I run into these moments every now and then where I want to make a major update to my website but then I feel I just cant do it because search engines crawl it at that time.
Is there a way I can make the search engines temporarily stop crawling my site instantly while I make updates to it? (Yes, I'm looking for that "Off" and "On" switch)
I feel if I make updates while search engines crawl it, then I'll probably lose rankings in search.
** Update **
I'm more interested in the fraction of time that the upload takes place. I'd like to ideally arrange a time with the bots to stop crawling at that point (between the time upload starts and the time upload ends). I'm not asking for a solution for a long-term downtime.