Why You Should Not Use Free Proxies?

Somebody is paying for that server

Bandwidth and hardware cost money. When a proxy is free, the operator is getting value some other way: harvesting credentials, injecting ads, selling traffic logs, or building a picture of who uses their node and for what. Some free nodes are simply misconfigured servers being used without their owner's knowledge — which makes your traffic part of someone else's incident.

The interception problem

HTTPS protects the contents of a request, but a proxy still sees every hostname you visit, the timing, and the volume. On any plain HTTP endpoint — and there are still many, especially in APIs and internal tools — it sees everything, and can change the response before it reaches you.

The reputation problem

Public IPs are shared by thousands of people running whatever they like. By the time an address reaches a list, it usually has a history: spam, credential stuffing, aggressive scraping. Sites don't score you, they score the address. Log into an account from one and you can inherit the suspicion permanently, even after you switch to clean infrastructure.

The reliability problem

There is no SLA, no authentication and no support. Entries disappear mid-job, which turns a scheduled scrape into a pile of partial data you can't trust. Debugging that costs more engineering time than a month of decent proxies.

The reasonable alternative

If budget is the constraint, buy a small paid plan rather than a big free risk. A few gigabytes of clean residential traffic will out-collect an entire free list, finish faster, and keep your accounts out of review queues. Free proxies are only cheap if you don't count what they break.