From 0 to 30 indexed pages in 3 weeks — what actually moved the needle

From 0 to 30 indexed pages in 3 weeks — what actually moved the needle I'm building Convertify — a free image converter that supports 20+ formats with no signup, no limits, and no file tracking. Solo project, built with Rust + libvips on the backend and Next.js on the frontend. Three weeks ago Google had indexed exactly 0 pages. Here's what I changed and what actually worked. The starting point: a Vite SPA that Google couldn't read The original version was a classic React SPA bundled with Vite. Fast to build, great DX — and completely invisible to Google. Googlebot would hit the page, get an empty HTML shell, and move on. No content to index. The fix was straightforward in theory: migrate to Next.js App Router with SSG. In practice it took a few days, but the result was 186 fully rendered static pages generated at build time — one for every format combination the tool supports. That alone got me from 0 to around 16 indexed pages in the first two weeks. But then growth stalled. What act