I Built a Postcode-Level Broadband Comparison Tool for Every UK Postcode

Most broadband comparison sites show you plans. They don't show you what speed you'll actually get at your address. I built Broadband Compare UK to fix that. It uses real Ofcom data to show postcode-level broadband availability, speeds, and coverage across the UK. What it does Every postcode page shows: Broadband availability from Ofcom Connected Nations 2025 Real-world speeds from Ookla Speedtest data House prices from Land Registry Crime stats from Police.uk School ratings from GIAS/Ofsted Transport links , GP surgeries, EV charging, flood risk, air quality, and more Over 500,000 postcodes are live right now. The full 1.7 million will be done this week. The stack Next.js 16 with ISR (Incremental Static Regeneration) Neon PostgreSQL for all data (2.9GB and growing) Tailwind v4 for styling Vercel for hosting 13 free UK government data sources stitched together per postcode The data pipeline The hardest part was not building the UI. It was ingesting and normalising data from 13 differen