Get the Instance information of your Salesforce Organization

3 ways to identify the instance :

1 - by viewing your browser address bar -

in the URL of your browser's address bar

2 - by viewing your Company Information -

Classic version - Setup | Company Profile | Company Information

Lightning Version - Gear icon | Setup | Company Settings | Company Information

(details in the visual)

3 - by using the nslookup command on your computer

Windows:

In the Run box - type - cmd | press enter. (to open this dialog - Hold the Windows key and press R.)

After a command prompt appears, type - nslookup example.my.salesforce.com (replace example with your My Domain).

scroll down and you will see a line that starts with "Name:" The naXX afterwards will be your instance name.

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