FourA Blog

Product updates, engineering insights, and industry analysis from FourA — the intelligent data collection platform.

Why Proxy Pool Size Stopped Mattering in 2026

Vendors advertise 400 million residential IPs. But in 2026, IP reputation collapsed as a defense, and proxy pool size stopped predicting real success.

SERP Monitoring at Scale After num=100

Tracking Google rankings at scale got harder once num=100 died. Here's how SEO engineering teams are rebuilding SERP monitoring infrastructure for 2026.

FourA Digest — May 8 to May 15, 2026

The dashboard now has a real request playground for composing API calls, and `unblocker: true` is back to working end-to-end on Single and Proxy Finder.

JA4 and Post-Quantum TLS Broke the Basic Scraper

Your User-Agent header doesn't matter anymore. JA4 fingerprints classify bots at 98.6% accuracy before headers are even read. Here's what shifted in 2026.

FourA Digest — May 1 to May 8, 2026

Proxy Finder now picks proxies based on what actually worked for your target sites, plus Browser stability fixes and a Dashboard product filter.

Detecting MAP Violations Across Six Marketplaces

Manual MAP monitoring catches violations days too late. Here's how brand protection teams scrape Amazon, Walmart, eBay, and TikTok Shop in near real time.

FourA Digest — Apr 24 to May 1, 2026

This week at FourA: Proxy Finder's dashboard joins the FourA design system, login errors now recover cleanly, and Overview filters by product and outcome.