Web crawler lookup

What is Bytespider?

Bytespider is a ai or training crawler operated by ByteDance. Use this crawler profile to identify user-agent tokens, operator signals, platform hints, and recommended handling.

Bytespider

ByteDance · AI or training crawler

Version
Unknown
First seen
May 20, 2026
Last seen
May 25, 2026
Confidence
Known user-agent token

What is Bytespider?

Bytespider is a ai or training crawler operated by ByteDance. Bytespider is likely used by ByteDance to collect or evaluate public web content for AI, language, or training systems.

Bytespider matched a known crawler token in the user-agent string, but this page alone does not prove IP ownership.

How to identify Bytespider in logs

Search server logs for Bytespider. Matching those tokens is useful for discovery, but IP verification is still recommended before trusting the identity.

Bytespider

Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)

Use this as a web-crawler lookup reference for identifying how this user-agent presents itself in server logs.

User-agent signals

Product tokens
Mozilla/5.0, Linux, Android, AppleWebKit/537.36, Gecko, Safari/537.36, Bytespider
Documentation
None found in user-agent
Contact
spider-feedback@bytedance.com
Platform
Android · Mobile
Browser profile
Safari · WebKit
Browser-like UA
Yes
HTTP library
Unknown
Spoof risk
Medium

Questions answered by this crawler profile

What is Bytespider?

Bytespider is likely used by ByteDance to collect or evaluate public web content for AI, language, or training systems.

Who operates Bytespider?

Bytespider is associated with ByteDance.

How do I identify Bytespider in logs?

Search server logs for Bytespider. Matching those tokens is useful for discovery, but IP verification is still recommended before trusting the identity.

Should I allow Bytespider?

Verify IP ownership or behavior before making security decisions because user-agent strings can be spoofed. Review your robots.txt and AI crawler policies, then allow, block, or rate-limit it based on your content usage preferences.

Does Bytespider respect robots.txt?

Robots.txt compliance cannot be proven from a user-agent string alone. Check the crawler operator documentation and your own logs before assuming behavior.