flagpost.io

flagpost.io is a live English-language website hosted on Cloudflare, Inc. (AS13335) in the United States, served by Cloudflare. cl0q first saw it on 2026-09-21 and last crawled it on 2026-09-21. It resolves to 172.67.132.160 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:

Flagpost — The modern, open-source CTF platform

The open-source CTF platform: run capture-the-flag competitions with real-time scoreboards, automations, team collaboration and one-command self-hosting.