The live Url generated by Builder (https://****.builder.live) is classified as phishing.
We actually run into problems where we have to disable our antivirus software to make it works. This is really annonying.
We have contacted your support suggesting us to change the dns but it doesn’t comply with our security policies.
When we run an online reputation test on the Builder Live website, it appears like a phishing website. You can do it here https://talosintelligence.com/reputation_center and check by yourself
The builder.live domain is for customers that haven’t fully integrated with an existing site and need a temporary preview. We suggest fully integrating Builder with your site and setting up a real preview URL.
All of the content living on the builder.lives domain is user-generated, and it’s possible that third-party services categorize some content as suspicious. If you aren’t ready to set up a working preview URL, we would suggest ensuring that the relevant Builder domains are on your security providers allow list.