Hello,
The proposal is to add a link to mapzs in the route description alongside the existing maps if the route exists there. How to implement this technically is another question, whether manually, through suggestions from site visitors, some more intelligent programmatic "matching" by keywords, geolocation etc..
The second proposal relates to the first, mapzs provides information if a route section is closed and exposes this info via API, e.g.:
https://mapzs.pzs.si/api/tracks/32655/detailed -> closedSections
This information could be shown in the route description and thus warn the reader that the route or at least a section is closed.