If the pages were not optimized for mobile devices, the chances of being penalized were very high. According to Google this update According to Google, this update had more visible effects than Panda and Penguin. Rankbrain ()Rankbrain makes Google “understand” unknown or unique queries and make an association with existing results to offer those that may make sense to the user.
If the software comes into contact with a phrase that is unfamiliar, it can guess chinese singapore phone number list words or phrases that could mean the same thing instead of not showing any results to the user. Fred ()Fred is another of Google's updates and was responsible for identifying sites that forced “Black Hat” strategies, those famous ways of trying to circumvent the search engine to appear in the top positions and aggressively increase monetization.
They can be: excessive ads They can be: excessive ads that harm the user experience on the page; we have already mentioned in the content; content on completely random and different topics, with the sole objective of acquiring traffic; aggressive monetization. Mobile-first index ()In this update, Google started to prioritize the mobile version of a website when ranking it.