xfinity.com DNSSEC Outage: 2015-10-30
Date: October 30, 2015
This page gives some details on the xfinity.com DNSSEC outage on October 30, 2015.
Timeline / DNSViz
Verisign's DNSSEC Debugger doesn't archive test results, so here's a screenshot I took of my web browser's output:
Zonemaster archived this xfinity.com DNSSEC outage.