The choice between residential and datacenter proxies comes down to one question: does your target judge you by your IP? If it does, you need the trust of a residential IP. If it doesn't, a datacenter IP does the same job faster and cheaper. Here is how to decide.
Trust vs speed
Residential IPs belong to real households, so they pass reputation checks that datacenter ranges fail. Datacenter IPs live in hosting facilities with abundant bandwidth, so they respond faster and handle higher concurrency.
Neither is universally better. A residential IP wasted on a lenient target just costs you more per gigabyte; a datacenter IP thrown at a protected target just gets blocked. The skill is matching the pool to the defense.
Cost and how you're billed
Both pools here bill by bandwidth — you pay per gigabyte, and bigger packs cost less per GB. Datacenter traffic is the cheapest because the IPs are cheap to run; residential is more expensive because the IP quality is the value.
For budgeting, estimate your monthly gigabytes and route the hard-target share through residential and the rest through datacenter. That blended approach almost always beats putting everything on one pool.
A quick decision rule
Pick datacenter for: internal APIs, uptime checks, lenient sites, and any high-volume fetch where the target ignores IP type. Pick residential for: SERP and SEO data, ad verification, price monitoring on major retailers, and anything that already blocks you on datacenter.
When even residential gets challenged — social platforms, the strictest anti-bot stacks — step up to mobile. Think of the three as a trust ladder you climb only as far as the target forces you to.