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Esp32 C3 Adblock

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

Description excerpted from the original listing, which is linked below.

Open it Source code

Facts

Published: 19 Jun 2026 (19 Jun 2026)
Medium: web
Language: English (the page says so itself)
First seen: 8 Oct 2026, 06:17 UTC

Built with

Claude Code: confirmed
the agent's own signature in the repository's commit history

What we can see

81 hygiene score

Certificate issued by YR1, 52 days remaining
Cookie attributes 3 cookies, 0 without the secure flag
Credentials and payment does not ask for either
Strict transport security set
Served over HTTPS
Mail authentication sender policy and authentication published
Loads insecure resources 2 resources
Redirects none
Security headers 4 of 5 set, policy permits inline or evaluated script
Third-party origins 12
Transport security TLS 1.3

Observed 15 Oct 2026 by fetching the page as a browser would. This describes hygiene and transparency, not safety: a missing header does not make a site dangerous, and a complete set does not make it trustworthy.

Made this?

Show it on your own site or README. It links back to this page.

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For a web page

<a href="https://bitsexplorer.com/i/2229510/esp32-c3-adblock"><img src="https://bitsexplorer.com/badge/2229510.svg" alt="Featured on BitsExplorer" height="22"></a>

For a README (Markdown)

[![Featured on BitsExplorer](https://bitsexplorer.com/badge/2229510.svg)](https://bitsexplorer.com/i/2229510/esp32-c3-adblock)

Changes we have seen

15 Oct 2026 updated
8 Oct 2026 first indexed

Esp32 C3 Adblock

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