---
title: "NS1"
date: 2019-03-03T16:39:46+01:00
draft: false
slug: ns1
---

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Since: v0.4.0

Configuration for [NS1](https://ns1.com).


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- Code: `ns1`

{{% notice note %}}
_Please contribute by adding a CLI example._
{{% /notice %}}




## Credentials

| Environment Variable Name | Description |
|-----------------------|-------------|
| `NS1_API_KEY` | API key |

The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
More information [here](/lego/dns/#configuration-and-credentials).


## Additional Configuration

| Environment Variable Name | Description |
|--------------------------------|-------------|
| `NS1_HTTP_TIMEOUT` | API request timeout |
| `NS1_POLLING_INTERVAL` | Time between DNS propagation check |
| `NS1_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
| `NS1_TTL` | The TTL of the TXT record used for the DNS challenge |

The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
More information [here](/lego/dns/#configuration-and-credentials).




## More information

- [API documentation](https://ns1.com/api)
- [Go client](https://github.com/ns1/ns1-go)

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