Built a simple DDNS service because existing ones felt too complicated. https://rjuip.com

Hey everyone,

I’ve been working a lot with ESP8266 projects and a small home server setup, and kept running into the same annoying issue — my public IP changing and breaking remote access.

I tried a few DDNS services, but honestly:

• some were overcomplicated
• some had messy configs
• some didn’t play nicely with simple IoT setups

So I ended up building a lightweight DDNS service for my own use, and recently turned it into something others can try:

👉 https://rjuip.com

It’s intentionally simple:

• Clean update URL (no weird formats)
• Works with routers, scripts, ESP8266
• Fast IP updates
• Minimal setup (2 minutes)

Example request:
https://rjuip.com/update.php?hostname=yourdomain.rjuip.com&username=youruser&password=yourpass&myip=auto

Right now registrations are paused for a short time (doing some system upgrades), but I’ve added a waitlist.

Would really appreciate feedback from people here — especially if you’re into self-hosting or IoT 🙌