# DNS-over-HTTPS

This is a read-only/monitoring "registrar". It does a DNS NS lookup to confirm the nameserver servers are correct. This "registrar" is unable to update/correct the NS servers but will alert you if they are incorrect. A common use of this provider is when the domain is with a registrar that does not have an API.

### Configuration

To use this provider, add an entry to `creds.json` with `TYPE` set to `DNSOVERHTTPS`.

{% code title="creds.json" %}

```json
{
  "dohdefault": {
    "TYPE": "DNSOVERHTTPS"
  }
}
```

{% endcode %}

The DNS-over-HTTPS provider defaults to using Google Public DNS however you may configure an alternative RFC 8484 DoH provider using the `host` parameter.

Example:

{% code title="creds.json" %}

```json
{
  "dohcloudflare": {
    "TYPE": "DNSOVERHTTPS",
    "host": "cloudflare-dns.com"
  }
}
```

{% endcode %}

Some common DoH providers are:

* `cloudflare-dns.com` ([Cloudflare](https://developers.cloudflare.com/1.1.1.1/dns-over-https))
* `9.9.9.9` ([Quad9](https://www.quad9.net/about/))
* `dns.google` ([Google Public DNS](https://developers.google.com/speed/public-dns/docs/doh))

### Metadata

This provider does not recognize any special metadata fields unique to DOH.

### Usage

An example configuration:

{% code title="dnsconfig.js" %}

```javascript
var REG_MONITOR = NewRegistrar("dohcloudflare");

D("example.com", REG_MONITOR,
  NAMESERVER("ns1.example.com."),
  NAMESERVER("ns2.example.com."),
);
```

{% endcode %}

{% hint style="info" %}
**NOTE**: This checks the NS records via a DNS query. It does not check the registrar's delegation (i.e. the `Name Server:` field in whois). In theory these are the same thing but there may be situations where they are not.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.dnscontrol.org/provider/dnsoverhttps.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.