Google says the search needs of users around the world have shifted dramatically with the popularity of smartphones and the mobile internet. The company has seen this trend change as early as 2018 and is actively considering a shift toward situated on mobile priorities. In March, Google announced that its service would switch to mobile-first search mode in September. The latest news, however, is that the company has postponed the delivery of the new policy until March next year.
In order to transition to a mobile-first indexing approach, Google Crawler detects the relevance of the site to see if its desktop version is sufficiently optimized for mobile platforms.
While Google stepped up its campaign last July, it has run into problems in urging the site to shift to a mobile-first index.
For example, if you use the same reptile metadata tag (noindex or nofollow) on the mobile version, Google may not be able to index a page or track connections on a page after the site has enabled mobile-first indexing.
Second, when loading images and videos, mobile platforms are more common than desktop platforms for late loading. Google’s advice is to follow the best solution, especially to avoid delaying loading the main content based on user interactions (sliding, tapping, or typing) because Google crawlers do not trigger those interactions.
Third, some resources have different URLs on mobile platforms than desktop versions, and are even available on different hosts. If the site wants to be crawled correctly by Google, also make sure that the comments are not disabled in the robots.txt document.
All in all, Google encourages webmasters to provide consistent key content for desktop and mobile platforms. If you plan to make the mobile version less content than the desktop version, it’s likely to result in a loss of traffic when Google enables mobile-first indexing for your site, because Google won’t be able to get more comprehensive content at that time.
Finally, Google recommends that websites ensure that images with high resolution are presented and that the alt attribute sit in place so that they can be properly crawled by search engines.