# PanguBot: Huawei AI Crawler, What Is Known and Blocking

> Third-party bot lists link PanguBot to Huawei PanGu AI training, but Huawei does not document it. How to block it in robots.txt and nginx.

PanguBot is a user agent that third-party bot lists connect to Huawei and to the training of its PanGu AI models. Huawei does not publish documentation for a crawler with this name. If you do not want it on your site, add a robots.txt group and also block the token on your server.

## What is known

Huawei documents one web crawler, [PetalBot](/ai-crawler-bot/petalbot/), for Petal Search. A search in October 2026 found no Huawei page that describes a crawler named PanguBot. There is no published user-agent string, IP list or robots.txt statement from Huawei.

Third-party bot lists fill the gap. For example, [Known Agents](https://knownagents.com/agents/pangubot) says that PanguBot downloads training data for PanGu, Huawei's multimodal large language model. These lists do not agree on the full user-agent string. Known Agents lists this one:

```
Mozilla/5.0 (compatible;PanguBot;pangubot@huawei.com)
```

Other lists show different strings. All of them contain the token `PanguBot`.

## Do not confuse it with Pangu Bot on Huawei Cloud

Huawei Cloud sells a chatbot service named Pangu Bot. Its [service overview](https://support.huaweicloud.com/intl/en-us/productdesc-pangubot/01%20Service%20Overview-pdf.pdf) describes a dialogue platform that companies use to build question-and-answer chatbots. That product is not a web crawler.

## Block PanguBot in robots.txt

robots.txt is a text file at the root of your site with rules for crawlers. Crawlers match groups by name without regard to letter case, as [RFC 9309](https://www.rfc-editor.org/rfc/rfc9309) requires. If you want to block PanguBot, add this group:

```
User-agent: PanguBot
Disallow: /
```

Huawei does not say that PanguBot obeys robots.txt. RFC 9309 also states that robots.txt rules "are not a form of access authorization". If you want to make sure that the requests stop, also block them on your server.

## Block PanguBot on the server

This nginx example returns HTTP 403 for any user agent that contains the token:

```nginx
if ($http_user_agent ~* "PanguBot") {
    return 403;
}
```

Put the example in the `server` block of your site configuration, then reload nginx.

## Verify requests

Huawei publishes no IP list and no reverse DNS method for PanguBot. You cannot prove that a request with this token comes from Huawei. A user-agent block stops all requests with the token, real or not.

## What a block changes

A PanguBot group in robots.txt does not apply to PetalBot, because each crawler uses its own token. A block of PanguBot alone does not remove your site from Petal Search.

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[View the canonical page](https://aichatwatch.com/ai-crawler-bot/pangubot/) · [Browse llms.txt](https://aichatwatch.com/llms.txt)