404.tf

404.tf is a live English-language website hosted on Cloudflare, Inc. (AS13335) in the United States, served by Cloudflare. cl0q first saw it on 2026-10-04 and last crawled it on 2026-10-04. It resolves to 172.67.134.20 and has mail (MX) records set up. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.

How the site describes itself:

404.tf — Tomasz Fiedoruk's lab

Small, finished, measured side projects by Tomasz Fiedoruk. Currently: a file sent through light, labels you design yourself, and a QR code that is a portrait.