Enjoy looking at the most advanced SEO metrics while you search the Web.
Since last update that Google made for SERP Javascript layout this extension stop working.
Not very intuitive, the toolbar i don't like, poor in tooltips.
excelente
https://www.woorank.com/
http://majestic.com/
https://seominion.com/
https://nightwatch.io
https://ahrefs.com
https://opace.agency/
http://www.webrankstats.com/
http://www.linkresearchtools.com/
http://www.seoclarity.net/
https://www.serpworx.com/
http://www.linkresearchtools.com/
https://site-seo-analysis.com