Free Online Google Tool to Test PageSpeed

Just enter the url of any page, and Google give an over view on mobile & web
https://developers.google.com/speed/pagespeed/insights/

thanks for this post, but this info is very old.

Its not for you, but for others, seo begeners

You can also try GTMETRIX, they are also giving valuable feedback about your website

Excellent, very much useful.
Like this genuine and free tools we are expecting from Google.

Thanks for the share.

Thank you for sharing such an useful tool.

Pinterest is google as a social network , and each counter will be counted from Pinterest traffic on social networks , helping more diverse access resources on their website .

Superb tool sharing for checking website this tool very helping for me and anyone.
Thanks for sharing...

You can pingdom.com for page speed.

try
https://developers.google.com/speed/pagespeed/insights/

google insight is great tool to check the website downloading time and error

We have gtmetrix and pingdom tools also to test page loading speed but Google insights is giving more clear details and explanation than other free tools in the market.