Dev.to
6/19/2026

How Much of Your Blog Does AI Search Actually Grab? Breaking Down Claude's WebSearch and WebFetch
Short summary
AI search works in two stages: initial WebSearch shows only your page's title and URL with quotes capped at 150 characters; WebFetch then retrieves up to 100KB of your page body, which Claude's Haiku model summarizes before the main model sees it, capping citations at 125 characters. Clarity and structure matter far more than raw length—write for humans first, and AI will extract what it needs effectively.
- •AI uses a two-stage process: WebSearch returns only title+URL with 150-char quote limit; WebFetch pulls full page with 100KB+ capacity
- •Pages get summarized by Haiku before the main Claude model sees them, with citations capped at 125 characters
- •Focus on clarity and structure over bulk—most blog posts never hit size limits
Generated with AI, which can make mistakes.
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