At the Mobile World Congress in 2010, Eric Schmidt, the CEO of Google, said that designers should follow the "Mobile-First" rule in product design. The explosive growth of mobile devices has prompted designers to pay attention and follow the principle of "mobile-first design". The key is to focus on content and speed.

Google is already taking steps to keep up with the ever-growing transition to mobile by deploying a new approach to indexing web pages. They call it "Mobile-First indexing". It's how Google ensures it's getting the bests mobile content for people searching across the entire web.

The Bottom Line: Your website must be the fastest and best optimised across all devices, but especially mobile, within its niche - or risk seeing a significant hit to search engine rankings, traffic, and ultimately business.

Our website's loading speed is clearly stated within the rate that Google loves. So if what is your site's speed? You can use the Google Speed Test tool to find your site's speed. 

How do you know if your website is Mobile-friendly? You can find out with Google Mobile-friendly tester. This lets you know whether your current website meets Google's indexing requirement. 

The desktop computer is dying, and stop spending too much time creating sub-par mobile sites that users hate. More than mobile responsiveness is needed to keep mobile users on your site. 

If you want to create an easy-to-use website that Google and users will love, mobile-first design is simply the only way to go.