matclab on Nostr: According to my firefox DANE extension, https://www.first.org which is a security ...

According to my firefox DANE extension, https://www.first.org which is a security related web site has a #DNSSEC record that doesn't match.
Shall I be worried of a #MitM ? Or is there #DNS badly configured ?
Can someone confirm on their side ?
npub1jw50ps6cehf060ytu6c7g4udrha6g002grwamtzvfhk8xk58nekq4k9fry (npub1jw5…9fry), perhaps it is of some interest for you ?