DGA botnet domains: on false alarms in detection

This article reviews multiple benign causes of seemingly random or DGA-like domain lookups—covering McAfee GTI File Reputation queries, DNS blacklist/geolocation checks (Spamhaus DBL, countries.nerd.dk), internationalized domain names encoded with Punycode (xn--), Chrome/Chromium NXDomain hijack tests, Google metric and pack.google.com requests, and CDN hostnames—and explains how these patterns can be misclassified as botnet activity, offering guidance to reduce false positives while reserving malicious examples for a subsequent post.