The verdict
Proxy-Seller wins on 5 of 7 core metrics, 1 tied. We'd pick Proxy-Seller for most teams that need multi-product proxy marketplace — ipv4, ipv6, isp, residential and 4g/5g mobile under one cart, crypto-friendly, 13 languages., but the right answer depends on your workload — read the full review of each below.
AlterLab vs Proxy-Seller — frequently asked
Which is cheaper, AlterLab or Proxy-Seller?
On the entry tier, Proxy-Seller is the lower-cost option per gigabyte. AlterLab starts at $10.00/GB and Proxy-Seller starts at $1.77/GB on residential. Both providers offer volume discounts, so the absolute cheapest tier depends on your monthly commit.
Which has a bigger IP pool, AlterLab or Proxy-Seller?
Proxy-Seller has the larger advertised residential pool. AlterLab reports 195+ proxy countries (pool size not disclosed) across 195+ countries; Proxy-Seller reports ~10M residential + 1M+ ISP/DC/IPv6 across 220+ countries across 220+ countries. Pool size is one signal — actual exit-node freshness and rotation logic matter more in production.
Which is better for web scraping, AlterLab or Proxy-Seller?
Proxy-Seller 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 — AlterLab is typically picked for Managed proxies across tiers; residential proxy access; Bring-Your-Own-Proxy workloads, while Proxy-Seller is often chosen for ["ipv4" use cases.
Which has better support and SLA, AlterLab or Proxy-Seller?
Proxy-Seller 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 AlterLab gates dedicated account managers and Proxy-Seller gates them on enterprise tiers.
Should I pick AlterLab or Proxy-Seller in 2026?
Pick AlterLab when Pay-as-you-go web scraping API that turns URLs into LLM-ready markdown, structured JSON and clean text with AI. Pick Proxy-Seller when Multi-product proxy marketplace — IPv4, IPv6, ISP, residential and 4G/5G mobile under one cart, crypto-friendl. Most teams that consider both end up with Proxy-Seller.