Netlify validates that the certificate matches the custom domain for your site and that the DNS record for the domain is pointed at Netlify, then installs your certificate. For automatic renewal, you can switch to a Netlify-managed certificate.

You will need to renew it at your Certificate Authority, then follow the steps above to install it on your Netlify site. When the time comes to renew your custom certificate, Netlify cannot do this automatically. For tips on specific formatting and the contents of the certificate, visit our Forums for a verified support guide on custom SSL certificates. In Site settings > Domain management > HTTPS, select Set Custom Certificate, then enter the information above.

a chain of intermediary certificates from your Certificate Authority (CA).

the private key you used to request the certificate.

the certificate itself, in X.509 PEM format (usually a.

If you already have a certificate for your domain and prefer that to Netlify’s domain-validated certificate, you can install your own.

Please do this before adding any aliases! # Custom certificates In that case we recommend you provide your own wildcard certificate using Netlify DNS or contact support for our assistance for getting them set up with our certificate provider.

If you have more than 5 aliases that are subdomains of the same domain, you might run into rate limits with our certificate provider.

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