I built a website change monitor that still works when CSS selectors break
Hey Indie Hackers!
Problem: Many website change monitors break silently when pages are JavaScript-heavy or when the DOM structure changes.
FetchTheChange is my attempt to fix that. It monitors any value on a page (not just prices) and—when a selector stops matching—helps you recover instead of failing silently.
Key features:
Works on modern, JavaScript-heavy sites
Monitors any value (prices, availability, metrics, text, status messages)
Shows clear failure states (e.g. “selector missing” vs “blocked”)
Includes a built-in “Fix Selector” helper that suggests working selectors
Here’s a screenshot of the selector-fixing flow:
Live demo:
I’d love honest feedback:
Would you use this? For what use case?
Is the “Fix Selector” flow clear enough for non-technical users?
What would you need before paying for it?
Happy to answer any questions — thanks for taking a look!
Congrats on the launch, looks solid. How are you currently thinking about acquiring early users and gathering feedback?
Thanks a lot. That's my next problem now I have a working app. I have tried several ways, like posting here, and some similar places. Also tried to mention in on redit. So far not a huge uptake. How would you dealt with this?
And for the record this is a hobby project, so I'm not keen to invest a lot into marketing.
That’s pretty common, Reddit rarely works with casual mentions. It usually needs a more deliberate, thread-first approach. I actually help founders turn Reddit into a consistent user acquisition channel without big upfront spend. If you’d like, I can take a quick look at your app and suggest what I’d test first.
I'm open to any help to get this out.
I tried making a appropriate post in a relevant sub, but I don't have an active enough user account to be allowed to post. So I've only been able to comment on other's posts.
That’s where many founders often struggle. Reddit involves more than just posting; it requires warming up accounts, understanding subreddit culture, and engaging in the right threads at the right time.
I specialize in handling these aspects for founders so they don't have to navigate the mechanics on their own. If you'd like, we can move this to a direct message, and I can outline how I would approach it specifically for your app.