How I Sold Out in 72Hrs With Just a Landing Page
16 May 2025 · 1 min

0:47
Omar Zenhom recounts how he launched WebinarNinja by selling before building: in 2014 he created a landing page and a short video describing the problem and offer, pre-sold 250 beta spots as early access, and ‘‘sold out in 72 hours’’, which he cites as a decisive validation to build the product. The clip is a first-person startup/launch case study emphasizing pre-sale validation and a minimal launch setup (landing page + video).
Questions this video answers
2014
250 beta spots
72 hours
WebinarNinja










