Currently only limited information about the hostname xvfrkfsp.outbound-mail.sendgrid.net is available. Please have a look at the full domain report for sendgrid.net for extended statistics about the Sendgrid.net website.
Authoritative Information for the .net Top-Level Domain Delegation
Top-level domains (TLDs) are internet domain name extensions that are operated by the Internet Assigned Numbers Authority (IANA). Generic Top-Level Domains (gTLDs) like .net consist of 3 or more characters and are intended for general use. Please visit IANA for more information about the .net root zone.