Proxy marketing is a fog of '100M+ IPs' and '99.9% uptime' claims that all sound the same. Strip it away and only a handful of things decide whether a provider fits your work and budget. Here's the checklist — roughly in the order that saves you money and headaches.
The whole point of residential proxies is real ISP-assigned IPs. Some providers relabel datacenter ranges as 'residential' — they get blocked like datacenter IPs. Ask where the IPs come from, and test on your actual targets during a trial before committing.
The biggest hidden cost is the pricing structure. Watch for:
Flat per-GB pay-as-you-go with a non-expiring balance is the friendliest model for anyone who isn't spending thousands a month.
Geo coverage: confirm the countries (and ideally states/cities) you need are actually available. Session control: you want both rotating and sticky sessions, controlled simply. Protocols: HTTP, HTTPS and SOCKS5 with standard user:pass auth so it drops into your existing stack without custom code.
Free trial: a real trial (not a $1.99 paywall) lets you validate on your targets before paying. Support and transparency: clear docs, responsive support, and honest pricing pages signal a provider that'll still be reasonable after you've paid.
For reference, Roam checks these boxes: flat $2/GB pay-as-you-go, 190+ countries, rotating + sticky, HTTP/SOCKS5, a 300MB free trial, and a balance that never expires.
买代理最常见的错误是什么？
最便宜的服务商性价比最高吗？
我需要大牌企业级服务商吗？
Sign up in seconds, test your targets on real residential IPs, and only pay for what you use. $2/GB, forever-valid balance.