SiteTools by BrowserNative

Light-weight and privacy-friendly extension for webmasters, SEO and web marketers. Offers quick access to many services like Alexa, Whois, Google Index, SimilarWeb, SEMrush, Moz Link Explorer, Google Cache, Google’s Mobile-friendly test, PageSpeed Insights etc.

Visit homepage for more information: https://browsernative.com/sitetools/