Problem with URL as it required login

I need to test the performance of a webpage for my project but the issue is I cannot put the URL like other websites because it is an online banking site and if you do not login, they cancel the request.
Any suggestions?

You can script a login (look at the script tab for a link to the documentation). Needless to say, I don’t recommend doing it with a real account with significant funds in case the credentials leak. There’s also a good chance the automated login will get blocked depending on what their bot protections do.