I've been knee-deep in indexing data for the last 6 months, tracking hundreds of pages daily. Here's what I've discovered:

• The 24-hour index flip buckle up because your page's index status can change faster than you can say "SEO"! One day it's in, the next it's out. But don't be fooled - Google's been watching that page for 2-6 months before making the call. Keep a close eye on your money-making pages, folks!
• Clickstream data Google's not just guessing - they're using our clicks! There's solid proof that Google uses clickstream info to decide if a page stays in the index. When I looked at de-indexed pages, I saw a clear link between low engagement and getting kicked out of the index.

• The folder-level smackdown is a pattern that keeps popping up: Google's de-indexing entire folders at once. They're smart cookies - they can tell when many pages in a directory use the same low-quality template. Next thing you know, poof! The whole folder's gone from the index. Make sure you're not letting crummy pages drag down your important directories!
• The indexing nosedive ever seen a page go from hero to zero in Google's eyes? It happens, especially to those sad, ignored pages with zero engagement. Google's basically saying, "This page is so meh, we're gonna bury it."

• Crawling and Indexing: It's complicated to hold onto your hats because this one shocked even me. Google doesn't need to recrawl your page to change its index status. They're using all those user signals to make snap judgments about whether your page deserves to show up in search results. If you catch my drift the indexing train doesn't wait for the crawling train. Don't just trust your log files - always double-check with the URL Inspection tool.

Bottom line: You better stay paranoid, friends. Keep your visitors happy, and never stop tweaking your content. Your Google rankings are counting on it!