Choose & Operate

Blog.

Practical field notes for choosing proxy services and operating them reliably. Every article includes a test, worksheet, decision tree, or other artifact you can use—not just prose.

Publication archive

Operations field notes

8 articles

Aug 4, 2026

HTTP 200, but the Automation Still Failed: Build a Validator That Catches It

A main-document 200 is a real HTTP success. This field guide adds the page, session, outcome, and budget checks that decide whether your authorized browser job actually worked.

Operations

9 min

Aug 1, 2026

Playwright ERR_TUNNEL_CONNECTION_FAILED: A Reproducible Checklist

The Chromium error places the failure before a usable proxy tunnel formed. This checklist helps you reproduce the boundary without guessing at the cause.

Operations

7 min

Aug 1, 2026

How to Test a Proxy Provider Before You Commit: A 30-Minute Workload Benchmark

Freeze one authorized workload, run paired controls, and score every started attempt. Thirty minutes can screen a route without pretending to measure a whole provider.

Operations

8 min

Aug 1, 2026

Why Proxy “Success Rate” Numbers Disagree

One set of network events can produce several honest percentages. The number becomes comparable only when its unit, denominator, validator, retries, and taxonomy are visible.

Operations

8 min

Jul 31, 2026