Alexa the Web Information Company Alexa - The Web Information Company. Services: Alexa Web Information Service; Alexa Toolbar; Alexa Search Engine; Alexa Site Info Pages. Alexa provides information about websites including Top Sites,Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Informationand Search Analytics for SEM and SEO optimization. The Alexa Toolbar is a browser add-onthat shows data about sites as you surf the web in Public bookmarkswith alexainforankingsearchsitestatisticstooltoolbartoptrafficwebby 98 users