How to measure LLM traffic with a GA4 exploration

Create a page exploration in GA4 in order to see how much traffic a website is receiving from LLMs and which pages are getting that traffic.

Regex for the Page Referrer filter:

^https:\/\/(www\.meta\.ai|www\.perplexity\.ai|chat\.openai\.com|claude\.ai|chat\.mistral\.ai|gemini\.google\.com|bard\.google\.com|chatgpt\.com|copilot\.microsoft\.com)(\/.*)?$

Remember to update the Regex as new LLMs enter the scene.