Default Front page (www.foofighters.com) certificate expired

Tried visiting the main front page and got this:

https://photos.smugmug.com/Other/Ima.../i-cK35K8v.png

huh...can't post an image. Well, it's a warning that the certificate is expired
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5/06/2012 New Orleans Jazz Fest
9/21/2012 Piedmont Park (Music Midtown) Atlanta, GA
10/31/2014 Ryman Auditorium, Nashville TN
05/01/2018 Rupp Arena, Lexington KY
07/26/2018 Noblesville Indiana