I found a method like below.
We are testing now and we are expecting good results.
It's best to introduce a CDN. But I think this method works fine too.
https://seravo.fi/2013/tips-to-optimize-images-for-faster-loading-websites
Hi Ritika Saini
There are many well-known website test URLs. Not used now.
The site has become too heavy (slow).
This is not just because of the image.
It's difficult to say more than that. Hahaha.
But I want to do more optimization.
Thanks to the SE site managers Donna, Abuk, SEAO (Sally, Ritu etc..) who helped me a lot.
The sad news is that SE is not available here in Korea. Korean input is not possible.(feed, message etc). The site cannot be started. I just experiment. So I am very excited about the V6.
Happy SE