Foxy SEO Tool od McNulty

Foxy SEO Tool provides quick and easy access to a multitude of search engine functions and web traffic analysis sites such as Alexa, Compete and SEMRush. You can check a site's listing in important directories like Dmoz, references in Wikipedia, Twitter, Facebook, shortcuts to useful network functions, social media sites and keywords research tools, etc.

Foxy SEO Tool also supports a french localised version.