Google Web Light – Speeding Up the Mobile Web 

A while ago Google introduced Google Web Light  to provide streamlined search results and optimized pages when the user searches on slow mobile connections, such as 2G. 
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If you want to try this out and see for yourself how your sites hold up against this, you can add the full URL of your site URL to this link, replacing everything after the “=”.
http://googleweblight.com/?lite_url=http://optimeranu.blogspot.se/
https://foobartel.com/2015/07/google-web-light/