This add on can help you check if a give domain (or domains) is using Google Workspace
Listing updated:October 27, 2022
Works with:
35K+
Overview
Simply enter the domain names in Google Sheet column -> Run the Add on --> It will put which domains are using (or not using) Google Workspace in front of them.

Regards,
Goldy Arora
G Suite Certified Consultant
https://www.goldyarora.com
Additional information
PricingFree of charge
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Domain Checker for Google Workspace will ask for the permissions shown below. Learn more
Domain Checker for Google Workspace will need access to your Google account
This will allow Domain Checker for Google Workspace to :
See, edit, create, and delete all your Google Sheets spreadsheets
Connect to an external service
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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