hello, Im using the tagcloud from Module "K2 Tools".
Originally I have 22 items, but with the tagcloud I have about 200 items with multiple content.

For example:
domain.de/article1/itemlist/tag/mytag1
domain.de/article2/itemlist/tag/mytag1
domain.de/article3/itemlist/tag/mytag1
domain.de/article4/itemlist/tag/mytag1
domain.de/article1/itemlist/tag/mytag1
...
domain.de/article1/itemlist/tag/mytag2
domain.de/article2/itemlist/tag/mytag2
domain.de/article3/itemlist/tag/mytag2
domain.de/article4/itemlist/tag/mytag2
domain.de/article1/itemlist/tag/mytag2
...

In this example there are 10 urls, but only 2 menu items. This makes a lot of confusion for Google. Is there a possibility to avoid this?
Thank you for your help.

Yes,
Create a hidden menu item towards all K2 categories and call it eg: content. This way all orphan tags and users will render from this menu item.

thank you, this works for the category list, but not for the tagcloud.
Here is the link:
www.muench-webdesign.de/index.php/unser-angebot/
Tagcloud in the right sidebar, look at the urls...

it adds to every menu item (22) the amount of tags (x 11) =242 urls :-(

Leave the category selection blank and make sure that this menu item is placed after all other menu items.