> For the complete documentation index, see [llms.txt](https://server-side.docs.sirdata.net/sirdata-server-side/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://server-side.docs.sirdata.net/sirdata-server-side/english-1/installation/dns-configuration/cloudflare.md).

# Cloudflare

Select the URL affected by the Server-Side : 

<figure><img src="https://990040211-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBXjLZzseZBBJBcPHmAEg%2Fuploads%2FabTBg5PLUyvv9NUhuVLY%2Fimage.png?alt=media&amp;token=2937cfaf-be9e-44a4-974c-a713b92d8bde" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Add a first entry with a "NS" pointing field using the subdomain you previously selected in your GTM (e.g., xyzxx) and the nameserver URL "ns1.gtm-helper.com"
{% endhint %}

**Save**

<figure><img src="https://990040211-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBXjLZzseZBBJBcPHmAEg%2Fuploads%2F7fSircxxJ3j2M77pxeUl%2Fimage.png?alt=media&amp;token=5b54fe37-7876-4007-b640-c114f743b32d" alt=""><figcaption><p>Type "NS", Name "xyzxxx", Nameserver "ns1.gtm-helper.com"</p></figcaption></figure>

{% hint style="info" %}
Repeat the operation a second time for the same subdomain, with the nameserver URL "ns2.gtm-helper.com"
{% endhint %}

<figure><img src="https://990040211-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBXjLZzseZBBJBcPHmAEg%2Fuploads%2FNnlLZdpMTaM9lRA9Da7t%2Fimage.png?alt=media&amp;token=edbeb672-be2f-4f9a-a106-c0821820f972" alt=""><figcaption><p>Type "NS", Name "xyzxxx", Nameserver "ns2.gtm-helper.com"</p></figcaption></figure>

**Save**