> For the complete documentation index, see [llms.txt](https://adagio-io.gitbook.io/adagio-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://adagio-io.gitbook.io/adagio-documentation/openrtb-s2s-endpoint/review-your-technical-integration/round-trip-time.md).

# Round Trip Time

Monetization is highly sensitive to latency, especially App monetization. Test each regional server to estimate the time to reach the nearest Adagio server.

{% hint style="success" %}
Have your Tech (DevOps) team run the following command on each regional server and forward the results to your [Solution Engineer](mailto:se@adagio.io).
{% endhint %}

{% hint style="warning" %}
Note that for each region the prefix of our endpoint changes in `https://<prefix>.4dex.io/healthcheck`
{% endhint %}

{% tabs %}
{% tab title="EMEA" %}
{% code overflow="wrap" %}

```bash
for i in {1..5}; do curl -w "\nDNS: %{time_namelookup}s\nConnect: %{time_connect}s\nTTFB: %{time_starttransfer}s\nTotal: %{time_total}s\n" -o /dev/null -s https://mp-ams.4dex.io/healthcheck; done
```

{% endcode %}
{% endtab %}

{% tab title="AMER" %}

<pre class="language-bash" data-overflow="wrap"><code class="lang-bash"><strong>for i in {1..5}; do curl -w "\nDNS: %{time_namelookup}s\nConnect: %{time_connect}s\nTTFB: %{time_starttransfer}s\nTotal: %{time_total}s\n" -o /dev/null -s https://mp-las.4dex.io/healthcheck; done
</strong></code></pre>

{% endtab %}

{% tab title="APAC" %}
{% code overflow="wrap" %}

```bash
for i in {1..5}; do curl -w "\nDNS: %{time_namelookup}s\nConnect: %{time_connect}s\nTTFB: %{time_starttransfer}s\nTotal: %{time_total}s\n" -o /dev/null -s https://mp-tyo.4dex.io/healthcheck; done
```

{% endcode %}
{% endtab %}
{% endtabs %}


---

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