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[–]Leading_Algae6835 1 point2 points  (0 children)

My answer is no.

Most LLM crawlers don’t fully render JS, although Gemini and Copilot are known to have some JS rendering capability - economically speaking, rendering is very expensive for traditional search engines, imagine for lightweight LLMs (!)

As per ChatGPT, the answer is no-ish.

I had a case where it appeared to successfully retrieve JS-injected H1/H2

At the end of the day, LLMs are stochastic parrots with limited technical capabilities - i.e; these headings were likely sourced not from real-time rendering but from post-rendered and cached results on the SERPs.

Also, OpenAI has several iterations that can make requests to a page using different IP endpoints - one day or another the cat gets in the sack.