Hi there,
When the scavenging period is configured on a DNS server, the timer starts for 7 days (or whatever the configured value is). Once the timer expires, the scavenging process runs. 7 days for scavenging is a default setting, you can leave it alone or configure whatever value you want.
However, there is a simple way to speed up DNS propagation:
Define or modify an A record that points your hostname to the new destination IP address.
Set a minimal TTL for that DNS record—we recommend 5 minutes. Below that, many ISPs might ignore the TTL and retain the old record in cache.
Here is a link as well to help you out https://learn.microsoft.com/en-us/answers/questions/57082/dns-aging-and-scavenging.html
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