Attempting to check h-card/h-entry values gives a curl 'could not resolve host' error

[dltj]

When I try to use the validation services, I'm getting a Curl error that my hostname couldn't be found.

I'm pretty sure the DNS name is well distributed. It hasn't changed in months, and according to at least one checker it is seen all over the net.

[dltj]

dltj.org is a CloudFront-distributed static website. It has both A and AAAA DNS records pointing to the CloudFront distribution.

; <<>> DiG 9.10.6 <<>> a dltj.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19219
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; OPT=15: 00 02 66 6f 72 20 44 53 20 64 6c 74 6a 2e 6f 72 67 2e ("..for DS dltj.org.")
;; QUESTION SECTION:
;dltj.org.			IN	A

;; ANSWER SECTION:
dltj.org.		60	IN	A	3.167.138.111
dltj.org.		60	IN	A	3.167.138.11
dltj.org.		60	IN	A	3.167.138.127
dltj.org.		60	IN	A	3.167.138.49

;; Query time: 89 msec
;; SERVER: 100.100.100.100#53(100.100.100.100)
;; WHEN: Fri Dec 27 22:16:32 EST 2024
;; MSG SIZE  rcvd: 123

...and...

; <<>> DiG 9.10.6 <<>> aaaa dltj.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53431
;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; OPT=15: 00 02 66 6f 72 20 44 53 20 64 6c 74 6a 2e 6f 72 67 2e ("..for DS dltj.org.")
;; QUESTION SECTION:
;dltj.org.			IN	AAAA

;; ANSWER SECTION:
dltj.org.		60	IN	AAAA	2600:9000:26c5:1c00:b:c9a8:3100:93a1
dltj.org.		60	IN	AAAA	2600:9000:26c5:6c00:b:c9a8:3100:93a1
dltj.org.		60	IN	AAAA	2600:9000:26c5:3000:b:c9a8:3100:93a1
dltj.org.		60	IN	AAAA	2600:9000:26c5:2c00:b:c9a8:3100:93a1
dltj.org.		60	IN	AAAA	2600:9000:26c5:5c00:b:c9a8:3100:93a1
dltj.org.		60	IN	AAAA	2600:9000:26c5:9000:b:c9a8:3100:93a1
dltj.org.		60	IN	AAAA	2600:9000:26c5:7a00:b:c9a8:3100:93a1
dltj.org.		60	IN	AAAA	2600:9000:26c5:a00:b:c9a8:3100:93a1

;; Query time: 47 msec
;; SERVER: 100.100.100.100#53(100.100.100.100)
;; WHEN: Fri Dec 27 22:16:58 EST 2024
;; MSG SIZE  rcvd: 283

...in case that might make a difference.

[dltj]

One last comment for the moment...I took out the IPv6 AAAA record from the DNS...now waiting for it to expire from DNS caches.