geo 8.0 9 min AI Crawler Behavior 2025: What's Changed Since Last Year ChatGPT, Perplexity, and Gemini crawlers changed their access patterns. Here's what you need to update in your robots.txt. March 22, 2026
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geo 8.0 8 min llms.txt vs robots.txt: Which One Actually Controls AI Crawler Access? The new llms.txt file is confusing marketers. Here's what it actually does, when to use it, and whether it matters for your traffic. March 18, 2026