ip.offsec.nl

Public IP and request diagnostics utility, inspired by ident.me and ifconfig.co.

Behavior

• Browser requests to https://ip.offsec.nl render a small diagnostics page.
• CLI-style requests such as curl https://ip.offsec.nl return only the public IP plus a newline.
• Accept: application/json or /json returns structured request metadata.

Endpoints

curl https://ip.offsec.nl
curl https://ip.offsec.nl/ip
curl https://ip.offsec.nl/json
curl https://ip.offsec.nl/headers
curl https://ip.offsec.nl/asn
curl https://ip.offsec.nl/country
curl https://ip.offsec.nl/city
curl https://ip.offsec.nl/colo
curl https://ip.offsec.nl/ua

Development

npm install
npm test
npm run dev

The app is designed for Cloudflare Pages advanced mode. Deploy the public/ directory as the Pages output directory. The _worker.js file handles dynamic responses and falls back to static assets.