I would like to find out from which page url a user has converted for a goal. Currently I don’t see any clear values for this in the report (numbers like 0.25) and URLs on which you can’t convert for the goal. I assume it has to do with attribution?
How can I get a report that only contains the URL on which the conversion was made and the number of conversions?
Cunstom Reports aren’t a solution since they only contain the data of the last 30 days.
As you correctly suspect, the pages listed under Goals are an (linear) attribution. The value shows which pages were accessed before the conversion.
There is no direct reporting solution for your issue. The custom report does not reveal this information either.
My approach in my projects is that if this information is required (for many goals you don’t need this information because the goal can only be achieved on a very specific page) I track this information as part of an event tracking (e.g. as an event action).
Another note about the 30 days: this is a setting in the Matomo Cloud. After consulting support, you can have the value changed. With On Premise there is no such restriction.