I've got a 6-year old site with 2700+ backlinks. I'm seeing Title and Meta Description updates appear on Google within 12 hours typically. I'm seeing new pages appear in 3-6 days. On a page where the title didn't have any keywords, then I changed it to have the keywords, I see the title update but the rank doesn't change, nor has the page preview changed (as I changed the page content a little also). What I want to determine is, did Google Re-index it and the changes just didn't cause a rank change or has Google not re-indexed it yet? What's the indicator to look for that it has been re-indexed so you can see if your changes just didn't make any rank change? I thought the "dance" was a thing of the past and Google is constantly re-indexing instead of doing it every couple of weeks? More interestingly, why doesn't a page re-index instantly once it is re-crawled? What is Google doing to take more time to re-index after the crawl? I would think the rank is always determined in real-time when the search is performed. Or is the re-index actually happening when you see the Title update, it's just that it's rank didn't change?