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LDC CoreTools Support

CoreTools supports the following browsers
  • Chrome
  • Safari
  • Firefox
  • Internet Explorer 11 or higher.
Since older versions of Internet Explorer  do not support modern capabilities supported by other major browsers, we've discontinued support for Internet Explorer older than 11.  Please upgrade to Internet Explorer 11 (launched on October 17, 2013) or another major browser.
This can happen when firewalls, web filters, or other network infrastructure is impeding your connection to LDC CoreTools. Please check with your network administrators. They will need to provide you with access to these sites to solve the problem:
  • api.ldc.org
  • coretools.ldc.org
  • themes.googleusercontent.com
  • cloudfront.net
  • ws.pusherapp.com
  • https://stats.pusher.com
  • https://stats.g.doubleclick.net
  • s3.amazonaws.com
  • google-analytics.com
  • api.rollbar.com
  • https://fonts.gstatic.com
  • https://platform.twitter.com
  • syndication.twimg.com
  • twimg.com
  • www.youtube.com
On some rare occasions, attachments fail to load to our servers. This is commonly due to network connectivity problems that you may be experiencing. Unfortunately, when this happens we no longer have access to that resource. The solution is to delete the reference to the attachment in your module, attempt to re-upload it, and then re-export your module to PDF.

Sorry to hear that. Please go to the LDC Courses Feedback form to get a quicker response about your issue.


LDC CoreTools Support Request

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