Residential vs Datacenter Proxies: Which One Do You Actually Need?
Every week someone asks us why residential traffic costs $0.75 per GB when datacenter traffic costs $0.50. The honest answer is that residential IPs are a scarcer resource, but the useful answer is a framework for deciding which one your project actually needs. Buying residential for a target that accepts datacenter is burning money. Buying datacenter for a target that fingerprints hard is burning time.
How targets score your IP
When your request lands, most protected sites run the source IP through a reputation pipeline before the page even renders. The pipeline typically checks three things: the ASN type (is this a hosting provider or a consumer ISP), the IP's history (has it been seen scraping before), and the request context (does the fingerprint match a normal browser session).
Datacenter IPs fail the first check by definition. They belong to hosting ASNs, and a site that cares can block entire hosting ranges with a single rule. Residential IPs pass it, because blocking a consumer ISP range means blocking real customers.
The decision table
| Target behavior | Use | Why pay more |
|---|---|---|
| No bot protection, public data | Datacenter | You should not |
| Rate limits by IP only | Datacenter, rotated | You should not |
| Cloudflare, Akamai, PerimeterX | Residential | Hosting ASNs are auto-flagged |
| Social platforms, sneaker sites | Mobile | Carrier NAT makes blocks too costly |
Run the math on success rate, not price per GB
The metric that matters is cost per successful request. Say a datacenter pool succeeds 60% of the time on your target and residential succeeds 96%. With retries, the datacenter run consumes roughly 1.7x the bandwidth to collect the same dataset. At $0.50 vs $0.75 per GB, the residential run is often cheaper in total, and always faster in wall-clock time.
Our recommendation: benchmark both pools against your actual target with a 1 GB sample each. That test costs $1.25 total on our pricing and answers the question permanently.
When to mix pools
Mature scraping operations rarely pick one pool. They segment: datacenter for discovery crawls and sitemap walks, residential for the protected detail pages, mobile for the handful of login-gated flows. Because our credentials work across all pools, segmenting is a routing rule in your code, not a procurement project.