What is my Facebook ID? User ID / Page ID

Please input the facebook personal URL Here.
It also support facebook page and groups.

Result

Facebook ID XXXXX
Meta Tag <meta property="fb:admins" content="XXXXX" />

How to get the Facebook personal URL?

  1. Click this link: https://www.facebook.com/me
  2. It will redirect to your personal facebook url, then copy the url.

Setup fb:admin in meta tag

In order to grant an admin permission to manage facebook comments plugin, you need to setup a meta tag in the page, such like 
<meta property="fb:admins" content="{FACEBOOK_USER_ID}"/>
{FACEBOOK_USER_ID} is a numeric ID