# DNS Resolver Check

#### Resolver <a href="#dnsresolvercheck-resolver" id="dnsresolvercheck-resolver"></a>

A DNS Resolver is part of a **DNS Server**. It navigates the **DNS** tree to find any available DNS data. The **Resolver** check tests the iterative ability of a DNS Resolver.

#### Check Info <a href="#dnsresolvercheck-checkinfo" id="dnsresolvercheck-checkinfo"></a>

<figure><img src="/files/jZVlG9fV5i2wQ9WEosqv" alt=""><figcaption></figcaption></figure>

#### Check Configuration <a href="#dnsresolvercheck-checkconfiguration" id="dnsresolvercheck-checkconfiguration"></a>

<figure><img src="/files/44LInk6N1oH43AenT4ws" alt=""><figcaption></figcaption></figure>

#### Check Result <a href="#dnsresolvercheck-checkresult" id="dnsresolvercheck-checkresult"></a>

<figure><img src="/files/mlk2kElArN0r3toAzWwX" alt=""><figcaption></figcaption></figure>

#### Usage <a href="#dnsresolvercheck-usage" id="dnsresolvercheck-usage"></a>

The test record used in the check can’t be stored in the resolver cache and need to be iterated each time.

This check is useful if you have one or more open resolvers for public use or you can use it on the internal resolver if you allow access from the agent (or if you have deployed a local agent on your network).


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# 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:

```
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```

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.
