facebook ip ranges firewall

Copy Share URL. This configuration prevents access to these sites at the initial SYN packet from the client. If your app or website content is not available at the time of crawling, you can force a crawl once it becomes available either by passing the URL through the Sharing Debugger tool or by using the Sharing API. I have tried turning off the tcp, using address lists, everything i can think of. Any Open Graph properties need to be listed before the first 1 MB of your website or app, or it will be cutoff.

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