# Degraded performance on crates.io

- Provider: [crates.io](https://down.guide/crates-io)
- Level: confirmed
- Impact: Degraded
- lasted 1h 18m
- started 2025-11-10 23:56 UTC
- crates.io
- id: DWN-38d2f60779
- Official page: https://stspg.io/1yqnhbw3zgfb

## Updates from crates.io
### 2025-11-10 23:56 UTC: investigating
crates.io is currently experiencing degraded performance on any requests that hit the database (which is basically anything in the API except crate downloads). We are investigating.

### 2025-11-11 00:15 UTC: identified
The slowdown is definitely database related, and we are in contact with our upstream provider to see if we can track down what the root cause might be.

### 2025-11-11 01:04 UTC: monitoring
The 2025 version of "it's always DNS" might be "it's always AI scrapers pretending to be other things".
Our database provider pointed out an expensive endpoint that was being hit just enough by a single IP to cause the incident, but not enough for our normal monitoring setup to detect it. We have blocked that IP and response times appear to be returning to normal.
Continuing to monitor for a few minutes, but this looks good at the moment.

### 2025-11-11 01:14 UTC: resolved
Everything continues to look stable, so we can consider this resolved.

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