Subdomain.domain.edu not showing in 1.1.1.1

Firefox started using DoH ( Firefox DNS-over-HTTPS | Firefox Help ) and defaults to 1.1.1.1 as the nameserver.

We found that 1.1.1.1 can’t resolve xxx.yyy.berkeley.edu names and so firefox browsers can’t get to those sites.

For example, with cloudflare
% host oaks.cnr.berkeley.edu 1.1.1.1
Using domain server:
Name: 1.1.1.1
Address: 1.1.1.1#53
Aliases:

Host oaks.cnr.berkeley.edu not found: 2(SERVFAIL)

With google:
% host oaks.cnr.berkeley.edu 8.8.8.8
works fine.

Firefox can be configured to use a different DNS provider, but it’d be great if 1.1.1.1 worked.

Can confirm, also not resolving for me on 1.1.1.1. I swear Cloudflare keeps having trouble with DNSSEC. It really shows that 1.1.1.1 is NOT ready for prime-time and should be considered a beta product.
Happened with Lancaster University’s domain too and was only fixed after more than 6 months.

All other resolvers seem to work except Cloudflare. Output from Dig Web Interface using all resolvers:

[email protected] (Default):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (AdGuard (CY)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (AT&T (US)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (CloudFlare):  


[email protected] (Comodo (US)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (Google):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (HiNet (TW)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (OpenDNS):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (Quad9):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (Securolytics (CA)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (UUNET (CH)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (UUNET (DE)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (UUNET (UK)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (UUNET (US)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (Verisign (US)):  
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

[email protected] (Yandex (RU)):  Copy results to clipboard 
oaks.cnr.berkeley.edu.	10800	IN	CNAME	nature.berkeley.edu.
nature.berkeley.edu.	300	IN	A	169.229.19.202

Here are the threads on Lancaster University domains: