GOOGLE PAGE SPEED：PageSpeed Insights

google page speed   google mao PageSpeed Insights is a tool that helps you measure and improve the performance of your web pages on all devices. Learn how to use it, what's new, and more about web performance from Google Developers

google translate Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages

gg dịch tìm trên google Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for