GPTBot vs Bytespider: Which AI Crawler Should You Allow or Block?
Complete side-by-side comparison of GPTBot (OpenAI) and Bytespider (ByteDance): user-agent strings, safety ratings, SEO impact, and copy-paste blocking rules. Updated August 2026.
Quick Verdict
GPTBot has the better safety profile (Safe) compared to Bytespider (Aggressive). If you allow only one, GPTBot is the lower-risk choice. Bytespider warrants closer monitoring in your server logs, and server-level blocking if robots.txt directives are not respected.
| Attribute | GPTBot | Bytespider |
|---|---|---|
| Operator | OpenAI | ByteDance |
| User-agent string | GPTBot |
Bytespider |
| Category | AI & LLM Bots | Data Scrapers |
| Safety rating | Safe | Aggressive |
| SEO impact if blocked | Low - No SEO ranking impact | Low - No SEO ranking impact |
| Recommendation | Generally safe to allow; provides legitimate crawling value. | Block this bot - it provides no SEO benefit and wastes crawl budget. |
| Official docs | GPTBot docs | Bytespider docs |
What is GPTBot?
OpenAI's web crawler. Used to collect training data for GPT models. Blocking it prevents your content from being used to train ChatGPT but does not affect search visibility.
Full GPTBot guideWhat is Bytespider?
The aggressive web crawler operated by ByteDance (parent company of TikTok). It is known for high crawl rates and is primarily used to gather data for their Large Language Models (Doubao/Lark).
Full Bytespider guideHow to block each bot
Block GPTBot in robots.txt
User-agent: GPTBot Disallow: /
Block Bytespider in robots.txt
User-agent: Bytespider Disallow: /
Want to block or allow many bots at once? Use our free robots.txt generator with 196+ bot presets, then verify with the AI crawler checker.
Are GPTBot and Bytespider allowed on YOUR site?
Run a free check to see exactly which AI crawlers can access your website, plus your AI Visibility Score.
Check My Website Free