SEO & GEO Insights by Justin Hà

GPT-5.6 Listicle Citations: What Changed, What Didn’t

ChatGPT changed how it finds sources in August 2026. The change is well documented industry-wide. What is less documented is whether it…

Most GEO advice treats a ChatGPT answer as a list of web citations. That is only part of the picture. In a…

gpt-5-6 and gpt-5-6-mini answer the same question in very different ways. One model runs a self-generated site: search filter four times more…

ChatGPT often picks a brand before it runs a single search. This claim rests on two separate, independently captured datasets from ChatGPT…

Over 5 years, I have completed more than 30 SEO and GEO projects across a wide range of industries and markets. More…

A website can look perfect. It loads fast. It passes every SEO check. And it can still be invisible to AI tools…

A server log file shows GPTBot, ClaudeBot, and OAI-SearchBot visiting a site regularly, confirming they are reading pages and getting successful 200…

A server spends real resources on every bot that visits. Some of those bots send traffic, citations, and AI visibility back. Others…

OpenAI runs four separate bots that interact with a website in completely different ways. Treating them as one single “ChatGPT bot” leads…

If you manage a website, your server is quietly recording every single visit from real users and from bots. Those records are…