Do I need to lower TTL of all records

Question

OK I am ready to migrate my dns to amazon but  
I was thinking to lower ttl of A records and NS – Name servers only  to 300  
Do I need to lower the ttl of all records?   
won't those two be sufficent ?  
  
Edited by: letmeaskplease on Feb 11, 2020 7:37 AM

Answer

Hi,  
  
You're correct that lowering the TTL of the NS record is sufficient. The _Route 53 Developer Guide_ includes a detailed process for migrating DNS to Route 53:  
  
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/migrate-dns-domain-in-use.html  
  
Actual hands-on work doesn't take long unless you need to create a lot of records. However, if you follow the entire process, it'll take a couple of days altogether because you need to wait for the TTL to expire on the NS records. Customers who have used this doc to migrate DNS for active websites have reported success, including with keeping their website up the whole time.  
  
Scott

Do I need to lower TTL of all records

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