Hexadecimal notation not resolving

[alexbrand]

Sometime in the last 2-3 days, hex-based resolution does not seem to be working.

$ dig app-c0a801fc.nip.io

; <<>> DiG 9.18.25 <<>> app-c0a801fc.nip.io
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50577
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 084f461a3cc87def (echoed)
;; QUESTION SECTION:
;app-c0a801fc.nip.io.           IN      A

;; AUTHORITY SECTION:
app-c0a801fc.nip.io.    26      IN      SOA     app-c0a801fc.nip.io. briancunnie.gmail.com. 20250615 900 900 1800 180

;; Query time: 1 msec
;; SERVER: 10.43.0.10#53(10.43.0.10) (UDP)
;; WHEN: Mon Jun 16 15:35:02 UTC 2025
;; MSG SIZE  rcvd: 155


$ nslookup app-c0a801fc.nip.io
Server:         10.43.0.10
Address:        10.43.0.10#53

*** Can't find app-c0a801fc.nip.io: No answer

[krogon]

PR created: cunnie/sslip.io#95

[gerardnico]

This is because now it runs sslip.io. The PR of @krogon was rejected ... pfff