title: How to force update Facebook's scraper cache?
body: <p>I'm having some troubles with facebook's scraper after migrating my project to a new server,
  after changing my DNS server to point to the new server's IP, Facebook's scraper still hits the old IP, which makes me wonder if there's a way to force the scraper to update it's DNS cache ?</p>
  <p>On the old box I'm giving back a short max-age for the Cache-Control header <code>Cache-Control: max-age=300</code>, the situation has been going on since the migration approx. one week ago</p>
  <p>I can't seem to find any relevant solutions on SO or even Facebook's documentation..</p>
  <p>The only relevant tip I've <a href="http://ivetetecedor.com/how-to-force-facebook-to-re-scrape-your-url/" rel="nofollow noreferrer">come across</a> so far is manually using Facebook's Linter against the URL, which forces the cache to update, but with over 10Mil image shares it's obviously not the way to go for me.</p>
  <p>All the shared items I'm talking about are absolute URLS to JPEGs.</p>
  <p>Any tips ?</p>