networking

How can I check my TTL from an external nameserver?

You can check the TTL using commands like dig and host. With dig, you can specify an external nameserver to check from.

dig @8.8.8.8+nocmd +noall +answer A domain.com

Using the host command, you can use something like this:

host -v -t a domain.com

There are many public nameservers you can query from. A few of them are listed below:

Google

8.8.8.8
8.8.4.4

Verizon
151.197.0.38
151.197.0.39

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