Message that a site I’ve used is unsafe

I am getting “we recommend you do not use this site” for a credit union I opened an account with last week. The Support section for IPads says the alert should also have a button for More Details but that isn’t there. I can’t even bypass it. Another page opens up. I  can hit the back button to go back, but when I try to sign in to the site I keep getting the same message from Norton. 

The site I’m trying to sign into: https://www.dcu.org/

I enter my Username & Password, I get the Norton message. I swipe the message off and this opens:

https://api.prod.projectfinance.io/api/v2/user/siteLogin/DCU

Any ideas very welcome! 
Using iPad updated to iOS 17.3, Norton 360 With LifeLock.

Thank you,

Wren

Are you using a VPN or any ad blocker apps on your iPad? If so try turning those off and test again.

It could also be some setting in the DuckDuckgo app that is interfering with your connection to the site. Norton may be seeing this as a man in the middle attack. Try disabling the DuckDuckgo app and see if you are still blocked.