Originally Posted by aim
Maybe your SEO position has been improved due to some of these changes.
It seems you are in the green zone
Could you ask your hosting for the bot's HTTP_USER_AGENT?
Maybe our XCRobots::getRobotsSignatures() method has to be corrected.
It should help to reduce the amount of MySQL queries.
Google page speed insight results have in fact improved drastically both for mobile and desktop. Thanks for that!
The most heavily active bots for the past few days were MJ12bot (200K+ hits & 4.8+ gigs), Semrushbot, Baidu, and some others. There are a couple of Unknown bots as well.