Update CNAME record without downtime

Website, Application, Performance Getting Started
1

We want to use a backup server, when the website goes down.

Public website: example.com
Running server: example.aws.com
Backup server: example2.aws.com

How can we use the backup server without downtime?

If we update the CNAME record, it takes some time before it is working.

Can we use Cloudflare load balancer?

3

You can’t use Cloudflare DNS for failover, but you can do it with the Load Balancer:

https://support.cloudflare.com/hc/en-us/articles/115000081911-Tutorial-How-to-Set-Up-Load-Balancing-Intelligent-Failover-on-Cloudflare

4

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