Minor correction if we go by my own anecdotal evidence: > When is a link scraped and stored in Facebook’s database? > From my testing I assume that a link is

Minor correction if we go by my own anecdotal evidence: > When is a link scraped and stored in Facebook’s database? > From my testing I assume that a link is stored in Facebook’s database from the moment someone actually clicks it on Facebook. This does not apply to links shared through Facebook which no one clicks on. Watching server logs at the time I paste the link, the link is scraped immediately. Before you even hit send immediately. I imagine they do this so that they can populate the little preview window if you've pasted something that has an og:image or other rich media. If you paste it, it's instant, otherwise if you're manually typing the link it seems to wait for you to type a space character.