WebPageTest - Website Performance and Optimization Test. Run a free website speed test from around the globe using real browsers at consumer connection speeds with detailed optimization recommendations.
WP2Speed - Tăng Tốc Độ Website WordPress, Tối Ưu Pagespeed Insight. Tối ưu tốc độ website Wordpress, tốc độ tải trang, tăng hiệu suất website. Tối ưu Google Pagespeed Insights, GTMetrix, Webpagetest, Pingdom