licdn.comは安全ですか？

This domain name is owned by LinkedIn Corporation. Source at https://whois.domaintools.com/licdn.com This domain name is needed to display Linkedin website content It is not fully clear what Linkedin use that domain name for. "CDN" usually stands for "Content Delivery Network" (CDN). Which speeds up the delivery of selected content. Using a globally distributed network of proxy servers deployed in multiple data centers. Read more at ***** As for "static", within the context of CDN it usually stands for "static content". Such as style sheets, scripts, images, and other type of content use by websites. As of May 2017 that website does not seem to store cookies to collect data. So I'm assuming that domain name is just for delivering Linkedin content faster via a CDN.