How to correctly specify the defaultRoute to open the main page of the site?

Question

Yii

I need the 'site/default/index' controller to work when opening the site,
for this I write in the urlManager '' => 'site/default/index',
but now, if you open site.ru/?asdasd, it still opens the main one, but it shouldn't, tell me how to do it right?
defaultRoute prescribed, does not help

Answer 1

>but now if you open site.ru/?asdasd it still opens the main
page Are you sure this is the main page and not the 404 page, is there a different status prntscr.com/iahity ? If this is still the main one, then you need to look at the url rules.