AI bots

GPTBot: what it is, its IP ranges, and how to block it

GPTBot is OpenAI's crawler for AI training.

Vendor	OpenAI
What it is for	AI training
In its User-Agent	`GPTBot`
Its vendor's address list	`https://openai.com/gptbot.json`
IP ranges	18

It takes pages to train AI models and sends nobody back to your site. Bot Protection blocks it by default; you can let it through.

How to verify it

Any bot can write GPTBot in its User-Agent. A request is GPTBot only when its address is in OpenAI's published list below: check the address, not the name.

Check an address

How to block it

With robots.txt, you ask it to stay out:

User-agent: GPTBot
Disallow: /

robots.txt is a request, not a block, and it cannot tell the real crawler from a bot wearing its name. Bot Protection verifies GPTBot by its address on every request and answers it as you choose on the Set-up page, per kind or for GPTBot alone; a bot that only wears the name is judged like any other bot.

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Its IP ranges

From OpenAI's own list, downloaded again every day.

IPv4

132.196.86.0/24
172.182.202.0/25
172.182.207.0/25
20.125.66.80/28
20.171.206.0/24
20.171.207.0/24
4.227.36.0/25
52.230.152.0/24
74.7.175.128/25
74.7.227.0/25
74.7.227.128/25
74.7.228.0/25
74.7.230.0/25
74.7.241.0/25
74.7.241.128/25
74.7.242.0/25
74.7.243.128/25
74.7.244.0/25