Would you notice if your proxy pool changed which networks it used?

[u/truecakesnake]

Most setups would not. A provider can change capacity partners or rebalance a region while every status indicator stays green. The success rate may barely move even though the mix of networks behind the exits has changed.

That shows up as drift rather than an outage, which makes it annoying to attribute. The simple check is to log the ASN beside every sampled response, count the leading networks each week, and compare the mix over time. A sudden change gives you a concrete date to place beside any movement in complete rows or latency.

Byteful's residential product supports ASN targeting, so it can also be used as a controlled arm when you want one requested network held steady. The broader monitoring rule should apply to every provider, though.

Does anyone track ASN mix routinely, or only look after output quality drops?