This is an old post so I hope you found an answer. I hate seeing unanswered questions when they show up in my searches so I'm posting some possible solutions. I'm assuming from your question that this is not about access and anyone from any country c...

Hi Elyess,I’m still pretty new to Looker, but I use Content Validator (nearly) every day to check for broken content. It’s under the Develop menu and will show you what is wrong and provide you with the option to remove or replace the broken content,...