Getting an Expired Domain Indexed

Hey guys! Wonder if you can help.

I've built out sites on expired domains before, and normally the articles I put on get indexed, occasionally they don't, in which case I assume a penalty and eventually give up.

I have a site which I've picked up expired and built my own content on. The old content is showing on google (even though it's not on the site anymore), the new content isn't. It's been on a little while now. What can I do to encourage google to index? Will it ever?

There are a couple of ways you can do that.

Externally you can go here and submit each url:

https://www.google.com/webmasters/tools/submit-url

Internally you can use GWT:

will using GWT be bad, if OP is setting up a PBN?

No not really just don't put all your sites in one account and let them sit there, just delete the site from WMT when your done fetching it.

You can share it on some social networks, get it recrawled again. It'll fix up the content real quick.