User-Agent Client Hints Demo

Specification

User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Accept-CH Header

HTTP Request Headers

JavaScript

navigator.userAgentData.brands

brand version

navigator.userAgentData.mobile

navigator.userAgentData.getHighEntropyValues()