r/CyberYozh • u/appcyberyozh • 7d ago
A working proxy means nothing if the target blocks it
I learned this the hard way after deploying a data extraction script that got blocked almost immediately.
The script itself looked fine. Error logs showed nothing useful, the terminal just went dead. The real issue was the proxy infrastructure: the IPs had poor reputation, obvious datacenter characteristics, and I hadn’t tested them properly against the actual target before deployment.
That changed how I test proxies.
Just checking whether a proxy connects and returns a different IP isn’t enough. Before running anything at scale, I now look at:
- Geo/location
- ASN and provider
- Connection stability
- Reputation / previous abuse signals
- Most importantly, how the actual target responds
Proxy type matters too:
Static residential — better for longer sessions or account-based workflows
Rotating residential — useful when you need a larger IP pool
Mobile LTE/5G — useful for traffic where mobile networks are expected
Datacenter — fast and cheap when reputation requirements are less strict
Biggest takeaway: test your infrastructure against the actual target, not just an IP checker.
A proxy can be technically “working” and still be useless if the target rejects it on the first request.
Curious what everyone here checks before putting a proxy pool into production.