I found PostHog because I saw a startup using it.
I didn't know much about it at the time, but I looked it up and realized most of it was free. I figured it didn't hurt to try it on buildwithdani.com（在新标签页中打开） (opens in a new tab) — my product studio site — so I did.
That was one of the better decisions I've made as a builder.
Setting it up
PostHog has two ways to get started — a wizard and a non-wizard CLI. Honestly if you're even a little technical, it's not that bad. I'm naturally curious about how things work, so I went through the setup, got my project configured, then opened Cursor and prompted it to add PostHog into my codebase.
That part was actually fun. I was watching Cursor write the implementation in real time, teaching me things as it went. When I didn't understand what something was doing I just Googled it. No shame in that — that's how I learn most things.
Tip: If you're using Next.js, go with the wizard. It handles the provider setup automatically and you'll have session replays running in under 10 minutes.
What I saw after it started working
Session replays.
I opened my PostHog dashboard and watched myself — or really, watched my visitors — use my site. Clicks, scrolls, where people stopped, where they left. All of it recorded.
That hit different. I sat there watching and just thought — technology is moving fast. Like genuinely fast. The fact that I could set this up in an afternoon and start seeing exactly how real people interact with what I built — that's not normal. That's kind of wild if you think about it.
Why this matters
Before PostHog my process was: build, ship, distribute, and hope.
I had no idea what people were actually clicking on. No idea where they were leaving. No idea if anything I built was landing the way I thought it was.
That data isn't just useful for builders either. Sales people, marketers, product teams — anyone who cares about understanding people could use this. Knowing where someone clicks and where they stop is valuable no matter what you're building toward.
If you're a vibe coder, just try it
Tip: You don't need to be a traditional engineer. I used Cursor to write the integration, Google to understand what it was doing, and PostHog's wizard to handle the setup. That's it.
You don't need to be a traditional engineer to set this up. I used Cursor, I used Google, and I figured it out. The PostHog docs are solid and the wizard handles most of the setup for you.
If you're building something and shipping into the void — not knowing if anyone's actually using what you made or how — PostHog fixes that.
It's free to start. It took me an afternoon. And now I actually know what's happening on my site.
That's worth a lot.