Leadfeeder plugs in to your Google Analytics and shows real companies visiting your website. It integrates to your CRM and email marketing tools to increase your sales intelligence. With Leadfeeder's Slack app, you can be alerted to Slack channel of your choice when a company that matches certain criteria (e.g. is first time on your site, is from your target market, or is already in your CRM) visits your site.You can plug in Leadfeeder to Slack if you have trial/paid version of Leadfeeder.