This can vary depending on the social network where content is shared and the way the content was shared.
When updates are posted to Twitter and LinkedIn, the URL is often replaced by a proprietary URL (e.g., "t.co/" for Twitter). If the URL appears in the middle of a sentence, within the shared post, then the pls.sh URL is often displayed.
Even if the pls.sh URL does not appear in an update posted by Please Share, click tracking details are still captured.