ProxyRack wins on 4 of 7 core metrics, 2 tied based on independent ProxyLook benchmarks. Last tested May 26, 2026.
ProxyRack wins on 4 of 7 core metrics, 2 tied. We'd pick ProxyRack for most teams that need long-running residential, datacenter, mobile and isp proxy provider with unmetered thread-based plans, 5m+ rotating ips and 140+ countries., but the right answer depends on your workload — read the full review of each below.
On the entry tier, ProxyRack is the lower-cost option per gigabyte. Diffbot starts at $299.00/GB and ProxyRack starts at $5.00/GB on residential. Both providers offer volume discounts, so the absolute cheapest tier depends on your monthly commit.
ProxyRack has the larger advertised residential pool. Diffbot reports Knowledge Graph: 2B+ entities, 10T+ facts across 50+ countries; ProxyRack reports 5M+ monthly rotating residential IPs across 140+ countries. Pool size is one signal — actual exit-node freshness and rotation logic matter more in production.
ProxyRack edges ahead on overall success rate against our nightly Cloudflare/Amazon/Google SERP test rig. That said, the right choice depends on your target site mix — Diffbot is typically picked for ["Scraping API" workloads, while ProxyRack is often chosen for ["residential" use cases.
Diffbot carries the higher trust score in our directory based on documented compliance, support responsiveness, and customer-base feedback. Both offer 24/7 channels at upper plans; only Diffbot gates dedicated account managers and ProxyRack gates them on enterprise tiers.
Pick Diffbot when AI web-data company offering rule-less Extract APIs, Crawlbot spidering, a Natural Language API, and a Knowled. Pick ProxyRack when Long-running residential, datacenter, mobile and ISP proxy provider with unmetered thread-based plans, 5M+ rot. Most teams that consider both end up with ProxyRack.
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