Bytespider
Official ByteDance / Toutiao webmaster documentation for Bytespider.
Official sources
User agents
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Mozilla/5.0 (compatible; Bytespider; https://zhanzhang.toutiao.com/) AppleWebKit/537.36
ByteDance
ByteDance operates Bytespider (e.g. for Toutiao / search-related crawling). Official documentation is published on the ByteDance / Toutiao webmaster portal (Chinese).
Autonomous systems
Network background
Bytespider traffic is often associated with Chinese and global cloud address space. ByteDance does not provide a single English JSON prefix file in the same style as OpenAI or Googlebot; verify with their webmaster docs and rDNS.
Published ranges
Official documentation and feeds for each product—open the links for current ranges and verification guidance.