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Explain ALIAS record in the context of Route 53.
  • CNAME record can be used to point traffic from one domain (e.g. play.steam.com) to another domain (e.g. steampowered.com).
  • ALIAS record is similar to CNAME record, but unlike the CNAME record, ALIAS record can be applied to the apex domain.
  • Apex domain is the "root" level of your domain. For example, mywebsite.com is an apex domain, whereas www.mywebsite.com or tv.mywebsite.com are not apex domains.
  • For example, you can use the ALIAS record to point the apex domain to a CloudFront distribution.