Google's official speed measurement tool, recommended for mobile terminals
A free tool from Google that helps developers, website owners, and SEO professionals understand how their site is performing on Google
Screaming Frog is a search marketing agency drawing on years of experience from within the world of digital marketing.
Woospy has deployed a lot of tracking code through this tool.
I often use this tool to write articles for self-question and self-answer promotion. Generally, I will not tell people who are not familiar with it.
Several tools are available in order to generate schema like Google Structured Data Markup Helper
Give you actionable insight to help you optimize your online sales and marketing efforts
