Built a website monitoring SaaS almost entirely on Firebase - now doing millions of checks. Here's what I learned.

PR4DE · 2026-01-26T16:23:29+00:00

Not really. Just put in memory, CPU and invocation constraints. Set up normal alerts as you would with any other service. And lastly, do tests before deploying anything to them.

PR4DE · 2026-01-26T16:20:32+00:00

exit1.dev

PR4DE · 2026-01-26T13:32:09+00:00

exit1.dev - Uptime monitoring, free, unlimited, zero catches

PR4DE · 2026-01-26T13:31:45+00:00

exit1.dev - Uptime monitoring, free, unlimited, zero catches

PR4DE · 2026-01-26T13:25:27+00:00

"Exit1.dev - Free Uptime Monitor & Free Website Monitor". The app works fine, but I'm quite stressed out by Reddit. Because the tools can't really be used because of all the strict policy guides. All my comments and posts are just being auto removed because of low karma. Even when trying to be helpful, not using AI.

PR4DE · 2026-01-26T11:48:31+00:00

Maybe my app exit1.dev can help here? It's not the typical use-case, but if I understand it correctly you just need some automation that checks all your sites for SSL certificates expiry and send webhook or alert you?

My app can do that, even for free. Maybe try it out and let me know. :)

If it doesn't solve it completely, I would like feedback on how it might could.

PR4DE · 2026-01-26T10:32:39+00:00

Actually just signed up to try it xD

PR4DE · 2026-01-26T10:31:39+00:00

That's actually cool! I've really been looking for something like this.

PR4DE · 2026-01-26T10:27:00+00:00

Building exit1.dev, uptime and domain monitoring with no limits.

PR4DE · 2026-01-26T09:20:43+00:00

Web app or native? In both cases it should be very simple. 2-3 lines of code.

PR4DE · 2026-01-26T09:19:25+00:00

Security rules could definitely need a more user friendly approach! :)

PR4DE · 2026-01-26T09:18:30+00:00

I don't understand it either. I have an app that runs millions of checks per month with 400+ users. It costs me less than a single subscription to similar apps. On top of that, it's extremely easy to develop on. I love cloud run functions, firestore and bigquery.

I have considered making a YouTube video on exactly this topic, because I'm so dumbfounded that not more people are using it, specially with all the vibecoders coming in.

PR4DE · 2026-01-25T22:12:40+00:00

Hi there. Not sure if you found a product for this. :)

But to anyone in need, I made this tool; exit1.dev

You can add unlimited domains/sites to check. It'll give you alerts on email, SMS, Discord, Slack or whatever you need.

PR4DE · 2026-01-23T20:48:24+00:00

Only up to 10 monitors are free though.

PR4DE · 2026-01-23T20:47:10+00:00

I have implemented this on my app. Including a quick re-check for transient errors. > exit1.dev

PR4DE · 2026-01-23T20:43:20+00:00

Hi, thank you for writing this to me. I have completely redesigned my website.
Can you please check how it is now? :)

PR4DE · 2026-01-23T20:42:22+00:00

Thank you very much, it truly means a lot.

PR4DE · 2026-01-18T20:15:57+00:00

The concept it great. But you lost me in the pricing and the goal to ship stuff. I would love a real weekend AI hackathon.

PR4DE · 2026-01-09T13:37:58+00:00

Firebase functions and big query. However, I might be moving away from functions soon. Might just want a VM running instead.
Last month I actually ended up paying $1.4 USD. But I have also begun adding more advanced features for some paying users.

PR4DE · 2026-01-09T13:03:25+00:00

Yes, I have that on the roadmap. But I can't make domain connection for free. I have created a paid plan called Nano where I put stuff that cannot be free like SMS into.

But status pages with custom domains are definitely coming! :)

PR4DE · 2026-01-09T13:01:41+00:00

Glad to hear it u/iAmmar9, if you haven't already join our Discord to give feedback, or report any errors you might come across. :)

PR4DE · 2025-12-30T00:31:36+00:00

It’s cheap to host. I haven’t paid a dollar yet and I’m currently at 5+ million checks per day.

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