Google officially started switching to mobile first index

byEdho Pratama

After testing over a year and a half, we announced that Google will move to mobile first index. It is said that the transition will be made sequentially from the site that is ready.

Official Google Webmaster Central Blog: Rolling out mobile-first indexing
https://webmasters.googleblog.com/2018/03/rolling-out-mobile-first-indexing.html


Best practices for mobile-first indexing | Search | Google Developers
https://developers.google.com/search/mobile-sites/mobile-first-indexing

Here is a summary of Google's announcement.

◆ 1:
Mobile First Index will be used more extensively. Mobile First Index does not affect the ranking of Google search results,Mobile friendly testIt is operated separately.
◆ 2:
On the other hand, making mobile-friendly content is useful for better performance in mobile search.
◆ 3:
Creating fast loading content also helps mobile & desktop websites improve performance.
◆ 4:
As the ranking is determined by a number of factors, if the Google side judges it to be "highly relevant", content that is slower in reading speed than the mobile friendly may be displayed in the top ranking.

Google's indexing and ranking system used contents of the desktop version website so far but due to the diversity of mobile terminals, mobile users sometimes displayed contents difficult to see. Since search from mobile terminals is increasing in recent years, Google aims to solve such problems by using mobile version content.

Whether the index is used as desktop version or mobile version by using Mobile First Index, it is not so, it is said that index is one to the last. In other words, Google simply shifts the base content of index creation from "desktop version" to "mobile version". In addition, it seems that contents displayed in Google search results and cache are also switched to the mobile version page.

Google is "Search Console"To notify the owner of the website and those who are doing optimization of the mobile version site will soon notice that they will see an increase in inflow from smartphone Googlebot.


GoogleGuide for developers, And the following three sites are marked as "No effect".

· Desktop version only
· Responsive · Web design
· Canonical AMP

On the other hand, the following three will be affected by this transition.

· URLs are different between mobile version and desktop version
· Dynamic delivery is done
· Have both AMP pages and non-AMP pages

However, even when switching to the mobile first index, there is no change in the ranking decision factor, and websites that have only the desktop version will still be indexed for desktop version content and subject to evaluation.