MistralAI-User
MistralAI-User is blocked by 426 sites in the October 2026 survey, or 6.9% of readable files. The community reference lists its operator as Mistral.
Who runs MistralAI-User?
| Fact | MistralAI-User reference entry |
|---|---|
| Operator | “Mistral” / “Mistral AI” |
| Purpose | “AI Assistants” / “Takes action based on user prompts.” |
| Does MistralAI-User obey robots.txt? | “Unclear at this time.” / “Yes” |
| Frequency | “Unclear at this time.” / “Only when prompted by a user.” |
| Cloudflare managed list for MistralAI-User | No |
These facts quote the stored community ai.robots.txt reference.
“MistralAI-User is Mistral's AI assistant bot that performs web browsing and data gathering tasks for users in Le Chat, including opening web pages and retrieving informat…”
The stated role here is an AI assistant. Helping people find a page through search is a different use from using its contents to train a model, so owners may allow those visits separately.
How many sites block it?
The 426 files blocking the whole site account for 6.9% of 6,171 readable robots.txt files. We found its name in 244 User-agent lists, a 4.0% share. Without a whole-site Disallow: / block, 5,745 files remain.
For the top 1,000 ranks, its name appears in 44 files out of 552, or 8.0%. Whole-site blocks total 72. Blocking is more common among the leading sites, at 13.0%. Lower in the ranking, blocking reaches 354 files out of 5,619, a 6.3% share.
| Readable files | Named by | Named share | Blocked by | Blocked share |
|---|---|---|---|---|
| MistralAI-User, all ranks | 244 | 4.0% | 426 | 6.9% |
| MistralAI-User, top 1,000 | 44 | 8.0% | 72 | 13.0% |
| MistralAI-User, remaining ranks | 200 | 3.6% | 354 | 6.3% |
A general User-agent: * ban contributes to this total whenever it applies to this crawler. Of 426 blocks, 232 come only from that general rule, without naming this crawler. The overlap between naming and blocking is 194 files. Naming without a whole-site ban accounts for 50, and 5,927 files never name it. We ignore capitalization and repeated names.
Has that changed since August?
Between August and October, 16 sites that had blocked it stopped and 24 started, so 8 more of the same 5,889 sites block it. A further 370 blocked it in both months, and 5,479 did so in neither. Keeping the sites the same lets us count changes in their rules.
August’s full sample had 406 blocks among 6,236 readable files. October’s was 426 among 6,171. Those monthly totals also reflect which files we could read on each visit.
| August to October | Files |
|---|---|
| Started blocking | 24 |
| Stopped blocking | 16 |
| Blocked in both | 370 |
| Blocked in neither | 5,479 |
| Net change | +8 |
How to block or allow it
The examples include the spelling variants counted together here. Edit the root robots.txt file on your site. The robots.txt standard gives a MistralAI-User group precedence over User-agent: * for this crawler.
Block the whole site
User-agent: MistralAI-User
User-agent: MistralAI-User/1.0
Disallow: /Allow access
User-agent: MistralAI-User
User-agent: MistralAI-User/1.0
Allow: /It's the 35th most-named crawler of the 171 we counted in the crawler index.
Which other crawlers does this operator run?
How we counted
For MistralAI-User, on 19 October 2026, we requested robots.txt from Tranco’s top 10,000 sites. An 8-second wait or a file over 262,144 bytes ended a read. Missing, unreachable and oversized files do not contribute to these shares. Collection and repeat readings used scripts/robots_2026_08_06.py (robots.py at app commit 07104ff). See the full survey method.
Common questions
Does a User-agent line mean it is blocked?
A name identifies the crawler addressed by a group. The survey found 50 files with that name and no recorded whole-site ban, out of 244.
What do the top-ranked sites show?
Its name appears in 8.0% of readable leading files and 4.0% overall. Blocking affects 13.0% in the leading group and 6.9% in all ranks.
Which nearby entry can I compare?
GoogleOther is named by 232 files and blocked by 371, or 6.0%. For this crawler, 244 files name it and 426 block it, a 6.9% share.