Trae
ByteDance's AI coding agent
About this crawler
Trae is a web crawler identified by the regular-expression pattern Trae\/ in the User-Agent request header. It is categorised as browser-automation. Use the regex above to detect, log, allow, or block Trae traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.13%
Technical details
- Name
- Trae
- Pattern
Trae\/- Tags
- browser-automation
- Reference
- https://www.trae.ai/
- Added
- 2026/04/26
- rDNS suffixes
.bytedance.com,.tiktokv.com- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely Trae with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.
.bytedance.com.tiktokv.com
Sample User-Agent strings
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Trae/1.107.1 Chrome/142.0.7444.235 Electron/39.2.7 Safari/537.36
Block this crawler
robots.txt — disallow Trae:
User-agent: Trae
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Trae\/ [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Trae\\/") {
return 403;
}
← back to all crawlers