# Public instances
Otterscan is meant to be run in your own environment (see [install instructions](./install)).
However, we host some testnet instances as a showcase of our features:
- Sepolia testnet:
- Holesky testnet:
- Hoodi testnet:
## Third parties
### Test in Prod
[Test in Prod](https://www.testinprod.io/), the makers of [OP-Erigon](https://github.com/testinprod-io/op-erigon/), also host instances for [Optimism L2](https://www.optimism.io/):
- OP-Sepolia testnet:
- OP-Mainnet:
### Ephemery
[Ephemery](https://github.com/ephemery-testnet/ephemery-resources) has a public instance pointing to the latest iteration at .