The bang !tldr redirects to https://tldr.ostera.io/, which seems to be offline.
From archive.org, it seems like it's down since May 2023: https://web.archive.org/web/20240000000000*/https://tldr.ostera.io/.
tldr's homepage (https://tldr.sh/) points to https://tldr.inbrowser.app/ as the current live demo.
This bang seems to originate from duckduckgo, and they currently redirect to the correct page (https://duck.com/?&q=!tldr).
A redirect to a live tldr page is expected. For anyone finding this before it's fixed, you can work around it with a custom bang to https://tldr.inbrowser.app/search?query=%s.
