FourA Digest — Jun 12 to Jun 19, 2026
Non-UTF-8 pages return readable text on Single instead of mojibake, validate rules drive success classification, and Wave 0 security hardening shipped.
FourA Blog · Page 3
The Recrawl Problem: Keeping RAG Pipelines Fresh
Your RAG knowledge base ages out the week you ship it. Here's how teams recrawl hundreds of vertical sources without breaking their engineering budget.
FourA Digest — Jun 5 to Jun 12, 2026
Click any Activity row to see the full payload, then reopen it in Playground prefilled. New honeypot guard catches proxies echoing requests as fake responses.
When LLM Extraction Stops Paying for Itself
Firecrawl charges 5x to LLM-extract a page versus scrape it. At 100K pages a day the math collapses. When LLM extraction earns its bill, and when it doesn't.
FourA Digest — May 29 to Jun 5, 2026
API keys created this week are revealable. The Dashboard remembers them, the playground's curl reproducer drops them in, and you can cancel slow requests.
How KORENA Built a Timber Price Index on FourA
KORENA built a daily European timber price index on top of forestry portals, auction PDFs, and ten currencies. FourA is the request layer behind it.
Building a B2B Company Enrichment Pipeline
Need to enrich thousands of companies daily from directories, websites, and press? Here's how to build a B2B enrichment pipeline that doesn't break weekly.
FourA Digest — May 15 to May 29, 2026
Two weeks of fixes on the dashboard playground: cookies follow RFC 6265 correctly, expand mode opens a real fullscreen overlay, and mobile finally works.
The Playground: Build and Test Requests in Your Dashboard
We shipped a Playground inside the Dashboard. Pick an endpoint, fill the fields, hit Send, copy the curl. Three endpoints, one cookie jar, every header.
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.