA $19.40 — cutAI ads tool for founders CPA $22.10 — cut