Google said that with the popularity of smartphones and mobile Internet, the search needs of global users have also changed dramatically. And the company has a positive trend to shift to mobile in 2018. In March, Google announced that its services would switch to mobile first search mode in September. However, the latest news is that the company has postponed the delivery of the new policy to March next year.
in order to transform to the mobile first indexing method, Google crawler will conduct correlation detection on the website to analyze whether its desktop version has enough optimization for mobile platform.
although Google increased its publicity efforts in July last year, it still encountered some problems in urging the website to transform to mobile first index.
for example, if the same crawler metadata tag (Noindex or nofollow) is used on the mobile version, Google may not be able to index pages or track links on pages after the mobile first indexing function is enabled.
secondly, when loading images and videos, the delay loading phenomenon of mobile platform is more common than that of desktop platform. Google’s advice is to follow the best solution, especially to avoid delaying the loading of major content based on user interaction (sliding, clicking, or typing), because Google crawlers do not trigger these interactions.
third, the URLs of some resources on the mobile platform are not the same as the desktop version, and sometimes they are provided on different hosts. If the website wants to be correctly captured by Google, please make sure it is not in the robots.txt Notes in documents are disabled.
in summary, Google encourages webmasters to provide consistent main content for desktop and mobile platforms. If you plan to make the content of the mobile version less than that of the desktop version, when Google enables the mobile first indexing function for your website, it is likely to cause a certain amount of traffic loss, because Google will not be able to obtain more comprehensive content at that time.
Finally, Google suggests that the website can ensure that the images with high resolution are presented and that the alt attribute is implemented in the appropriate place so that it can be correctly captured by search engines.