Google mobile first indexing.
Google announced that all new websites will be ranked and indexed based on how well it is designed for mobile devices. It’s called Mobile First indexing. Although this update will preliminarily affect all new websites that are launched from July 1st onwards, older sites will be given a grace period of couple months to update their content to be optimised for mobile phones and tablets.
If you need more help with this crucial update or you are not too sure how your current website is affected, contact me and I can audit your pages and advise you accordingly.