Google uses AI for COVID-19 information, to understand statistical data, for song recognition, and for many more thinks. Here are the most important search related facts:

Spelling in search queries

One in 10 queries on Google are misspelled. Google's new spelling algorithm uses a deep neural net to significantly improve our ability to decipher misspellings. According to Google, this single change makes a greater improvement to spelling than all of their improvements over the last five years.

Passages on web pages

For very specific queries, Google is now able to index individual passages from web pages. This technology will improve 7 percent of search queries across all languages.

Subtopics

Google now understands subtopics around an interest. For example, if you search for "home exercise equipment," Google can now understand relevant subtopics, such as budget equipment, premium picks, or small space ideas. Google will start rolling this out by the end of this year.

Understanding key moments in videos

Google is not able to automatically identify and tag key moments in videos. This enables you to navigate them like chapters in a book. By the end of 2020, Google expects that 10 percent of searches on Google will use this new technology.

"Google’s John Mueller said on Twitter that Google will index content and links if it is in the rendered HTML code of the page. That means that content and links won’t be indexed if that content is only loaded by JavaScript after clicking something on the website."

Editor's note: Find out if search engines can see the content of your web pages.

"Google has just updated the Search Quality Raters Guidelines PDF. The last time it was updated was on December 5, 2019, which was 10 months and 10 days ago. The new date on this document is October 14, 2020. It has been expanded from 168 pages to 175 pages."

"Google’s John Mueller has confirmed that, starting March 2021, Google will only use mobile crawlers to index web pages. Instead of ‘mobile first’ indexing, it should be called ‘mobile only’ indexing."

Editor's note: Check your website with a mobile web crawler with the website audit tool in SEOprofiler.

"Google will now preemptively disapprove free standard listings for products that are marked as out of stock in the product data in Merchant Center, but are in stock on their landing pages."