> For the complete documentation index, see [llms.txt](https://docs.link11.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.link11.com/product-guides/secure-cdn/setup.md).

# Setup

## Prerequisites

* DNS access for the relevant domain(s)
* CNAME(s) provided by Link11 CSM
* Your decisions about which caching structure to use (either [static or full-page caching](/product-guides/secure-cdn/faq/static-vs-full-page-caching.md)), and if you're also using Link11 WAAP services with the CDN, [which architecture to use](/product-guides/secure-cdn/faq/link11-cdn-deployment-with-waap-products.md). 

## Setup

Each customer domain receives one specific CNAME record in the Link11 Secure DNS service. This CNAME resolves to the closest Link11 CDN Node to facilitate global load balancing.

To use the Link11 CDN, customers need to change their DNS A-Record for the website e.g. "<http://www.example.com>" to point to the Link11 provided CNAME e.g. "a1724431.l11cdn.net".

Example bind configuration:

`zone file fragment for example.com`\
`www IN CNAME a1724431.l11cdn.net`

Please note that depending on the TTL values configured with the DNS provider, it may take some time to fully propagate the DNS record change to all DNS servers.

Once the record is pointed to the Link11 CNAME and the change has fully propagated, all requests for the domain will be routed over the Link11 CDN, and content will being to be stored in the Link11 CDN nodes.

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