Tallyhouse

GPTBot

OpenAI — Training

All crawlers · Agent Accessibility Index

Purpose: Training. Bulk crawling to build model training data.

Collects web content to train OpenAI's generative models. The token most sites reach for first when refusing AI training, and among the most blocked in the panel.

16.58%

of the panel names this token in robots.txt and disallows it, for the week of 2026-10-05.

How sites treat this token

StanceDomainsWhat it means
FullBlock130Every path is disallowed for this token.
PartialBlock35Some paths are disallowed for this token; others are not.
Allowed34The token is named and explicitly allowed.
Unmentioned796The file never names this token. This is not consent — the site may still close it off with a blanket rule for every crawler.

GPTBot's three-year history

GPTBot over time, 16 quarterly periods from 2023-01 to 2026-08.GPTBot rose from 0.00% at 2023-01 to 19.10% at 2026-08.0%5%10%15%20%25%2023-012023-092024-052025-012025-102026-0819.10%

A site in the historical panel first named and disallowed this token in 2023-09; its most recent reading is 19.10%.

Note: this chart reads Common Crawl's own 611-domain historical panel, not the panel behind the stance table above — a different population from the live index panel, so levels are not comparable between the two indices.

OpenAI's other tokens

Operates three separately-named tokens for three different jobs, which is why sites so often treat them differently.

TokenPurposePublished rate
ChatGPT-UserUser-initiated11.16%
OAI-SearchBotSearch10.05%

Sites that treat these tokens differently

125 domains in the panel treat OpenAI's tokens differently from one another. The first 25 are shown below.

DomainChatGPT-UserGPTBotOAI-SearchBot
abc.net.auFullBlockFullBlockUnmentioned
academia.eduPartialBlockFullBlockPartialBlock
aftonbladet.seUnmentionedUnmentionedPartialBlock
airbnb.comPartialBlockFullBlockPartialBlock
alibaba.comUnmentionedFullBlockUnmentioned
aljazeera.comFullBlockFullBlockUnmentioned
amazonvideo.comFullBlockUnmentionedUnmentioned
android.comUnmentionedPartialBlockPartialBlock
aol.comPartialBlockFullBlockUnmentioned
apnews.comUnmentionedFullBlockUnmentioned
archiveofourown.orgFullBlockFullBlockUnmentioned
bandcamp.comUnmentionedFullBlockUnmentioned
behance.netUnmentionedFullBlockUnmentioned
bidmachine.ioUnmentionedFullBlockAllowed
bloomberg.comAllowedFullBlockAllowed
branch.ioUnmentionedAllowedUnmentioned
bt.dkUnmentionedFullBlockUnmentioned
buzzfeed.comUnmentionedFullBlockUnmentioned
cambridge.orgFullBlockUnmentionedUnmentioned
canva.comUnmentionedFullBlockUnmentioned
cbsnews.comUnmentionedFullBlockUnmentioned
cisco.comUnmentionedAllowedUnmentioned
cloudflare.comAllowedAllowedUnmentioned
cookpad.comFullBlockFullBlockUnmentioned
corriere.itFullBlockFullBlockAllowed