Is there anyway to speed up our websites?

[johanhur]

Hi, This is Johan. We recently launched multi-language eCommerce websites based on Magento 2.06
I am wondering there's anyway to speed up our websites. (any opinions are welcome!)
The websites consist of three URLs.

1. https://global.ssg.com
-> This website is providing English and Korean language services
2. https://cn.ssg.com
-> This website is providing Chinese language service
3. https://jp.ssg.com
-> This website is providing Japanese language service

I checked our websites' speed at https://gtmetrix.com/.
The google page speed grade is fine, however, the Yahoo Yslow score is not satisfying. I don't know why they gave different grades though.

[GauravMehta04]

Many ways to speed up site performance.. few tips over here http://mehtagaurav.blogspot.in/2010/12/speed-up-magento-performance.html

[OST Agency]

You can check the following link:

https://mirasvit.com/blog/7-ways-to-improve-your-magento-2-site-speed.html

You may get help from here.

[johanhur]

Thank you, it is very helpful method. 

[johanhur]

Thank you very much. I really appreciate what you suggest!