Open the current tab in SpyFu by Jeffrey Nichols
so good app
Dude!
excellent resource for a high level glance at performance.
https://builtwith.com/
http://www.webrankstats.com/
https://hunter.io/
http://www.zoominfo.com/
https://www.edatasource.com/
https://outreach.io
https://www.woorank.com/
http://www.datanyze.com/
Salesforce
https://www.similarweb.com/
http://toolbarbrowser.com/
Demandbase, Inc.