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Dev.to
Dev.to
5/11/2026
How I Built a Programmatic SEO Tool with 126K Pages Indexed in 30 Days (Built with AI Assistance)

How I Built a Programmatic SEO Tool with 126K Pages Indexed in 30 Days (Built with AI Assistance)

Short summary

The author built GradientGen, a free animated mesh gradient generator, achieving 126K indexed pages in 30 days using Claude and v0.dev for AI-assisted development. Success came from generating genuinely useful pages rather than thin templates—every URL produces a functional tool. Technical highlights: server-side related links for crawlability, dynamic metadata, strategic sitemap generation, and ISR caching with nightly cleanup on a Hetzner VPS achieving 106ms response times.

  • Built GradientGen to 126K indexed pages in 30 days using Claude and v0.dev for AI-assisted development
  • Key insight: pages must be genuinely useful tools, not thin templates—every URL is a functional gradient generator
  • Technical success through server-side rendering for SEO, dynamic metadata generation, and self-hosted infrastructure optimization

Generated with AI, which can make mistakes.

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