Claude

How AI agents research and buy services in 2026: what ChatGPT, Google, Copilot, Perplexity, Claude, and Stripe support, and what a service business can do.

Guide · SEO+

What llms.txt is, who reads it, and whether it helps AI visibility: the proposal, Google's position, server-log studies, and when a file is worth keeping.

Guide · SEO+

The search index, crawlers, inclusion controls, and site-owner reports behind ChatGPT, Gemini, Claude, Perplexity, and Copilot, from official docs.

Complete guide · AI assistants

How Claude's web search finds pages: Brave Search and TurboPuffer, what ClaudeBot, Claude-SearchBot, and Claude-User do, and what to allow.

Guide · AI assistants

How to measure AI visibility: what to count, how many prompts and runs, error ranges, and the Google, Bing, and GA4 reports that fill the gaps.

Complete guide · Measurement

Track AI referral traffic in GA4: what the AI Assistant channel counts, a custom channel for ChatGPT, Claude, Perplexity, and others, and what GA4 cannot see.

Guide · Measurement

AEO and AI visibility tools by kind: what search engine reports, analytics, prompt trackers, graders, and log tools can and cannot measure, from vendors' pages.

Reference · Measurement

Plain definitions of the terms used in answer engine optimization (AEO) and AI search, from AI Overviews to robots.txt, with a source for every fact.

Reference · Research

Sourced AI search statistics for 2026: chatbot use, AI Overviews and clicks, AI referral traffic, cited sources, answer accuracy, and B2B buyers.

Reference · Research