ClaudeBot (and its sibling identifiers `anthropic-ai` and `Claude-Web`) fetches pages on behalf of Claude. Like GPTBot, it respects robots.txt and honours Crawl-Delay headers. Anthropic publishes the IP ranges and user-agent strings in its trust center.
Claude is notable for weighting structured data heavily — pages with clean JSON-LD and an explicit llms.txt presence are disproportionately cited. Allow-listing ClaudeBot and shipping Organization + Product schema moves the needle fast.