# tcpcheck

Source: https://www.pingtower.com/docs/addons/tcpcheck/

Connect to a port and say how long it took, with DNS timed apart from the connect.

## Parameters

| Parameter | Default | Meaning |
| --- | --- | --- |
| `address`<span class="req">REQUIRED</span> | | `host:port`. |
| `max_connect` | | Connect time above this is **degraded**. |

A refused or timed-out connect is **down**.

## Measurements

`dns_ms`, `connect_ms`, `total_ms`.