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CDN Resource Domains

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Content can be distributed via the default domain and a custom domain.

Default domain

A default domain of the *.selcdn.net type is automatically generated when creating a CDN resource. An example of a default domain is a051e1d7-9f5d-4325-a2d3-947e4cd635a3.selcdn.net.

A (TLS)SSL certificate is automatically issued for the default domain. Content is distributed via the HTTPS protocol.

You can view the default domain in the Control Panel: in the top menu, click Products → CDN → CDN Resources → CDN resource page → General.

We recommend adding a custom domain to your CDN resource — using third-party domains may hinder site promotion and affect search engine rankings.

Custom domain

Content can be distributed under your own (custom) domain. In this case, requests will be forwarded to the default domain via a CNAME record.

Only a third-level subdomain of a primary domain can be used as a custom domain, for example, cdn.example.com for example.com. You cannot use a primary domain as a custom domain.

For a custom domain, you need to issue a TLS (SSL) certificate or upload a custom certificate.

You can add a custom domain by following the instructions in Add a custom domain to a CDN resource.