I ask because a few of my servers are currently being scanned by 5+ bots: Bing, Google, Baidu, Sougu, and Yandex, along with Google's mobile bots and others. Is this just bad luck or could something have prompted all of these bots to scan my sites?These sites have been up for a long time, and only one has had any recent changes. Even those changes were minor.
What would prompt multiple web crawlers to scan a site?
webserver;web crawlers;googlebot