I launched calcflip.com on April 2nd, 2026. By April 14th — 12 days later — it had 23,000 indexed-ready pages across 4 languages, Lighthouse scores between 90–100, zero GSC errors, and 17 organic clicks with an average position of 16. Zero backlinks. Here's exactly how I built it and why it works. The Core Idea Most converter sites are lazy. One page. One input box. Done. They don't realize