pi-hole

Pi-hole-class DNS ad-blocker on a $2 ESP32-C3 (no PSRAM): 537k domains as 40-bit FNV-1a hashes in flash, binary-searched. UDP DNS sinkhole + web dashboard. https://youtube.com/shorts/RaxszOUMi8E?feature=share

A black hole for Internet advertisements

ESP32 based DNS sinkhole for ads and trackers

Pre-built, deduplicated Pi-hole blocklists merged from 35 curated sources — a 2.4M+ domain master list plus advertising, tracking, malware/phishing, suspicious, and NSFW categories. Hosts format, rebuilt weekly.