US Proxy

Amazon’s anti-bot (PerimeterX) has changed. It doesn’t just check IP reputation anymore — it fingerprints TLS handshakes and TCP signatures. Residential proxies used to work, but now they get flagged after 200-300 ASINs because the underlying connection doesn’t match a real browser on a real ISP. Datacenter IPs? Around 15% success rate. What’s working: ISP proxies with sticky sessions — keep the same IP for hours instead of rotating per request. The IP is registered to a real consumer provider, and the TLS fingerprint matches when you pair it with a proper headless browser. US rotating proxy pools still work for targets without Amazon-level detection.

Yes. The US doesn’t have a single national tax — sales tax varies by state, county, and city. Over 12,000 jurisdictions. Oregon charges nothing, California starts at 7.25%, New York City stacks local taxes on top. E-commerce sites calculate tax by shipping address, but many also use IP geolocation to pre-fill the state or show estimated totals. Monitoring prices on Walmart, Best Buy, or Target from outside the US? The checkout math won’t match what an American shopper in Texas or Florida actually sees.

ISP. All major US streaming platforms actively detect and block datacenter ranges. Netflix in particular maintains blocklists that catch most datacenter and VPN connections. ISP proxies — IPs registered to consumer broadband providers like Comcast, AT&T, Spectrum — pass because they look like regular home connections. Datacenter IPs still work for scraping catalogs or checking availability metadata, but for actual video playback, ISP is the way. FineProxy’s US datacenter and ISP (residential static) proxy options cover both use cases.

For posting — not really. Craigslist is extremely aggressive about geo-filtering: blocks most datacenter ranges on sight and restricts posting to the city matching your IP. FineProxy’s US pool is country-level, no city or state targeting. For scraping Craigslist listings across markets — reading public data, not posting — country-level US IPs work fine since reading doesn’t trigger the same geo-checks.

A stable US IP helps. Chase, Bank of America, Wells Fargo all flag logins from foreign IPs and trigger extra verification or outright blocks. A private (elite) american proxy — static IP that stays the same throughout your session — keeps banking access consistent. ISP proxies work best since banks check IP type, and datacenter ranges sometimes trigger fraud alerts on their own.

In some ways. No federal equivalent of GDPR means no consent overlays blocking content on every first visit. California has CCPA (and CPRA), but that’s about data collection rights, not cookie banners. Practically: fewer JavaScript popups to deal with, no TCF cookies to manage. Anti-bot is a separate story — Akamai, Cloudflare, PerimeterX on .com sites are just as aggressive as on European ones. Easier on consent, same on detection.

The US BOTS Act makes it illegal to bypass purchase limits using automated tools — the FTC has enforced it, $3.7 million in settlements in 2021 alone. Beyond legal risk: Ticketmaster, Nike SNKRS, Footlocker all run advanced queue systems and device fingerprinting. IP is just one signal out of many. They check browser fingerprint, mouse movement, session behavior. A pool of US IPs helps with not sharing an address, but realistic browser automation matters far more than proxy volume.

Three types. Datacenter IPv4 — fastest and cheapest, 40,000 IPs in the US, for monitoring, APIs, and targets that don’t filter by IP type. ISP IPv4 — registered to US consumer providers, looks like home broadband, for streaming and sites that block datacenter ranges. Rotating with US in the pool — new IP per request, for bulk collection. Country-level targeting only (US) — no city, state, or ASN selection. Static billed per IP with unmetered bandwidth, rotating per API credits.

Proxies for 48 hours. Build a plan for your task and test the proxies in real work. Pay for the selected configuration for 48 hours—the price is calculated during setup.